Cyclopedia of architecture, carpentry, and building; a general reference work .. (1912)
American School (Lansing, Ill.) · Chicago, American school of correspondence · leaf 324
tion may be from 1 to 2 inches square.On a tread 3 feet long, three of theseblocks should be used at about equaldistances apart, putting the two outsideones about 6 inches from the strings.They are glued up tight into the angle.First warm the blocks; next coat two adjoining sides with good,… … Fig. 3. Common Method of Join-g Risers and Treads.
Architecture · Building
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