Ck Boards Cupping

But when it rains and the board warps water collects in the concave shape and pools there.

Ck boards cupping.

So my foray into making end grain cutting boards for family this christmas has become a study in board cupping. In the case of the stair tread shown just above it has a concave upper surface. By rebecca uk i ve recently had a large deck built by a professional decking company. 6 tips to minimize deck board cupping and make your deck last longer.

It seems they used two screws in each board at either end but all the joists in the middle only had one screw. If possible i d have left this tread in the lumber yard and picked a different one. Look at each board. This article series explains the causes of cupping in wood boards wood board right side up advice for steps decks ramps.

Don t install a deck board with a visibly concave surface facing up. For more modest cases of cupping though you can definitely try gentler methods. And i m okay with that well i m okay with the physics of it at least. 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.

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. I ve had luck leaving the convex side of a slightly cupped board in a sunny window and the gentler warming drying of that side was sufficient to straighten the cup. In this video i demonstrate how to flatten a board that has cupped with losing the least amount of material possible. A single episode of wetting and drying should not be sufficient to damage your board.

The main reason proponents like this method is ironically to reduce cupping. The ultimate effect may be flatter deck boards or less cupping in actual use.