Ck Boards Cupping

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.

Ck boards cupping.

And i m okay with that well i m okay with the physics of it at least. Bark side up or down on exterior wood decks stairs. In the case of the stair tread shown just above it has a concave upper surface. 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.

Don t install a deck board with a visibly concave surface facing up. 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. But when it rains and the board warps water collects in the concave shape and pools there.

This article series explains the causes of cupping in wood boards wood board right side up advice for steps decks ramps. A single episode of wetting and drying should not be sufficient to damage your board. Look at each board. In this video i demonstrate how to flatten a board that has cupped with losing the least amount of material possible.

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. 6 tips to minimize deck board cupping and make your deck last longer. The main reason proponents like this method is ironically to reduce cupping. It seems they used two screws in each board at either end but all the joists in the middle only had one screw.

For more modest cases of cupping though you can definitely try gentler methods. By rebecca uk i ve recently had a large deck built by a professional decking company.