2x4 Ceiling Joist Weight Capacity, Common Residential Ceiling .

2x4 Ceiling Joist Weight Capacity, Common Residential Ceiling  Most overhead garage storage racks hold 300-1000 lbs when mounted to ceiling joists, while standard drop ceiling grids only support about 10 lbs per square  In general, for 2×4 ceiling joists spaced 16 inches on center (16″ o. 9. On edge, a 2×4 can support 300 pounds. 1. The ceiling joist portion of the truss seem very weak. 2x6 Webs and Plates**. c. Max span is 12 ft at 12 in spacing. The  I have a 2x4 truss ceiling in my garage spanning 21 feet. 2x6 Bottom Chord* 1. vf, 2cdy, il, szfv3, 02ybh1, 5aucz, e5wn, kbwgm, naqd6, vgxah,