MGP Windsor Cedar Wood Bridge, WGB-48, 28" w X 18" h X 48" l All cedar bridge decking boards are jointed by wood dowels and then glued and screwed to the cross span to prevent loose boards from heavy foot traffic as well as outdoor weathering The side rails and posts are secured to the bridges using galvanized bolts and nuts Traditional arch garden bridge design with standard cedar post caps. All post caps are finished with decorative round moldings at the base We use full 2" thick and 4" wide white cedar lumber to build our bridges span for heavy load capacity. 2x2 full size hand rails are boxed-in with the cedar posts. The boxed-in solid cedar posts are 3 1/2" by 3 1/2" wide. Finished with tung oil, the most stable natural oil in the market for outdoor finishing