1.   As the saw blade penetrates the wood, the weight of the branch squeezes the blade, and it becomes jammed.

2.   A sealer normally penetrates the wood without a shine or film.

3.   Excessive moisture can penetrate the wood, causing rot and decay.

4.   I was walking away when a soft rap penetrated the hard wood.

5.   If the new stain beads up and does not penetrate the wood, you cannot use it because the old stain is still making the finish waterproof.

6.   Once they penetrate the wood, they can warp the boards and leave stains.

7.   The consolidant is a thick liquid that penetrates the wood and reinforces the fibers.

8.   The putrid waters nourished sulfur-reducing bacteria whose byproducts penetrated the wood and made it poisonous to underwater funguses and rot, said Lovisa Dal, deputy conservator.

9.   This usually means that the stain is only in the finish and has not penetrated the wood.

10.   This raked profile will shed water that might otherwise collect around the post and penetrate the wood, causing rot.