Patent ID: 8407966

Claim:
An upper chord bearing joist comprising: a top chord member being cold-formed from a unitary piece of sheet steel and having: a flange portion, a web receiving portion including two web receiving tabs, and a pair of integral inner flange portions, each inner flange portion extending substantially perpendicularly from one of the web receiving tabs so as to be in a spaced relationship to the flange portion; a bottom chord member being cold-formed from a unitary piece of sheet steel and having a flange portion and a web receiving portion including two web receiving tabs; and a generally planar solid steel web, a portion of the web being attached to the top chord member and to the bottom chord member, wherein a top portion of the web is between the two web receiving tabs of the top chord member and a bottom portion of the web is between the two web receiving tabs of the bottom chord member, said top portion defining a top surface area of contact, and said bottom portion defining a bottom surface area of contact, the generally planar solid steel web having a top surface and a bottom surface; wherein the top surface and bottom surface of the web extend substantially straight, and each chord member is cambered about the web such that the top and bottom surface area of contact varies along a length of the joist.