. Bulletin. Forests and forestry -- United States. 21 Substituting the values for these quantities, we have >'»X 98,600X12 1,000X289 where the height is assumed for trial. This will make three stringers under each rail, 8i by 17 inches in cross section, posts, caps, and sills all being 12 by 12 inches in cross section. The following factors of safety are indicated by their practice: Stringers in cross breaking Stringers in deflection ^ span Stringers in bearing value 2. 7 Cap, bearing value under stringers Cap, bearing value under posts Posts crushing endwise :*'. 6 '3 StrsI
. Bulletin. Forests and forestry -- United States. 21 Substituting the values for these quantities, we have >'»X 98,600X12 1,000X289 where the height is assumed for trial. This will make three stringers under each rail, 8i by 17 inches in cross section, posts, caps, and sills all being 12 by 12 inches in cross section. The following factors of safety are indicated by their practice: Stringers in cross breaking Stringers in deflection ^ span Stringers in bearing value 2. 7 Cap, bearing value under stringers Cap, bearing value under posts Posts crushing endwise :*'. 6 '3 StrsIongLeafPine Cypress PostsXongLeaf -Sills. ReoCypress. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Division of Forestry. Washington : G. P. O.
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