Lumber

DIY Encyclopedia

Used to conceal joints when plywood panels or boards meet. Many plywood panels are v-grooved and hide the joint. If they’re not, use this...

Sometimes referred to as window or door casing. Used around windows or doors for trim. Styles include colonial, oval, R2E, ranch and...

Used to protect and decorate the outside corners of an interior wall. An alternative to clear plastic...

Installed at the corners where two runs of molding meet. Makes installation easy, as installer doesn’t have to cut a miter joint. Styles...

Plywood construction acceptable for outdoor use. A popular grade is A-C EXT, which has one paintable surface and can be used outside. Type...

The trim used where the floor and wall meet. The most complete is a combination of a base, base shoe and a base cap on top. Often, just a base...

Made from standard dimension lumber glued face to face. Lengths are as long as 150’, using finger-jointed materials. Frequently used as...

Also known as wood fiber substrate. Made from wood chips that are mechanically reduced to wood fibers and then bonded together into panels...

Composed of thin OSB or plywood web that is bonded to the top and bottom flanges of lumber or LVL. Typically 9-1/4” to 30” deep and up to...

A laminate made from thin sheets of wood called veneers. Layers are glued perpendicular to the next, creating a strong, stiff panel. Varying...

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