Hey Folks, In response to changing to the new plastic bunks from the wood ones on our Hydraulic Boat Hoist...  After several requests over the past few years from customers and dealers for a plastic bunk, we took a long look at all the different styles of bunks that lift builders use, including swivel and fixed. Some folks use small V bunks in the front and 2 separate pads 2 foot long in the rear.  Other manufactures use a 2 x 10 laid on edge (1.5" of surface area x 10').  Good quality fiberglass and today's bulkhead design allows builders to even use wood blocks to support the front V of the bow (point loading) and 2 blocks for the rear to store or show their boats without adverse effect...

Factors that came into effect were customer acceptance of course and material and tooling cost as well as labor...