3 minute read
New $ales ldeas... City of Los Angeles Updotes Groding ond Grode-Stomp Rules
A series of typical segmental bowstring truss designs for spans ranging from 30' to 100" and utilizing a spacing of 16' o.c. is available from Timber Engineering Company. The series consists of a total of eight typical designs in span increments of 10'.
Prepared for a total live and dead load of 45# p.c.f., the designs are based on the Teco timber connector system of construction and use Teco WedgeFit split rings throughout. Complete information as to stress diagrams, dimensions, and lumber and hardware requirements is provided on each design.
The versatility of timber and the excellent timber design data available make it possible to build almost any type of roof truss with wood. The designs made available by TECO are only a few of over 200 typical timber truss designs prepared by the engineering and research organization for the guidance of architects and engineers. Those desiring the Teco bowstring truss design series may obtain same by writing Timber Engineering Company, 1319' 18th Street, N.W., Washington 6, D. C. Ask for "Teco Bowstring Series."
Something to look up to-a ceiling of California redwoodis the subject of a new fourpage illustrated data sheet by the California Redwood Association. Ceiling designs by noted architects for homes. schools and commercial structures in narrow and wide patterns, lapped courses, board-on-board, bevel siding, angled board, and plank and beam construction show off the versatility of California redwood. The data sheet also points out that redwood adds a mellow warmth to any room in the house, has a remarkable degree of dimensional stability, high insulation value, resistance to fire, and gives adequate sound absorption for all but the most intense noise. The use of redwood plank ceilings with post-and-beam construction provides warmth, natural beauty and textural interest. Single copies of the new data sheet may be obtained without charge (volume orders at cost) from the Dealer Service Library, California Redwood Association, 576 Sacrarnento Street, San Francisco 11, California. Ask for Data Sheet 3A7-3, Redwood Ceilings.
For a free copy of Cutting Trends, or further information on grinding wheels and machine knives, write direct to SimondsWorden-White Company, ll0l Negley Place, Dayton, Ohio.
Permission by the City of Los Angeles to use sheathing re-sawn from (Coast) Standard & Btr, DF or Hemlock Dimension with every second piece grade-stamped expired June 30. This also applies to re-sawn (Inland) No. 2 Dimension DF & Larch.
Permission by City of Los Angeles to use re-sawn boards from Utility Grade Dimension with Grade Stamp on every other piece has been extended to December 31st. After that date, or effective with the 19@ I-os Angeles Building Code, every piece of lumber, whether re-manufactured or not, must be Grade-Stamped.
Utility Grade is allowable in the City of Los Angeles until December 31st for roof sheathing when used on solid roofs and spans do not exceed 24". The construction industry now has six months to prove to the Building Department that Utility Grade is adequate for this purpose, which it can do, if the privilege extended is not abused, reports the Southern California Retail Lumber Assn.
Referring again to "Allowable Spans," City of Los Angeles, in addition to Utility Grade sheathing as mentioned above, Utility Grade 2 x 6 T & G now can span 4'6" instead of 4'as heretofore.
The City of Los Angeles has authorized a new size in planking-"lf net minimum seasoned thickness." Much trouble has been encountered lately in odd-thicknesses of roof decking, especially with l9/16" green, which is presumed to be l rl net when seasoned.
The City of Los Angeles has taken the position that 1l net dry is acceptable, while ll or less GREEN IS NOT.
Western Pine Association already has stamps showing ll. West Coast Lumber Bureau will soon have this stamp for use of local inspectors.
MANUFACTUR,ERS AND WAR,EHOUSE WHOLESALERS
7,500,000
The Building Departments in areas outside of Los Angeles County report several instances where unauthorized grade stamps have appeared on lumber, resembling those used by grading agencies approved by the American Lumber Standards Committee, Washington, D.C.
The lumber was therefore turned down, causing the contractor and dealer trouble and considerable expense, since a grader from an authorized agency had to be brought to the job to grade the lumber, and in cases where lumblr was in place that did not meet grade requirements, certain pieces had to either be removed or in some cases, doubled up.
The SCRLA suggests you watch your lumber reCeipts, and if it is not properly grade-stamped by an authoriZed grading agency, that it be refused. Olherwise, some of the p{o.!t on.sales you had counted on may be eaten up by aodltlonal and unnecessary exDense.
The SCRLA furnished'grade-stamp facsimiles to all of the Building Departments throughoul the Southland, and it appears from the response thatlt gave them the information in one package that they wanted, but could not get from other sources. Many of the Building Departments have called upon the SCRLA for hundredi of ldditional copies. of these instrurnents, so as to stress their grade- stamping requirements in the field they serve.
Fqirhurst Moves to long Beoch
The Fairhurst Lumber Company has moved its Southern California sales office to @4 Ocean Center Building, 110 West Ocean Bl-vd., reports Mike Walsh, local managei. The former sales office was in Beverly Hills. The new tJlephone will be HEmlock 5-8948. Representative Walsh. whb has headed the Southern California sales for Fairhurst for the p_asl2g _months, announces that Thom Philips has joined the Fairhurst forces, primarily to spur the sales of redivood, on which Fairhurst Lumber plans to train its big promotion guns.
