Metal Channels
Metal channels are roll-formed products, generally used for supports and guide rails. Metal channels can be described as U channels, J channels, C channels, hat channels, or hemmed channels, based on their shape.
U channels are the most basic type of metal channel. They consist of a base, called a web, and two legs of equal length. A J channel also has a web and two legs, but one leg is longer, as in the letter J. In a C channel, the legs fold back in on the channel so that it resembles the letter C. The top-folded ends in a C channel are known as rets. In a hat channel, on the other hand, the legs are folded outward, as in an old-fashioned men's hat. A hemmed channel is a channel where the top of the leg is folded back to form a double thickness. More types of channels are also available to meet individual need.
Metal channels have applications in construction, transportation, appliances, and many other industries. They are commonly used in signposts and deck rails along highways, in constructing wood flooring for athletic facilities, in making and installing windows and doors, and for many other purposes.