Partitions Of Timber. When the spaces between the various timbers forming the partition are filled up with bricks, see a, fig. 228, it is termed brick-nogged; if the spaces are not so filled up, but left void, and these and the timbers first covered with lathing, see b, fig. 228, and the laths then plastered, the partition is termed a " quarter" or "quartering." In fig. 230 we illustrate the various parts of a partition, a a a, the "sill;" b b b, the "head;" c c c, the "posts" or "quarterings;" d d, the "struts" or "braces;" e, the "head at a door opening;" f f, the "filling-in pieces" or "single quarterings." Partitions are of various kinds. Fig. 229 illustrates part of one of the simplest forms, in which there are only "sill," a a; "head," b b; "post," c; and "filling-in pieces," d d; this is called a "framed partition." Another simple form of partition is shown in fig. 227, where longitudinal ties a b, are used; to which the boarding c c is secured; this being papered or painted; d d the side, e e the head,f f the posts. In figs. 228 and 230 we give what are called "framed and braced " partitions. Fig. 230 is a "framed and braced partition," as is also the upper part of fig. 231. When folding doors or a large opening in the centre of a partition are required, as at a in fig. 231, or where the partition is to support a second partition above it, as in the same figure, the lower partition is to be " trussed " in the same manner as a roof is trussed (see "Hoofs" in next chapter); and the partition is then termed " framed, braced, and trussed," or simply a "trussed partition." In fig. 231, the trussed part is at g g, h h, i i. The other parts are the same as shown in fig. 230 of this chapter. The "truss" in fig. 231 is what is called a "queen-post" truss (see "Roofs"); g g corresponding to the tie beam; h h the "queen posts; i i, the "struts" or "braces;" j j, the "straining beam." In fig. 232 a "king-post truss" is illustrated, in which a corresponds to the " king post," b b to the "tie-beam," and c c to the "struts" or "braces." Partitions are sometimes made to rest upon the floor joists, but this should be avoided in good and sound construction; as, if done, the joists in settling, which they do in all cases more or less, will allow the partition to drop, and the result will be a crack or joint opening at the line of the cornice, or where the plaster of the partition joins that of the ceiling. The best plan is to support the upper partition sill upon upright blocks or " puncheons" of wood, same thickness and depth as the flooring joists, these blocks resting upon the head of the partition below, as illustrated in the lower part of fig. 232; where a a is part of " head " of lower partition; b b, part of "sill" of upper do.; c c, "flooring joists;" d, "puncheon" or block of wood, which may be placed between the joists, or close to them, as at e. Complete settlement of all the timbers should be allowed to take place before plastering of a partition is begun to.

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Fig. 227.

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Fig. 228.

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Fig. 229.

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Fig. 230.

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Fig. 231.

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Fig. 232.