Why are there defects in wood like wormholes, mineral streaks, and knots?
A.Because wood is a product of nature, most character marks such as pinholes, mineral streaks, and knots are allowed in most grades. If a board is undesirable to you, tell your installer not to install it. All wood manufacturers state that the responsibility for final inspection and approval is that of the installer and consumer. Once the board has been installed, it is deemed to have been accepted by the installer and homeowner. No claim for an installed board that is visibly defective will be honored. Back to the top… Q.