I love the quality construction of the unit. We cannot wait to use it. It is designed to fit a lumbar company 4 x4 which is actually closer to 3.5 x3.5 inches. Unfortunately the pavilion that we put up ( a kit from Temu) has true 4 x 4 posts (we didn't realize before we ordered). We plan to use a router and reduce the diameter of the post at the height we wish to place the table so that it will fit.