Fig. 186.

Fig. 185.
Figs. 185 and 186.—Elevation and Plan of Roof for Octagonal Summer-house.

The eight posts are 4 in. in diameter by 6 ft. 8 in. long. The short sill pieces are also 4 in. in diameter, while the middle rails are 3½ in. in diameter, and the plate is 3 in. by 4½ in. The floor and roof are constructed from ordinary scantlings.

The posts form a circle 6 ft. 6 in. in diameter. They are spaced about 2 ft. 3 in. apart, except the door-posts, which are 2 ft. 7 in. centres. Flats may be worked on the posts for the better fitting of the door, panels, and casements, and the top edge of the sill is also planed flat to receive the floorboards, and a rebate is formed for the 5/8-in. matchboard (see [Fig. 183]).

The sill and middle rails are scribed and stub-tenoned to the posts. The plate is halved, dowelled, and nailed to the posts. The joists are 2 in. by 4 in., and are notched to the sills ([Fig. 184]) and covered with 1-in. floorboards.