Illinois Society of Architects · Chicago · leaf 455
In determining the size of knots, meanor average diameter shall be taken, or theeciuivalent of tlie above in grouped knotsat any one point. Shakes one-sixth thelength of the piece, small unsound knotsand a limited number of pin worm holes,well scattered, are inadmissible. SQUARE EDGE AND SOUND… … s § 454 MERCHANTABIiX: TIMBERS. May be either Dense or Sound Pine.All merchantable timbers shall be welllanufactured and conform to the Generalimber Specifications. Sizes under 9 on the largest dimension,hall show two-tliirds or more lieart sur-ace on one of tlie wide faces; ■sizes 9 andver on the…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
