Rail
A guard made of flat pieces of wood, or steel bars or rods, joined, and connected to the upper edge of the bulwark plating, or fitted upon the summits of stanchions surrounding an upper deck, bridge, poop, or forecastle, etc.
Strange name for the sides of the board - just think of riding on rails. Rail shape is an important factor in how a board performs. Hard rails indicate a steep-sided board with a fairly angular corner at the bottom, while soft rails are more rounded, with less of a well-defined release edge, or corner. 'Tucked-under' rails have the release edge further round
towards the bottom of the board.
The edge of the board. Also refers to plastic strips attached to the underside of the board.
1) The 1-2-4-7 or 1-3-6-10 spare; a "little rail" is the rail minus one of the end pins (1, 7, or 10). (picket fence) 2) The outside board of a lane, usually made of harder wood such as maple, which with wear may stand above the inner playing surface and cause balls to track along it rather than go into the channel.
