Heavy Duty Post Shelving is easy to assemble and is adjustable to best fit your space and storage requirements. High performance, large capacity design means fewer shelves, lower shelving costs and less post obstruction. Three trusses per shelf. 1250 lb. shelf weight capacity (for stationary shelving only). Blue Epoxy best for moist, humid areas. Chrome best for dry areas. 48"Wx21"D. 17 lbs.