Shipping is free. About this item: - Replace your clunky old box spring with this 14-inch folding platform frame for better, cleaner support - With 13 inches of clearance, this base creates plenty of under bed space for all your storage needs - Quick and easy assembly takes one person, less than five minutes, and no extra tools; Simply unfold and hand-tighten the leg support bolts - Steel support braces, anti-slip treads, and a surface grid design create exceptional stability built to hold upto 750 pounds - Perfect base for all mattress types; Backed by a 5-year warranty that guards against manufacturer defects