Hawksbury Timber Practical Timber Knowledge
Ask Shane Find a timber business

Calculator

Movement calculator

Timber takes moisture in and gives it back as the seasons turn — and the board changes size with it. Pick the movement class, enter the board width and the moisture swing it will live with, and plan around the range.

Wood movement calculator

Timber takes moisture in and gives it back as the seasons turn — and the board changes size with it. Pick the movement class, enter the board width and the moisture swing it will live with.

Board
mm

The width that will expand and contract.

Movement

Classes, not promises — boards vary within a species.

Quarter-sawn moves roughly half as much as flat-sawn. Not sure returns the full range for the class.

%

A UK heated room typically swings around 4–6% across the year.

Stuck on something?

Ask Shane

I don’t sell timber, but I’ll help you work out what you actually need and where to find it.

Ask Shane