Upgrade a wooden bed frame with the stable support of steel crossrails and a heavy-duty center support. Much stronger than wooden slats, the Adjustable Center Support System adjusts to fit Full, Full XL, Queen, King and Cal King bed sizes. Three cross rails adjust from 52.5 to 77.5 inches and lock by tightening an attached clamp. Rails have pre-drilled holes for frame attachment. The center support adjusts from 42 to 84 inches for customized support, and three legs on the center support adjust in height. Use the included allen wrench to adjust leg height from 6.5 to 15.5 inches. - Fits Full, Full XL, Queen, King and Cal King - Adjustable leg height - Quiet, sturdy support - Three adjustable-length steel cross rails accommodate Full, Full XL, Queen, King and Cal King beds - Heavy duty center support rail - Replace wooden bed rails with stable, quiet support system - Three support legs offer height adjustment from 6.2 to 15.5 inches - Allen wrench included for leg adjustment
