Fully adjustable center support system designed to accommodate Full, Queen, California King, and King size bed frames. Features three steel cross rails with adjustable glide-equipped legs for superior mattress support and stability. Key Features Fully adjustable width from 52" to 77" to fit Full, Queen, California King, and King size beds Height adjustment from 4" to 15" for compatibility with various bed frame heights Three steel cross rails with adjustable glide-equipped legs 2,000 lb weight capacity for exceptional support Prevents side rails from bowing or bending under heavy mattresses 2" diameter glides protect floors and carpeting Compatible with both wooden and metal bed rails Lifetime service policy Product Specifications Specification Details Product Dimensions 54"W x 11"H Width 54 inches Height 11 inches Adjustable Width Range 52" to 77" Adjustable Height Range 4" to 15" Material Alloy Steel Weight 24 pounds Weight Capacity 2,000 pounds Number of Cross Rails 3 Number of Legs 3 (one per cross rail) Glide Diameter 2 inches Compatible Bed Sizes Full, Queen, California King, King Style Modern Care Instructions Wipe with damp cloth Installation Some assembly required. Illustrated assembly instructions and necessary tools are included. This center support system attaches to both wooden bed side rails and metal bed frame rails. Depending on your metal rails, some drilling may be necessary for attachment. Note: Please review all measurements carefully to ensure compatibility with your bed frame, as center supports are non-returnable.