lVill

be Approved in California School Construction

The use clf No. 2 l)ouglas 6r boards and climensiotr lutnber s.ill henceforth be approvecl in California school construction rvhen the structure has lleen designecl to incorporate this grade :Lppropriatell', it has been statcd by thc biti.io.t of Architecture of the Department of l'ublic Works, State of California.

I l3y act ot- the California State l-egislltture the Division 'of Architecture has since 1933 h:L<l the cltrty of ascert:Lining ihe structural aclecluacy <,rf a1i pulllic school builclings consthrcted l'ithin the state. In executing this clutl' the l)ivision has cstablished rttles. regrrlations, specitications ancl rvorking-stresses ior materials tlf constrttctiorr.

l'pior to the l'zrr. r'vhen Douglas fir lurl.rber n'as usecl, the No. .1, grade of boards and dimension u'as the minimum accepterl. During the u'ar material sl-rortages made it necessarv to pern.rit the use tlf No. 2 as a minimunl, but this r.",as ievoked after the u'ar and the original specifications rvere again Put in force.

It has since been determined that a structure can lle adequately designed for the use of No. 2 Douglas fir lurnber, partially because a revision of the grading rules has permittecl the assignment of definite lvcirking-stresses to No. 2 Dimension.

The West Coast Lumberttren's ^\ssociation point out that engineers and architects u'ill have greater freeclorn in de- signing strtlctures, u'ith resultant econrlmie s, r'vhen the lon'er but adequate grade is permitted' ln order to inforrn the pulllic that No.2lumber is u'hollv suitable for the purPose, ;rlthough uot as fine in aPPearance as the higher gracles, definite steps rvill lle taken to supply the public u'ith this information. The West Coast Lumbermen's Association is coolterating in this educational campaign bv r.nakitig posters available, through retail iumber <lcalers or from tl're Association offices, u'hich r'vill reacl as foliolvs : TIIIS RUII,DING HAS I]EEN DIISIGNIII) ANI) IS lltlING CONSTI{UCTIII) tlNDlrlt TIII! SUI'IIRVISION OF AN AITCHITIICT Olt STRUCITUI{AL ENGINITITR

TH]., LUNI]]ER USED HAS BI.]EN GI{ADE-N{ARKIT,D FOII YOUR PROTECTION

It has arnPle strength

It is <lurable

It is economical

It makes a SAFE structure

These posters are to be attached to the building frame or special sign board as soon as possible.

The t'orking-stresses {or Douglas fir, permitted by the Division of Architecture, <1o not conform $p,tlle workingstresses prrblishecl bv the lumber industry. The Division (Continued on Pagp 18)

"l call the signals for the team.

It is my responsibility to operate our plant on an even production basis in the interest of manage' ment and customers alike" t. J. WEIDNER, Generol Superinlendent for the post ten Yeors.

HARDWOOD AND SONWOOD ]UMBER IOR TVERY PURPOSE...

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