Channel bars are long pieces of metal in the shape of a letter U or letter C, consisting of a wide, flat strip with flanges on either side that form right angles. They got their name from the channel or pathway in between the two flanges and are also known as heavy-duty purlins.
6 meter
A C channel with a length of 3 to 4 feet can be used for structural support, framing, shelving, reinforcements, railings, automotive applications, and various DIY projects..
3ft-4ft