. ment in this truss to support the tie-beam, and to prevent it fromsagging, it is unfit for a span of more than twenty-five feet. 318 Woodwork, Carpentry, etc. To prevent the inconveniences resulting from the sagging of thetie-beam, a king-post (P) and struts (SS) may be introduced, as. shown in fig. 1. This form of roof is very well adapted for a spanof twenty-five a span of thirty to five-and-forty feet, the truss represented ^1 1^ Fig. 8. in fig. 8 is very well suited, and is now very commonly adopted byarchitects and bu
. ment in this truss to support the tie-beam, and to prevent it fromsagging, it is unfit for a span of more than twenty-five feet. 318 Woodwork, Carpentry, etc. To prevent the inconveniences resulting from the sagging of thetie-beam, a king-post (P) and struts (SS) may be introduced, as. shown in fig. 1. This form of roof is very well adapted for a spanof twenty-five a span of thirty to five-and-forty feet, the truss represented ^1 1^ Fig. 8. in fig. 8 is very well suited, and is now very commonly adopted byarchitects and builders. Floors, The timbers which support the flooring boards, and the ceilingof a room beneath, are called, in carpentry, the naked flooring. There are three kinds of naked flooring—single, double, andframed. Single flooring is that in which there is but one series of joists, asshown in fig. 9, where AAA are joists, and B the make a single floor as strong as possible, the joists should bethin but deep, sufl[icient thickness being always allowed for thenailing of the flooring boards. Two inches by six is the smallest Woodwork, Carpentry, etc. 319
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectenginee, bookyear1856
