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Show DOUGLAS Fm IS RECOMMENDED REC-OMMENDED The Woat oCast Lumbermen's association as-sociation announcos that the underwriters under-writers laboratories of Chicago, main tatned by tho National Doard of Flro Underwriters has recontly mado tests of tho flro roslstcnt properties of Douglas fir at tho request of the tire door manufacturers. As u result of this tail the underwriters under-writers laboratories hnvo recommend cd that Douglas fir be listed as standard for the making of cores in tin clad flro doors. As a result of this test by tho ln-jcuranco ln-jcuranco Interests It Is anticipated that a now field of market exploitation exploita-tion will bo opened tto fir manufacturers. |