NEWS & RESOURCES
An extremely narrow bevel along a cutting edge, which increases the sharpness angle for greater edge durability.
Medium density fiberboard, very stable underlay for counter tops etc. to be covered with laminate.
Lumber that has been evaluated by mechanical stress rating equipment; each piece is nondestructively tested and marked to indicate the modulus of elasticity. MSR lumber is also required to meet certain visual requirements.
The weight of water contained in wood expressed as a percentage of the weight of the oven dry wood. NOFMA/NWFA hardwood flooring is manufactured at 6 to 9 percent moisture content, with a 5 percent allowance for pieces up to 12 percent moisture content.
The equivalent fibre stress at maximum load. A constant used in structural design and obtained by loading pieces of wood to destruction. Modulus of rupture is an accepted criterion of strength, although it is not a true stress because the formula by which it is computed is valid only to the elastic limit.
An imaginary stress necessary to stretch a piece of material to twice its length, compress it to half its length. Values for the individual species are given in megapascals (MPa – equivalent to N/m2), and are based on testing small clear pieces of dry wood.