Scott McVicker is a structural engineer in Palo Alto, Calif. Visit his World Wide Web Site at mcvicker.com.
Is plywood sheathing installed horizontally (perpendicular to the direction of the studs or rafters), with joints staggered, stronger than panels that are installed vertically?
Q: Does OSB sag more than plywood when installed horizontally over 24-inch-center rafters?
In this JLC classic, Scott McVicker explains some of the common terms engineers frequently use.