These (6) 4′ x 12′ sections were used to give the customer more depth for mooring their boats. The 6′ x 4′ transition ramp has a built-in hinge to accommodate varying shoreline heights. The Legacy XP Thruflow panels on this dock are non-slip in wet or dry conditions. They allow 43% of sunlight to pass through uninterrupted and comply with conservation commission standards. The slotted design also helps to protect your dock against uplift caused by storm surges and strong winds.