Hi-Rise Double Rail Bridges shown in photos are our 12 foot models and shown for illustration purposes only. Click on the pricing links to see the rail configuration and post quantity for other lengths. 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. Hi Rise Double Rail 6 Hi Rise Double Rail 6 $1,512.00 SKU: Bridge HRDR6 Hi Rise Double Rail 8 Hi Rise Double Rail 8 $1,764.00 SKU: Bridge HRDR8 Hi Rise Double Rail 10 Hi Rise Double Rail 10 $2,016.00 SKU: Bridge HRDR10 Hi Rise Double Rail 12 Hi Rise Double Rail 12 $2,568.00 SKU: Bridge HRDR12 Hi Rise Double Rail 14 Hi Rise Double Rail 14 $2,820.00 SKU: Bridge HRDR14 Hi Rise Double Rail 16 Hi Rise Double Rail 16 $3,072.00 SKU: Bridge HRDR16