Vestil Internestable Portable Stackable Rack Systems, models NEST-F-4848 and NEST-F-6048 will stack and nest for maximum versatility. Remove or change post heights depending on application. All heights noted are for load heights. Each unit features a uniform capacity of 4,000 pounds. Design allows for stacking up to two (2) units high. Solid steel deck construction. Rugged welded steel construction with powder coat blue finish. Large target and pintle for speedy alignment. Units are available with fork lift pockets, solid decking, and caster kits.