Our drape supports are designed to hold the distributed weight of fabric up to the weight of the steel bases that support the backdrop frame; so for 8’ H, which typically uses 10lb bases, I would say that a 6-10’ adjustable drape support can support 20lb of DISTRIBUTED FABRIC WEIGHT at 8’ H.

If you choose to hang anything besides fabric drapes, then we cannot advise as to the weight capacity of the drape supports, though we understand, of course, that sometimes pipe and drape is used in ways different from its intended purpose.