The wrought iron construction or welded steel is a strong structure for years to come. Bowed Top Tunnel Arch with 9 Cross Bars and bars on the Sides Comes apart into 3 pieces. It measures 70" wide overall at the top with the inside at 59" wide. The height is 8' with an inside clearance of 7' 10" at the arch's peak. The sides and top are 29" front to back.