About This Attention: Wall shelving and hook ship in multiple packages, so please be aware that the packages may arrive to your home a day or two apart. Can NOT be mounted to metal wall. Suitable for wood studs/joists and concrete wall. Suitable for wood stud spacing of 18", 24" or 32" . High Load Capacity: The shelving can safely hold a total load of 600 lbs (300 lbs per tier). Each hook can safely hold 50 lbs. Easy Installation: Installation Template helps mount holes; Bubble Level helps get perfect horizontal location. (Assembly needed DIY project - Composition of two 1'x4' shelves per tier, 4 pcs Flat Hooks Included) Sturdy and Stable: The buckle design with velcros prevents the brackets from falling or bending. High quality screws provided. All hardwares have gone through strict Overview Room Type : Garage Number of Shelves : 2 Special Feature : Wall mount Product Dimensions : 24"D x 48"W x 24"H Style : Modern Finish Type : Unfinished Brand : FLEXIMOUNTS Product Care Instructions : Wipe with Dry Cloth Size : 2 pack-2x4 ft w/ 4 hooks Weight Limit : 400 Pounds Material Metal : Mounting Type Wall Mount : Material Metal : Mounting Type Wall Mount Shelf Type Metal : Shape Rectangular : Shelf Type Metal : Shape Rectangular