FLEXIMOUNTS 3x6 Overhead Garage Storage Adjustable Ceiling Storage Rack, 72" Length x 36" Width x 40" Height, Black Integrated grid design for easier assembly; More stable and sturdy compared to others with separate frame and wire. Easier DIY installation with step-by-step diagrams. Installation Template helps make plan; Heavy cold-rolled steel construction provides safety loading up to 450lbs. High quality screws provided. All hardware has gone through strict tests. Everything arrived in one box compared to other racks come with separate boxes. Dimensions: 72 in. L x 36 in. W x 40 in. H; Height adjustable from 22'' to 40''.