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Kiln-Dried

When the same stud is Kiln-Dried to the prevailing 19 per cent average moisture content (no maximum limit) it will contain about two pints of water. This makes for good lumber, but it no longer fits today's needs in engineered-type building.

Engineered 4-Square

A Weyerhaeuser Engineered 4Square Kiln-Dried stud will contain about one pint of water. This is close to the moisture content the wood will attain in service and it's ideal for all types of precisely engineered wood construction.

Why the smaller size?

There's a place for green lumber. Weyerhaeuser has alwavs made it and probablfl .a.lways will. However, _the size of a lumber framing member should be directly related to the moisture content the lumbei will attain in use.

Green lumber dressed jg 75/a' will shrink down to about 112,, when it finally dries- out. Since lew Engineered 4-Square Xil"-n.i"a lumber -is pre-shrunk at the mill it doesn't make sense to use the larger size when the l/2" thickness will meet the requirements of all existing span tables.

How to order Engineered Lumber

For complete service and additional information contact vour r representative at the area office neirest you or write us at Box 8-100, Tacoma, Washington.