In basement barns the joist bearer, A of Fig. 1, is made to extend lengthwise of the building, and the bents of the superstructure being placed crosswise we find the sill of a bent of a superstructure as represented at F F. But in ground barns the joist bearers extend crosswise of the barn, and the post B is permitted to extend up through the joist bearer about 7 inches. Two posts are then spiked to this projecting portion, one on either side, and thus again the brace shown in Fig. 2 may be inserted if thought necessary. If, however, the braces are properly inserted in the side walls of the frame the short braces may safely be omitted in ground barns.
[Illustration: Fig. 1.—Showing Method of Bracing.]
[Illustration: Fig. 2.—One Form of Brace Employed.]
The following is a bill of materials for a plank frame basement barn, 36 × 60 feet, basement 8 feet, with wall on one side, 16-foot superstructure, with a 23-foot bay at each end and a 14-foot driveway in the middle. Roof one-third pitch, plain gable, decks over driveway if permissible. Interior posts of basement to stand on stone pillars.
BILL OF MATERIALS. Basement: First Bent. Ins. Ins. Ft.
12 posts 2 × 8 × 8 4 door posts 2 × 6 × 8 6 post fillers 2 × 8 × 8 4 nailers 2 × 6 × 12 1 nailer 2 × 6 × 14 3 joist bearers 2 × 10 × 60 (may use 14s and 24s.)
10 braces 2 × 6 × 10 Bents 2, 3 and 4 similar.
12 posts 2 × 8 × 8 18 post fillers 2 × 8 × 8 20 braces 2 × 4 × 6 3 joist bearers 2 × 10 × 60 Ends of Basement.
4 nailers 2 × 6 × 18 (or eight 2 × 8 × 9)
4 nailers 2 × 8 × 18 16 braces 2 × 6 × 10 56 braces 2 × 4 × 6 28 brace blocks 2 × 4 × 16 Superstructure: Two End Bents.
12 nailers 2 × 6 × 18 4 beams 2 × 8 × 36 (or eight 2 × 8 × 18)
20 posts 2 × 8 × 16 10 post fillers 2 × 4 × 16 8 braces 2 × 6 × 18 8 purlin posts 2 × 8 × 8 8 braces 2 × 4 × 9 2 gable ties 2 × 6 × 18 6 stiffeners 3 × 6 × 16
4 sills 2 × 8 × 2 8 posts 2 × 8 × 16 8 purlin posts 2 × 8 × 24 (or twelve 2 × 8 × 16)
4 roof supports 2 × 8 × 22 4 sub-supports 2 × 6 × 17 4 collar braces 2 × 12 × 5 8 stays 2 × 4 × 3 4 ties 2 × 8 × 8 4 ties 2 × 6 × 5 4 ties 2 × 6 × 4 4 braces 2 × 6 × 8
4 sills 2 × 8 × 2 8 posts 2 × 8 × 16 8 purlin posts 2 × 8 × 24 4 roof supports 2 × 8 × 22 4 sub-supports 2 × 6 × 17 4 collar braces 2 × 12 × 5 8 stays 2 × 4 × 3 4 ties 2 × 8 × 8 4 ties 2 × 6 × 5 4 ties 2 × 6 × 4 4 braces 2 × 6 × 9 8 joist bearers 2 × 8 × 8