Slip Fence – this is a vertical fence six feet high using standard cedar dog-ear fence boards in a shadowbox style with aluminum posts (3″), two aluminum rails and an aluminum cap on the top. All aluminum is powder-coated specifically for outdoor use. The rails are screwed into each fence board holding each board in place to prevent warping or twisting. If a board needs to be changed out it can very easily by unscrewing the individual board and slipping another one in its place. Has approximately 90% privacy.