💚 Fit for 4x4 Posts: Designed for nominal 4x4 wood posts (actual 3.5"x3.5"), this bracket is compatible with engineered lumber and glued laminated timber. It securely anchors onto both wooden and concrete surfaces, providing steadfast support for various structures like fences, pergolas, mailboxes, and more in outdoor settings. 💚 Material Of 4x4 Post Base: Crafted from solid steel with a thickness of 2mm, Black Powder Coated, Rustproof and Strong. The smooth surface finish adds a touch of elegance while ensuring longevity. 💚 Deck Post Base： Used to support porch railings, pergolas, gazebos, fences, deck brackets, post brackets and mailbox post brackets. 💚 Unique design: This 4x4 post base features a unique spacer design that elevates the wooden post off the ground, preventing moisture seep.