Ck Boards Cupping

Wood develops a memory over time and that s why you see deck boards in the permanently cupped position even when they are dry when installed bark side up.

Ck boards cupping.

In the case of the stair tread shown just above it has a concave upper surface. So my foray into making end grain cutting boards for family this christmas has become a study in board cupping. First came the realization that a board can go through my planer cupped and still come out cupped. A single episode of wetting and drying should not be sufficient to damage your board.

And i m okay with that well i m okay with the physics of it at least. By rebecca uk i ve recently had a large deck built by a professional decking company. This article series explains the causes of cupping in wood boards wood board right side up advice for steps decks ramps. It seems they used two screws in each board at either end but all the joists in the middle only had one screw.

Look at each board. But when it rains and the board warps water collects in the concave shape and pools there. Don t install a deck board with a visibly concave surface facing up. In this video i demonstrate how to flatten a board that has cupped with losing the least amount of material possible.

If possible i d have left this tread in the lumber yard and picked a different one. The ultimate effect may be flatter deck boards or less cupping in actual use. For more modest cases of cupping though you can definitely try gentler methods. Only a few weeks ago we began to notice the boards are cupping and twisting.

Bark side up or down on exterior wood decks stairs. This article explains the causes of wood board cupping and gives advice concluding that unless a board is already badly cupped or has a bad side when construction of outdoor decks and wood stairs you should place.