48.27in

This 4-tier lumber storage rack has a simple and practical design and is made of sturdy steel to ensure durability and load-bearing capacity. 1 4 Tier Lumber Storage Rack. Premium Materials: It is made of premium steel material with spray coating and high-temperature baking processes, which is sturdy, not easy to deform, rustproof, wear-resistant, impact-resistant, and has a long service life.