Metriguard is the wood products industry leader in the design and manufacture of machine stress rating (MSR) equipment. MSR involves electro-mechanical testing of every piece of lumber, visual evaluation to determine piece grade, and daily quality control tests to verify the strength and stiffness properties of the final product. MSR offers producers improved profits by increasing grade recovery while reducing material waste. For component manufacturers and structural engineers, MSR offers the ability to construct stronger and more rigid roof and floor systems. MSR lumber makes such designs possible, because structural properties are characterized with more precision. For buyers of structural lumber products, this means more efficient use of the natural resource and increased confidence that the product will perform as required. Machine Evaluated Lumber (MEL) and E-rated (lamination grades) can also be produced with Metriguard equipment.

Many of Metriguard's products were developed from customer-identified needs and problems. Our innovations have enhanced traditional forest products testing equipment, and new equipment introduced by the company has become the industry standard. This specialized equipment is designed for testing and grading lumber according to the following physical properties:

Modulus of Elasticity --- The High Capacity Lumber Tester (HCLT) measures bending E, an indication of bending stiffness, by bending lumber first downward and then upward in two, four-foot bending test spans and measure the force required at each span to achieve a constant deflection. This measurement is used to calculate board stiffness and predict strength.

Ultrasonic Veneer Testing --- The Model 2600FX Ultrasonic Veneer Tester determines physical properties of dry veneer sheets by repetitively measuring ultrasonic stress wave propagation time as veneer under test moves through the machine at production line speeds.

Bending --- The Model 312 Bending Proof Tester measures edgewise bending modulus of elasticity (E) and provides a proof test for bending modulus of rupture (MOR). Lumber size capacity includes both North American dimension lumber sizes and metric sizes.

Tension --- MSR lumber is characterized by high design values of tension parallel-to-grain (F t). Tension testing machines can verify the (F t) values in a quality control program. The 400 Series off-line testers are available for research or for quality control testing of tension values. In-line testers can quickly and efficiently test every piece of material in the production line.

For more information about our product line, contact:

Metriguard Inc.
Attn: Sales Department
P.O. Box 399
Pullman, WA 99163
Phone 509-332-7526
Fax 509-332-0485
or E-MAIL sales@metriguard.com

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