Fence Contractor in Aurora, CO – Commercial Fencing Specialists
Fence Contractor in Aurora, CO – Commercial Fencing Specialists . 
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A fence is a structure that encloses an area, typically outdoors creating a boundary, and is usually constructed from posts that are connected by boards, wire, rails or netting.[1] A fence differs from a wall in not having a solid foundation along its whole length.[2]
Alternatives to fencing include a ditch (sometimes filled with water, forming a moat).
A balustrade or railing is a fence to prevent people from falling over an edge, most commonly found on a stairway, landing, or balcony. Railing systems and balustrades are also used along roofs, bridges, cliffs, pits, and bodies of water.
Another aim of using a fence is to limit intrusion. In support of these barriers there are sophisticated technologies that can be applied on the fence itself to strengthen the defence of an area, such as:
In most developed areas the use of fencing is regulated, variously in commercial, residential, and agricultural areas. Height, material, setback, and aesthetic issues are among the considerations subject to regulation.
The following types of areas or facilities often are required by law to be fenced in, for safety and security reasons:
Servitudes[6] are legal arrangements of land use arising out of private agreements. Under the feudal system, most land in England was cultivated in common fields, where peasants were allocated strips of arable land that were used to support the needs of the local village or manor. By the sixteenth century the growth of population and prosperity provided incentives for landowners to use their land in more profitable ways, dispossessing the peasantry. Common fields were aggregated and enclosed by large and enterprising farmers—either through negotiation among one another or by lease from the landlord—to maximize the productivity of the available land and contain livestock. Fences redefined the means by which land is used, resulting in the modern law of servitudes.[7]
In the United States, the earliest settlers claimed land by simply fencing it in. Later, as the American government formed, unsettled land became technically owned by the government and programs to register land ownership developed, usually making raw land available for low prices or for free, if the owner improved the property, including the construction of fences. However, the remaining vast tracts of unsettled land were often used as a commons, or, in the American West, "open range" as degradation of habitat developed due to overgrazing and a tragedy of the commons situation arose, common areas began to either be allocated to individual landowners via mechanisms such as the Homestead Act and Desert Land Act and fenced in, or, if kept in public hands, leased to individual users for limited purposes, with fences built to separate tracts of public and private land.[8]
Ownership of a fence on a boundary varies. The last relevant original title deed(s) and a completed seller's property information form may document which side has to put up and has installed any fence respectively; the first using "T" marks/symbols (the side with the "T" denotes the owner);[9] the latter by a ticked box to the best of the last owner's belief with no duty, as the conventionally agreed conveyancing process stresses, to make any detailed, protracted enquiry.[10] Commonly the mesh or panelling is in mid-position. Otherwise it tends to be on non-owner's side so the fence owner might access the posts when repairs are needed but this is not a legal requirement.[11] Where estate planners wish to entrench privacy a close-boarded fence or equivalent well-maintained hedge of a minimum height may be stipulated by deed. Beyond a standard height planning permission is necessary.
Where a rural fence or hedge has (or in some cases had) an adjacent ditch, the ditch is normally in the same ownership as the hedge or fence, with the ownership boundary being the edge of the ditch furthest from the fence or hedge.[12] The principle of this rule is that an owner digging a boundary ditch will normally dig it up to the very edge of their land, and must then pile the spoil on their own side of the ditch to avoid trespassing on their neighbour. They may then erect a fence or hedge on the spoil, leaving the ditch on its far side. Exceptions exist in law, for example where a plot of land derives from subdivision of a larger one along the centre line of a previously existing ditch or other feature, particularly where reinforced by historic parcel numbers with acreages beneath which were used to tally up a total for administrative units not to confirm the actual size of holdings, a rare instance where Ordnance Survey maps often provide more than circumstantial evidence namely as to which feature is to be considered the boundary.
On private land in the United Kingdom, it is the landowner's responsibility to fence their livestock in.[13] Conversely, for common land, it is the surrounding landowners' duty to fence the common's livestock out such as in large parts of the New Forest. Large commons with livestock roaming have been greatly reduced by 18th and 19th century Acts for enclosure of commons covering most local units,[14] with most remaining such land in the UK's National Parks.
A 19th-century law requires railways to be fenced to keep people and livestock out.[15] It is also illegal to trespass on railways, incurring a fine of up to £1000.
Distinctly different land ownership and fencing patterns arose in the eastern and western United States. Original fence laws on the east coast were based on the British common law system, and rapidly increasing population quickly resulted in laws requiring livestock to be fenced in. In the west, land ownership patterns and policies reflected a strong influence of Spanish law and tradition, plus the vast land area involved made extensive fencing impractical until mandated by a growing population and conflicts between landowners. The "open range" tradition of requiring landowners to fence out unwanted livestock was dominant in most of the rural west until very late in the 20th century.[16] Even today, a few isolated regions of the west still use the open range system.[17] More recently, fences are generally constructed on the surveyed property line as precisely as possible. Today, across the nation, each state can develop its own laws regarding fences. In many cases for both rural and urban property owners, the laws were designed to require adjacent landowners to share the responsibility for maintaining a common boundary fenceline, for example in California.[18] Today, however, only 22 states have retained that provision. In Texas a landowner has no legal obligation to share in the costs or future maintenance of a fence built by his or her neighbor, unless previously agreed. There is no specific statutes but court cases have set this legal precedent.[19]
Some U.S. states, including Texas, Illinois, Missouri, and North Carolina, have enacted laws establishing that purple paint markings on fences (or trees) are the legal equivalent of "No Trespassing" signs. The laws are meant to spare landowners, particularly in rural areas, from having to continually replace printed signs that often end up being stolen or obliterated by the elements.[20]
Along the shores of Lake Balaton, reed fences are often used to separate holiday cottages.
The value of fences and the metaphorical significance of a fence, both positive and negative, has been extensively utilized throughout western culture. A few examples include:
Notes
Bibliography
The dictionary definition of fence at Wiktionary
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In agriculture, fences are used to keep animals in or out of an area. They can be made from a wide variety of materials, depending on terrain, location and animals to be confined. Most agricultural fencing averages about 4 feet (1.2 m) high, and in some places, the height and construction of fences designed to hold livestock is mandated by law.
A fencerow is the strip of land by a fence that is left uncultivated. It may be a hedgerow or a shelterbelt (windbreak) or a refuge for native plants. If not too narrow, it acts as a habitat corridor.[1][2]
Historically throughout most of the world, domesticated livestock would roam freely and were fenced out of areas, such as gardens or fields of crops, where they were unwanted. Over time, especially where crop agriculture became dominant and population density of both humans and animals was significant, livestock owners were made to fence their animals in.
The earliest fences were made of available materials, usually stone or wood, and these materials are still used for some fences today. In areas where field stones are plentiful, fences have been built up over the years as the stones are removed from fields during tillage and planting of crops. The stones were placed on the field edge to get them out of the way. In time, the piles of stones grew high and wide.
In other areas, fences were constructed of timber. Log fences or split-rail fences were simple fences constructed in newly cleared areas by stacking log rails. Earth could also be used as a fence; an example was what is now called the sunken fence, or "ha-ha," a type of wall built by digging a ditch with one steep side (which animals cannot scale) and one sloped side (where the animals roam).
The tradition of fencing out unwanted livestock prevails even today in some sparsely populated areas. For example, until the mid-20th century, most states in the American West were called "open range" ("fence out") states, in contrast to Eastern and Midwestern states which long had "fence in" laws where livestock must be confined by their owners. Though the open range was part of the western tradition, over time, open range was limited long before it was eliminated; first came an obligation to keep cattle from roaming onto state and federal highways, where collisions with fast-moving cars and trucks created a public safety hazard. In addition, voters could voluntarily choose to make certain heavily farmed areas a "herd district," where livestock needed to be fenced in, a process that also became popular in areas where development of hobby farms created conflicts between large and small landowners. Over time, court cases steadily limited the application of open range law until the present day, where it is the exception rather than the rule in many parts of the American West.
In the United Kingdom, the law is different for private land and common land. On private land it is the owner's responsibility to fence livestock in, but it is the responsibility of landowners bordering a common to fence the common's livestock out.
Additionally, railways in the UK are fenced to keep livestock and people out, since it is a requirement to do so, unlike many other countries. Either Network Rail or the landowner are responsible for maintaining the fences.[3]
The principle of wire fences is that they are supported mainly by tension, being stretched between heavy strutted or guy-wired posts at ends, corners, and ideally at intervals in longer stretches (every 50 to 300 metres, 150 to 1000 feet). Between these braced posts are additional smaller wooden or metal posts which keep the wires spaced and upright, usually 3 to 6 metre (10 to 20 feet) apart, depending on the style of fencing used.
Traditionally, wire fencing material is made of galvanized mild steel, but galvanized high-tensile steel is now also used in many places. To prevent sagging of the fence, which raises the risk of entanglement or escape, the wire is tensioned as much as the material will safely allow during construction by various means, including a hand-operated "wire stretcher" or "fence stretcher"[4] (called a "monkey strainer" in some areas) or other leverage devices, a winch, or even by carefully pulling with a tractor or other vehicle.
Wire fences are typically run on wooden posts, either from trees commercially grown in plantations or (particularly in the American West) cut from public lands. When less expensive or more readily available than wood, steel T-posts or star posts are used, usually alternating every 2 to 5 steel posts with a more stable wood post. Non-electrified wire is attached to wooden posts using fencing staples (for intermediate posts, these are fitted loosely, not gripping the wire). Non-electrified wire is held on T-posts by means of wire "clips" made of smooth galvanized wire that wrap around the back of the post and hook onto the wire on either side of the post.[5]
Other than in a truly desert climate, use of rot-resistant wooden posts or steel posts is advised. In the United States, wood with natural rot resistance, such as oak and juniper, was often used until it became in short supply in the 1950s. Then, chemically treated pine and spruce posts became prevalent, and these are also widely used in Britain, together with chestnut. Creosote, pentachlorophenol, and chromated copper arsenate are all widely used in the US and elsewhere for treatment (although some of these chemicals are subject to legal controls).
The Industrial Revolution brought the first barbed wire (also "barbwire" or just "barb") fences, which were widely used after their introduction in the mid-19th century. This technology made it economically feasible to fence rangeland for the first time. In the United States, introduction of barbed wire contributed to the range wars of that century, as various ranch interests attempted to use barbed wire fences to claim exclusive access to the best pasture and water resources, including those lands in the public domain. It also exacerbated tensions between cattle ranchers and crop farmers, partly when access to water was involved.
Barbed wire has been made by many manufacturers in an almost endless variety of styles. For the most part these were functionally identical. The differences reflected peculiarities of each manufacturing process rather than deliberate design of the end product. Sections of unusual barbed wire are collected by some enthusiasts.
The traditional barbed wire used since the late 19th century and into the present day was made from two mild steel wires twisted together, usually of about 12 or 14 gauge, with about 15-30 twists per metre. Steel barbs were attached every 10–20 cm (3.9–7.9 in) . Barbs had either two or four points, with the two point design using somewhat heavier and longer barbs. The relative merits of two point vs. four point barbed wire are the subject of deeply held views among many farmers and ranchers, to the extent that both types are still made today.
Typically four strands of barbed wire, with the lowest strand no more than 12 inches (300 mm) from the ground and the top strand at least 48 inches above the ground, make up a legal fence in the western United States. Better-quality fences have five strands, older fences often had only three strands, and just two strands is widely used in Britain if only adult cattle are being contained. Other variations exist, depending on local laws and the purpose of the fence.
Barbed wire is particularly effective for containing cattle. In pastures containing both cattle and sheep, one or two strands of barbed wire is used in conjunction with woven wire to both discourage cattle from reaching over the top of a fence and to keep sheep from crawling under. Though often used in many areas for horses, barbed wire is not advised; its use is considered poor management. There is very high risk of injury occurring when a thin-skinned, fast-moving animal with long legs runs into it or puts a leg through the strands.
Smooth (or plain) wire is essentially the same product as barbed wire with no barbs – either a two-wire twist or a single strand. Its primary advantage is that it is less likely to cause lacerations and cuts if an animal becomes entangled in it or rubs against it. However, animals will readily lean on mild steel smooth wire, stretching it out of shape or loosening it from the posts, and for this reason it is often used in high-tensile form, which more easily springs back to its original length. Smooth wire fencing is often used as an inexpensive material to safely contain horses and other animals that run a high risk of entanglement, usually in conjunction with a line of electric fence. Smooth wire is also used in securing fence-post braces and other uses where barbed wire is not recommended
High tensile (H-T or HT) fencing is a special hard, springy steel wire[6] that was introduced in the 1970s and has slowly gained acceptance. The wire may be a single strand plain or barbed wire, or woven mesh, and is capable of much higher tension than mild steel. It permits the use of wider post spacings[7] and is neither stretched easily by animals,[8] nor by fallen trees or branches. It can be insulated and electrified. Because of the wide spacing of the posts, thin metal or wood spacers (or "droppers") may be attached to the wires between posts to maintain their spacing.
Joining HT wire is difficult because of its stiffness and its reduction in strength when bent sharply. However, it may be joined effectively with proprietary clips. HT wire is more expensive than mild steel, but because of the need for fewer posts, the overall cost of the fencing is usually comparable.
Because it does not stretch, animals are less likely to become entangled in HT wire. However, for the same reason, if an animal does become entangled or runs into a few strands at a high speed, it can be deadly, and is sometimes referred to as having a "cheese cutter" effect on the animal.
Trellising for horticultural purposes is generally constructed from HT wire as it is able to withstand a higher crop load without breaking or stretching.
Woven and mesh wire fencing material has smooth horizontal wires and vertical wires (called stays). Wire spacing and height of fence is dependent on which type of animal is being contained.[9] Agricultural woven wire is identifiable by wire "knots" wrapped around each intersecting wire. Mesh wire material is spot welded at each junction. Woven wire and mesh wire fences are also called square wire, box wire, page wire, sheep fence, or hog fence in the United States, sheep netting or pig netting in Britain, and ringlock in Australia.
Barbed wire fences cannot effectively contain smaller livestock such as pigs, goats or sheep. Where these animals are to be fenced, woven wire is used instead, sometimes with one or more strands of barbed wire at the top, and sometimes at the bottom to prevent animals from pushing under.[10]: 15 For swine, a ground-level barbed wire strand or electrified wire is used as well to prevent digging beneath the fence.
Woven wire with large openings has some potential hazards. Large hoofed animals can put a foot through wide squares while grazing along the edge of the fenceline or while reaching over it, and then become tangled in the fence. A variation, called "field fence," has narrower openings at the bottom and wider openings at the top, which helps prevent animals from putting their feet through the fence. For example, horses in particular are safer kept inside woven wire fence with smaller openings, such as "no climb" fence with openings no larger than 2 by 4 inches (5.1 by 10.2 cm).[11]
Hog panels or cattle panels consist of heavy wire approximately 0.25 inches (6 mm) or more in diameter running horizontal and vertical, and welded at the intersections. The panels, which are sold in lengths of 16 or 8 feet (4.88 or 2.44 m) rather than in rolls, are rigid and self-supporting. No corner bracing is needed with panels as they are not stretched and there is no tension on corner posts.[10]: 61
Chain link fencing is occasionally used for some livestock containment. However, due to cost, it is not particularly common for fencing large areas where less-expensive forms of woven wire are equally suitable. When used in small enclosures, it is easily deformed by livestock, resulting in high ongoing maintenance costs.
Electric fencing became widely available in the 1950s and has been widely used both for temporary fences and as a means to improve the security of fences made of other materials. It is most commonly made using lightweight steel wire (usually 14-17 gauge) attached to posts with insulators made of porcelain or plastic. Synthetic web or rope with thin steel wires interwoven to carry the electrical charge has become popular in recent years, particularly where additional visibility is desired.
A fence charger places an electrical pulse from ground to the wire about once per second. The pulse is narrow and usually around 5-20 kV. Animals receive an uncomfortable but harmless shock when contacting the wire, and learn to stay away from it.
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Synthetic fences encompass a wide range of products. Vinyl-coated wire fence is usually based on high-tensile wire with a vinyl coating. Some forms are non-electric, others embed layers of graphite to carry a current from the wire to the outside of the coated product so that it can be electrified. It can be of any color, with white particularly common in the United States so that the fencing is visible to livestock. Most forms can be installed on either wood posts or steel t-posts.
A variant, sometimes called "vinyl rail" or "strap fencing" consists of two or more vinyl-encased wires with vinyl or other synthetic between them to create a "rail" that is anywhere from 1 to 10 centimetres (3⁄8 to 3+15⁄16 in) wide. Some forms may be electrified by use of a special coating on the top wire of the "rail."
Vinyl fence is installed in a manner similar to plain high-tensile fence and must be stretched tight. Strong bracing of posts at corners and in the middle of long fencelines is required. Like other wire fences, keeping vinyl fencing tightened on a regular basis is key to safety and appearance.
A mesh form of vinyl fencing without internal wires is marketed as "deer fence" and used in some locations to augment other fencing to keep out wild animals. There are also some forms of vinyl fencing that look similar to vinyl-coated wire, but do not contain an internal wire, that are marketed to livestock owners. They are marketed as particularly safe, but their strength in containing animals is under debate.
Fences of wood, stranded cable, and pipe are used where cost is less of a consideration, particularly on horse farms, or in pens or corrals where livestock are likely to challenge the fence. Synthetic materials with wood-like qualities are also used, though they are the most expensive option in most situations. In some areas, these types of fencing materials can be cost-effective if plentiful. For example, scrap pipe is often easily obtained at a low price if oil fields are nearby, and wooden rails can sometimes be harvested from the owner's own land if it contains suitable standing timber.
A cattle grid is an obstacle used to prevent livestock, such as sheep, beeves, pigs, horses, or mules from passing along a road or railway which penetrates the fencing surrounding an enclosed piece of land or border.
All types of agricultural fencing require regular maintenance to ensure their effectiveness. Cattle and horses are strong enough to go through most types of fence by main force, and occasionally do so when frightened or motivated by hunger, thirst, or sex drive. Weather, flood, fire, and damage from vandals or motor vehicle accidents can do similar damage and may allow livestock to escape.
All types of livestock fencing can be barriers and traps for wildlife, causing injuries and fatalities. Wildlife can get their legs tangled in barbed wire or woven wire with a strand of barbed on top. Woven wire can barricade animals that cannot jump the fence but are too large to crawl through the holes, such as fawns, bears and bobcats. Some wire fences are too difficult to see for larger fast moving birds, which can get entangled in it.[12]
Adding visibility to wire fences can help reduce wildlife collisions. Reducing the height of woven and strand wire fences to no more than 40 inches (102 cm) can make it easier for wildlife to jump over with less risk of entanglement. Using barbless wires on top and bottom reduces cuts on wildlife which crawl under strand fences or those that try to climb over.[12]
Fladry lines, made of cloth, metal and/or other materials, are sometimes used on fences to discourage wolves from entering a livestock enclosure.
Deer and many goats can easily jump an ordinary agricultural fence, and so special fencing is needed for farming goats or deer, or to keep wild deer out of farmland and gardens. Deer fence is often made of lightweight woven wire netting nearly 2 metres (6 feet 7 inches) high on lightweight posts, otherwise made like an ordinary woven wire fence. In areas where such a tall fence is unsuitable (for example, on mountains subject to very high winds), deer may be excluded (or contained) by a fence of ordinary height (about 1.5 metres [4 feet 11 inches]), with a smaller one of about 1 metre (3 feet 3 inches) high, about 1 metre (3 feet 3 inches) away from it, on the same side as the deer. The additional width prevents deer approaching the fence close enough to jump it.
A brushy fencerow, which can provide an important link between different habitat types on your property, is an ideal place to start habitat improvement work. The simplest way to make or improve a travel lane is to stop mowing, grazing, or cultivating the strip next to the fence.
When we discuss "hedgerows", we also mean windbreaks or fencerows – basically any stretch of woody vegetation bordered on either side by grass and/or brush.
Popular Science 1935 plane Popular Mechanics.
cite web: CS1 maint: archived copy as title (link)One standard fence style you don't want to use is field fence, or "box wire." Box wire is dangerous for horses as the openings are large enough for a horse to put a foot through. Better are woven wire fences with small 2 in × 4 in (5.1 cm × 10.2 cm) openings or with the even smaller diamond mesh.
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A swimming pool fence is a type of fence placed around swimming pools, to create a passive barrier to restrict the access of small children to the swimming pool. Swimming pool fences must have a self-closing and self-latching gate/s to be compliant to most countries' laws and codes.
Swimming pool fences are designed so that young children cannot climb over them or go through them. They are manufactured to strict standards to be sturdy, durable and non-climbable.
Most countries design, manufacture and install swimming pool fences to the International Code Councils (ICC) guidelines.
Swimming pool fences are manufactured in several different types, using a variety of materials.
They can be slotted to allow visibility or solid for privacy.
Countries, states and municipalities within countries have different laws regarding swimming pool fencing laws, ranging from no laws at all to very strict laws and inspection programmes.
Starting from 2010 all states and territories in Australia are in various stages of reviewing their swimming pool fencing laws, requiring swimming pools to be registered with a state body and the implementation of a timed swimming pool barrier inspection program. All swimming pool barrier fencing must comply with Australian Standard for Swimming Pool Fencing (AS1926). Although some states and territories have particular laws and regulations, there are some stipulations that need to be abided by right across the nation. These include ensuring the pool fencing is 1200 mm high, with a gap of 100 mm or less at the bottom or between the newels. There should be no climbable objects within 900 mm of the pool fencing, and gates should be built so that they swing away from the pool, with a child safety lock.
The gate should be fitted with hinges that are self closing, and are able to do so from a stationary position without any manual force applied. Once closed, the gate should automatically lock and should not be able to be opened again with force unless the latch is manually opened. The gap between the gate panel and the latching panel should be less than 10 mm.
The Queensland state of Australia has very strict laws by world standards. On 1 December 2010 legislation was implemented that will see all swimming pool barriers in the state inspected and issued with a compliance certificate by 30 November 2015.
Swimming pools be surrounded by a four-sided compliant barrier (using the home as one side of the barrier was outlawed) with a minimum height of 1200 mm (48 inches) from permanent ground level and have non-climbable zones of 900 mm (36 inches) in a 180 degree arc measured from the top of the barrier. For non-climbable zones to be compliant there must not be any objects that are more than 10 mm (0.5 inch) in depth and width in the non-climbable zone. Gates are to be self-closing, self latching and not able to be sprung open when a 25 kg (55 pound) downward force is applied to the bottom of the gate.[1]
All swimming pools in Queensland are required to be registered with the Pool Safety Council. All properties leased or sold must have a swimming pool compliance certificate.[2] Short term accommodation providers and shared swimming pools must be inspected every two years. Licensed private swimming pool inspectors inspect swimming pool barriers and issue pool safety compliance certificates.
In 2013 there were 326,000 registered swimming pools in Queensland and 796 active private inspectors.
New South Wales is the only Australian state or territory to require that infinity or drop edge pools have fencing greater than the standard 1200 mm height requirement. Changes to the NSW legislation state that from 29 April 2016, NSW residential properties with a swimming pool or spa pool must have a certificate of compliance, a certificate of non-compliance or an occupation certificate for the pool barrier/fencing before the property can be leased or sold.[3]
There is no federal pool fence law currently in place within the United States. However, several states, including Florida[4] and Arizona,[5] have created their own individual pool fence laws. In 2017, the National Safety Council released a report ranking state laws on public pool and water facility regulations as well as four-sided residential pool fencing.[6]
The Association of Pool & Spa Professionals has developed a model barrier code for residential swimming pools, spas, and hot tubs; this code has been approved by the American National Standards Institute.
The International Code Council (I.C.C.), more often known by their former name, the Building Officials and Code Administrators (B.O.C.A.), outlined strong safety standards for swimming pool fences. In an effort to eliminate or reduce the accidental drowning of children, these standards have been recognized by many communities throughout the world. Certain states are more strict with their laws and the most populated states with Pools such as Arizona, California, Florida, and Texas have special statutes in place that discuss all pool fencing types including frameless glass railings. Above ground pools must also follow state and local pool codes if the water is at least 18 inches deep.
In 2006, 283 children under the age of five drowned in swimming pools in the United States.
The I.C.C. pool safety standards specify that:[7]
France was the first European country to introduce swimming pool barrier compliance regulations, applying from 1 May 2004. Failure to comply can result in a €45,000 fine. Spain publicly reported that they would soon follow suit.[citation needed]
Canada, the United Kingdom, Australia, New Zealand and South Africa also have swimming pool fencing laws.[citation needed]
Season 11 of Curb Your Enthusiasm prominently features Larry David's attempt to have a pool fence regulation repealed. After a burglar drowns in Larry's pool, the police inform Larry he must have a five-foot (1.5 m) fence around his pool due to a Santa Monica, California, regulation. The burglar's brother attempts to extort Larry, who responds by beginning a relationship with an unpleasant and unattractive city councilwoman in order to persuade her to repeal the law. In reality, Santa Monica has no such pool fence regulation.
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A chain-link fence (also referred to as wire netting, wire-mesh fence, chain-wire fence, cyclone fence, hurricane fence, or diamond-mesh fence) is a type of woven fence usually made from galvanized or linear low-density polyethylene-coated steel wire. The wires run vertically and are bent into a zigzag pattern so that each "zig" hooks with the wire immediately on one side and each "zag" with the wire immediately on the other. This forms the characteristic diamond pattern seen in this type of fence.
In the United Kingdom, the firm of Barnard, Bishop & Barnards was established in Norwich to produce chain-link fencing by machine. The process was developed by Charles Barnard in 1844 based on cloth weaving machines (up until that time, Norwich had a long history of cloth manufacture).[1] In the mid-1890s, the American Chain Link Fence Company in Medford, Massachusetts,[2] was the first company in the United States to patent an "exclusive manufacturing process of continuous wire fabric"[3] thanks to a patent by founder Guy Mafera which he first used to make spring beds.[4] While sources vary on when Mafera first patented the method of forming chain link fence, his brother, Frank J. Mafera, patented a method of "forming wire fence fabric" in 1930 which made chain link fence safe and practical for residential use. It "eliminate[d] each ragged selvage, particularly at the top of the fence, without sacrificing anything of the essential strength and rigidity, of the fence itself, thus to avoid danger of injury to hands or clothing."[5] Frank J. Mafera first sold this type of fencing from his company the Barnyard Fence Company in Raymond, New Hampshire,[6] and his brother sold and produced the fencing at the American Chain Link Fence Company in Medford.[7] Mafera's patent was updated in 1952, but expired in 1969 and is now used in the production of most chain link fencing.[8]
In the United States, fencing usually comes in 20-foot (6.1 m) or 50-foot (15 m) rolls, which can be joined by "unscrewing" one of the end wires and then "screwing" it back in so that it hooks both pieces. Common heights include one-foot increments from 3 feet (0.91 m) to 8 feet (2.4 m), and other heights including 3 feet 6 inches (1.07 m), 10 feet (3.0 m), and 12 feet (3.7 m) although almost any height is possible. Mesh is commonly 9, 11, or 11+1⁄2 wire gauge. Mesh length can also vary based on need, with the standard diamond size being 2 inches (5.1 cm).
For tennis courts and ballparks, the most popular height is 10 or 12 feet (3.0 or 3.7 m). Tennis courts often use a diamond size of 1.75 inches (4.4 cm),[9] as measured flat side to flat side, so that power hitters cannot lodge the ball in the fence.
The popularity of chain-link fence is from its relatively low cost and that the open weave does not obscure sunlight from either side of the fence. A chain-link fence can be made semi-opaque by using fence inserts in the mesh. Allowing ivy to grow up the fence and interweave itself is also popular.
The installation of a chain-link fence involves setting posts into the ground and attaching the fence to them. The posts may be steel tubing, timber or concrete, and may be driven into the ground or set in concrete. End, corner, or gate posts, commonly referred to as "terminal posts", must be set on a concrete footing or otherwise anchored to prevent leaning under the tension of a stretched fence. Posts set between the terminal posts are called "line posts" and are set at intervals not to exceed 10 feet. The installer attaches the fence at one end, stretches it, and attaches it at the other, easily removing the excess by "unscrewing" a wire. In many cases, the installer stretches a bottom tension wire, sometimes referred to as "coil wire", between terminal posts to help minimize the in and out movement that occurs at the bottom of the chain-link mesh between posts. Top horizontal rails are used on most chain-link fences, although not necessary if the terminal posts are braced correctly. A top tension wire may be used in this situation. Bottom rails may be added in place of bottom tension wires, and for taller fences, 10 feet or more, intermediate horizontal rails are often added. Finally, the installer ties the fence to the line posts and rails with steel or aluminum wire with a hook on one end called “fence ties”. The bottom tension wire should be secured to the line posts and the chain-link mesh "hog ringed" to the tension wire 2' on center.
The manufacturing of chain-link fencing is called weaving. A metal wire, often galvanized to reduce corrosion, is pulled along a rotating long and flat blade, thus creating a somewhat flattened spiral. The spiral continues to rotate past the blade and winds its way through the previous spiral that is already part of the fence. When the spiral reaches the far end of the fence, the spiral is cut near the blade. Next, the spiral is pressed flat, and the entire fence is moved up, ready for the next cycle. The end of every second spiral overlaps the end of every first spiral. The machine clamps both ends and gives them a few twists. This makes the links permanent.
An improved version of the weaving machine winds two wires around the blade at once to create a double helix. One of the spirals is woven through the last spiral that is already part of the fence. This improvement allows the process to advance twice as fast.[10]
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