Standard Low Rail 16' Standard Low Rail 16' $2,142.00 SKU: Bridge SLR16 QTY: Standard Low Rail    16'/6 Post A busier design with four or six posts and a low single rail. Low profile, beautiful finials and carved posts are the highlights of this bridge. Bridges shown in photos are our 12 foot models and shown for illustration purposes only. Rail heights above walking surface are the same for all bridge lengths: Low Rail = 12 (Rails for decoration only) High Rail = 20 (Rails to protect a child) Double Rail = 35 (Rails an adult can use) All bridges are 35 wide at the walking surface and 42 wide overall.