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� <br />PLI-.iOIST <br />St. Regis Paper Company <br />733 East llth Street <br />Tacoma, Waehington 98401 <br />L. Sub ec[: S[. Regis PLI-JO15T <br />I1. Descr��tlon: <br />(A) Ger.erul: The St. Regis PLI-.1015T is an all wood I-beam Joist <br />made from lumber flangee and a plywood web. The flunges are <br />2 X 4 nominul dimenelon net 1.5 inch�s by 3.5 inches. The web <br />13 1/2 incti plywood. <br />The individuxl p:ywood eections ure butt-jointed and n 3-inch wide <br />1/2 1nc1� thick plywood gusset is glucd and nASled over the face <br />of [he jalnt to form a con[inuoue web. The flange to veb connec- <br />tion is made by gluing the plywooct web into n groove cu[ al�ng <br />[he center of the wide face of the lumber flange. <br />(B) Pabricntion Procedure: The PLI-JOIST mnnufnccuring ie a <br />con[inueus proceas. Dry, muchine s[ress rated flange material <br />(2 R 4) is vieuully grad�d to rules established by St. Regis prlor <br />[o checking moie[ure content and fln�;er end juin[ing to [he <br />deslred length. The flange ie next cnnveyed to a separate machine <br />which cucs a groove along the widc face to accept tlie plywnod <br />we3. The flunge ie [l�en conveyed [o nno[her mndiine where i[ ie <br />fed ineo a poaition to become tl�e top and bottom flanges oE the <br />PLl-JOTS'C. <br />The pre-cu[ plywood web is now fed into posltion be[ween [he <br />£langas M'I1C!!' it is s�aoothed .nd tapered to iic irto [he groove <br />Sn the fl.in�e. While applying n conetant end unlform flow of <br />glue to rh� pl•;wood wob and thc flange gr�cve, the [wo ilanges <br />nnd plywoad web are brought r..•de[her in e continu��ue mnuner. <br />Preseure Ss epplied P.e the fnrmed me.mber pasees f.hrough the R.F. <br />curing area cmd i.s Crl�ned [n length. Once E"�.ifficl.en[ly cured, <br />ench ,joist Tasses [hrough a proof loading [est nrca deaigned [o <br />detect any manufac[uring tlaws. <br />� <br />