A YEAR. .

Publishes TechnicalData on Stud \(/alls

Washington, November 8,-In line rvith the current trend toward more attention to technical phases of construction, the National Lumber Manufacturers Association has publislied Wood Structural Design Data Supplement No. 7, "Stud Walls-Safe Axial Loads."

The eight page pamphlet, prepared by Richard G. Kimbell, Frank J. Hanrahan and Mary C. Ahern of the N.L. M.A. staff, is arranged for the convenience of architects, engineers and contractors, and is intended for ttse when the load capacity of stud rvalls must be accurately determined.

In addition to text material the publication contains: (1) a table of sa{e axial loads per linear foot of ivall, for dressecl sizes of studs, 7 to 12 Ioot lengths, spacecl 16 inches on center and supplemented by tables of factors for converting to other stud spacings, and to other sizes, a.nd for placement of brrdging; (2) table of rveight and board measure of stud wall per linear foot of wall rvith conversion factors for additional plates, bridging and fire stops; (3) a table of weights of stud wall coverings per linear foot and per square foot ol wall; (4) proceclure for design of stud walls ttnder other than the usual conditions; (5) a table of stu<l properties including nominal ancl S4S dimensions, cross-sectional area, and board feet and 'iveight per linear foot of stud; (6) a table of 1/d. ratios for various lengths a,ncl dimeusions of studs ; (7) a table of allorvable permanent unit loacls for various E's, C's and l/d ratios; (8) a table of total loacl per stud for various unit loads and sizes of studs, and (9) a table of total load per linear foot of stud r,vall for variolts total loads per stud and spacings of studs.

This supplement is tl-re latest addition to the f'o11ou'ir.rg Wood Structural Design Data series o{ publications:

Wood Structural Design Data Vol. l-(296 pages) Technical Data; Supplement No. l-Working Stresses for Structural Lumber (4 pages) ; Supplement No. 2-Bolted Woocl Joints (4 pages) ; Supplement No. 3-Maximum Spans for Joists and Rafters (16 pages); Supplement No. 4-Woocl Columns (24 pages); Supplement No. S-Wood Trusses (48 pages) ; Supplement No. 6-Timber Con,nectors, Design and Load Data (16 pages) ; Supplement No. 7-Stud Walls -Safe Axial Loads (8 pages).

Price of Volume l alone is $1.0O; Volume l rvith supplements is $1.25.

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