DOUBLE SERVICE DOUBLE FACILITIES

Double Dependability

HARDWOOD DIVISION: 3855 E. Woshington Blvd. los Angeles 23, Calif. ANgelus 3-68U

SOFTW^ND DIVISION: 4230 Bondini Blvd. Los Angeles 23, Cslif. ANgelus 2-4148

FINE DOMESTIC AND IMPORTED HARDWOOD FOR EVERY PURPOSE FOR THE RETAITER Att SPECIES AND AtL GRADES OF PACIFIC COAST SOFTWOODS PLUS SPECIATTIES A FUtt IINE OF WESTERN RED CEDAR FROM BETTER MIttS

Emsr Tumber

(Contiwzd, lrom Page 8) grading and stamping are done in one compact operation which automatically takes into account knots, density, grain slope, growth rate, moisture content and other important factors. These would be difficult and time consuming to determine by other grriding methods. The machine will grade up to 1000 lineal feet per minute and handle lumber 2 inches thick and 4, 6. 8, l0 and 12 inches wide. Lengths may run from 8 to 26 feet.

As each piece of lumber enters the machine. it is deflected 5/16 oI an inch first in one direction and then the other. By measuring the force necessary to cause this deflection in each direction, the influence of bows, tapered and spike knots and other factors are eliminated. An instrument of the type used in seismographic equipment measures the force every six inches along each piece of lumber and transmits this information to a computor. The computor everages the measurements and activates a mechanism to apply the correct strength grade mark on the lumber. Lumber that not meet the standards of the lowest o'Everyone should benefit". says McKean about this new development. "Improved reliability and fewer grades will simplify design procedures for the builder and architect."

E-rating is not stamped. The CLT-I maehine is designed to be accurately cali. brated, checked and sealed by grading as5ociations.

The f-value, as well as the E-rating, is shown on the stamp. McKean said Potlatch has established, and many enginers now accept, the fact that modulus of elasticity (E) is closely related to fiber stress in liending (f ).

E-rating means improved uniformity of structural properties in each lumber grade. Engineers a.nd builders will be assured of the dependability of E-rated lumber, McKean adds.

EMSR lumber will reduce lumber- sizes required for some structural lumber applications, which means a savings to the user. In major developments of from 100 to l00O homes, this adds up to 95,0O0 to $50,000 in savings to the builder.

With this new lumber. architects can do much more precise design work with complete confidence in each piece of wood. The dealer will be able to be of more assistance to some of his customers without beinc a bona fide engineer. Instead of 4O pages"of tables for spans, as in the FHA Minimum Property Standards, one page with four tables of E- and f-ratings will suffice. And finally, the consumer will have greater confidence that each piece of structural lumber supporting his floor and roof has been rated and measured. This will assure him that it will carry the load it is supposed to carry and will do its job better.

Dectro-mechanical stress-rating for lumber means faster, more economical efficient Itrmber classification with the most accurate strength measurement yet devised. Yet, when in place and performing its assigned tasks, it can actually mean a savings to consumers and home owners . literally pay its way.

This is Jack Tweedy, veteran wholesale lumberman, who has estaDllshed sales offlces in Inglewood, Calilornia. Jack has been with Standard Lumber Company for many years. He has opened offices at 307 E. Regent in Inglewood to service retail dealers with Pacific coast forest products on a direct ship ment basis.

DEAI.ER DISPLAYS

(Continued, lrom Page l0 ) paneling. One side contains a literaturt: box and selected color samples to show some of the finishing possibilities. The sign has two dowel pins which are located in holes on top of the display when it is assembled. This maintains the position for stability when the unit sits on the floor. Another hole permits a full open position for wall mounting. The complete ,rrit fold, into an easily handled 2,x6, package and forms its own packing case. Lam-Loc Pecky Cedar carries a specialty item markup and can be used for both interior and