Among the most common channel sizes are 41 x 21mm and 41 x 41mm profiles although larger sizes are available such as 41 x 62mm and 41 x 83mm. Supplied as either single or back to back using 2.5mm steel in either 3m or 6m lengths. Channel can also be supplied in pre-cut lengths. The struts can be plain or slotted which have a series of pre-cut slots for faster fixing. We also offer Rapid Rail mini-channel, and heavy-duty box sections. There are also accessories such as end caps and cover strips, particularly handy for a good cosmetic finish. Depending upon the desired finish channel lengths are offered in pre-galvanised, hot-dip galvanised or stainless steel.