What are the defects in timber?

Answer:
Timber can have various blemishes or defects, including shake, checking, wane, and splits. Most are accounted for in normal engineering reviews, but sometimes if the defect is large, it can cause a structural problem.
First answer by DougVTW. Last edit by DougVTW. Contributor trust: 3 [recommend contributor recommended]. Question popularity: 4 [recommend question].