This shrinkage completely obscures the expansion due to the heating.
Experiments made at the Yale Forest School revealed the effect of temperature on the crushing strength of wet wood.

In the case of wet chestnut wood the strength decreases 0.42 per cent for each degree the water is heated above 60 deg.

F.; in the case of spruce the decrease is 0.32 per cent.
The effects of high temperature on wet wood are very marked.
Boiling produces a condition of great pliability, especially in the case of hardwoods.

If wood in this condition is bent and allowed to dry, it rigidly retains the shape of the bend, though its strength may be somewhat reduced.

Except in the case of very dry wood the effect of cold is to increase the strength and stiffness of wood.