Bottom rails may be added in lieu of bottom tension wires, and for taller fences, 10 feet or more, intermediate horizontal rails are often added. A top tension wire may be used in this situation. Top horizontal rails are used on most chain-link fences, although not necessary if the terminal posts are braced correctly. 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. The installer attaches the fence at one end, stretches it, and attaches at the other, easily removing the excess by "unscrewing" a wire. Posts set between the terminal posts are called "line posts" and are set at intervals not to exceed 10 feet. End, corner or gate posts, commonly referred to as "terminal posts", must be set in concrete footing or otherwise anchored to prevent leaning under the tension of a stretched fence. The posts may be steel tubing, timber or concrete and may be driven into the ground or set in concrete. The installation of chain-link fence involves setting posts into the ground and attaching the fence to them. Allowing ivy to grow up the fence and interweave itself is also popular. A chain-link fence can be made semi-opaque by using fence inserts in the mesh. 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. Tennis courts often use a diamond size of 1.75 inches (4.4 cm), as measured flat side to flat side, so that power hitters cannot lodge the ball in the fence. Mesh length can also vary based on need, with the standard diamond size being 2 inches (5.1 cm).įor tennis courts and ballparks, the most popular height is 10 or 12 feet (3.0 or 3.7 m). Mesh is commonly 9, 11, or 11 + 1⁄ 2 wire gauge. 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. 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. Sizes and uses Ī chain-link fence allows light to pass through while protecting windows. Mafera's patent was updated in 1952, but expired in 1969 and is now used in the production of most chain link fencing. Mafera first sold this type of fencing from his company the Barnyard Fence Company in Raymond, New Hampshire, and his brother sold and produced the fencing at the American Chain Link Fence Company in Medford. Mafera, patented a method of "forming wire fence fabric" in 1930 which made chain link fence safe and practical for residential use, as it "eliminate 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." Frank J. While sources vary on when Mafera first patented the method of forming chain link fence, his brother, Frank J. In the mid-1890s, the American Chain Link Fence Company in Medford, Massachusetts, was the first company in the United States to patent an "exclusive manufacturing process of continuous wire fabric" thanks to a patent by founder Guy Mafera which he first used to make spring beds. While living in Raymond, Mafera patented the method for making residential chain-link fencing. A New Hampshire Historical Marker in Raymond, New Hampshire commemorating Mafera’s innovation.
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