[FrankC]

The strength is the same for a particular species whether it is treated or untreated, depending on the incisions treated wood may not be as strong as untreated. Surface incisions will have little effect, deeper incisions may weaken the material.

 

[FrankC]

What incisions?

George

The incisions they make in the wood so the treatment will penetrate the wood better, slits, holes what have you depending on the use of the material