Nature of Roof.

Span in feet.

¦ie beam. Depth includes 3" for joints.

Principal Rafters.

Queen Posts.

Struts.

Straining beam.

§ Purlins.

10ft.

bearing.

Common Rafters.

Queen

Post.

Trusses

10' centre to centre.

32

4½"x4½"

4½"x4¾"

4½" x 2¾"

4½x2¼"

4½"x5½"

5"x7½"

2" x 3½"

34

4½" x 4¾"

4½" x 5"

4½" x 2¾"

4½"x2¾"

4½" x 6"

5" x 7¾"

2" x 3¾"

36

4¾" x 4¾"

4¾ x5"

4¾" x 2¾"

4¾" x 3"

4¾x6¼"

5" x 8"

2" x 4"

38

4¾" x 4¾"

4¾x5¼"

4¾" x 2¾"

4¾" x 3¼"

4¾x6¾"

5" x 8"

2" x 4"

40

4 ¾" x 5"

4¾"x5½"

4¾"x2¾"

4¾" x 3¼"

4¾" x 7i"

5" x 8¼"

2"x4¼"

42

5"x5"

5"x5½"

5" x 2¾"

5" x 3¼"

5" x 7½"

5" x 8i"

2" x 4½"

44

5"x5¼"

5"x5¾"

5"x2¾"

5"x3½"

5"x8"

5"x8½"

2"x4¾"

46

5¼"x5¼"

5¼"x5¾"

5¼"x 2¾"

5¼"x3½"

5¼"x8¼"

5"x8¾"

2"x5"