250 lbs High Load Capacity: Our garage wall shelving is made of high-quality metal, weighing 38.6 lbs. Each shelf has a maximum load capacity of 250 lbs, making it convenient for hanging tools. Installation Hole Spacing: 32 inches. Reinforced Construction: The garage shelving wall mounted is constructed entirely of metal with a sandblasted surface, featuring reinforced front-side beams and two additional steel wires measuring 47.64 x 24.41 x 7.87 inches (W x D x H) to accommodate more items. Installation Made Easy: The garage wall shelves employ a modular assembly design. Simply place the hole positioning paper, install the brackets, tighten the screws, and you're good to go. The lower tool rack can be separated from other organizers according to your specific needs. Everything You Need: The package includes positioning paper, hooks, cable ties, etc. This garage shelving heavy duty wall mounted is suitable for installation on concrete or wooden walls