Common Lumber Defects and How to Identify Them

While it is one thing to embrace the unique appearance and charm of natural wood, it is yet another to purchase lumber with imperfections and inconsistencies so profound that they negatively affect its visual appeal and possibly even its structural integrity.

There are growth defects such as knots, which if large enough can affect the strength of wood; shake, which occurs around the ring; and rind galls which can come from improper branch cutting. The proper handling of lumber is also important, including the way it is cut, dried, stacked and stored – all of which can lead to defects.

Cracks and splits can occur when wood becomes too dry too quickly. If lumber is stored in a moist or otherwise less than stellar environment, it may develop mold and mildew build-up, discoloration from water staining or weathering and even fungi or insect infestation. Poor handling of wood can also lead to warping such as bowed or twisted pieces of lumber. Lumber with missing or thinner portions, referred to as wane, can also obviously be problematic.

When shopping for lumber, check the wood’s surface for defects, such as small knots, which could worsen over time and streaks indicating mold, mildew or decay. Finally, here’s the best tip…shop your lumber at a reputable lumber yard, such as M & M Enterprises, with decades of experience and family-owned dedication, for the highest quality results!