Exam 23: The Framing Square

Using the rafter table, find the length of common rafters in the following problems. Express answers in feet and inches, correct to the nearest 1/8 inch. WINDOW SCHEDULE Symbol Item Quantity Type Window Rough Opening Unit Size Manufacturer No. Remarks A 1 1 Bay -9\nobreakspace\nobreakspace1/\times- -6\nobreakspace\nobreakspace1/\times-11\nobreakspace\nobreakspace1/ Jones 1580 Radius 1-4\nobreakspace\nobreakspace1/2 B 2 4 Sliding -7\nobreakspace\nobreakspace1/\times-6\nobreakspace\nobreakspace1/ -5\nobreakspace\nobreakspace1/\times-3\nobreakspace\nobreakspace1/ Smith 16285 Removable Sash C 3 1 Double Hung -10\nobreakspace\nobreakspace1/\times-1\nobreakspace\nobreakspace1/ -\times-1 Jones 1437 D 4 6 Double Hung -2\nobreakspace\nobreakspace1/\times-5\nobreakspace\nobreakspace1/ -\times- Jones 1467 E 5 2 Casement -\times- -1\times- Smith 782 If the pitch is 1/4 what is the rise per foot of run?

Using the rafter table, find the length of common rafters in the following problems. Express answers in feet and inches, correct to the nearest 1/8 inch. WINDOW SCHEDULE Symbol Item Quantity Type Window Rough Opening Unit Size Manufacturer No. Remarks A 1 1 Bay -9\nobreakspace\nobreakspace1/\times- -6\nobreakspace\nobreakspace1/\times-11\nobreakspace\nobreakspace1/ Jones 1580 Radius 1-4\nobreakspace\nobreakspace1/2 B 2 4 Sliding -7\nobreakspace\nobreakspace1/\times-6\nobreakspace\nobreakspace1/ -5\nobreakspace\nobreakspace1/\times-3\nobreakspace\nobreakspace1/ Smith 16285 Removable Sash C 3 1 Double Hung -10\nobreakspace\nobreakspace1/\times-1\nobreakspace\nobreakspace1/ -\times-1 Jones 1437 D 4 6 Double Hung -2\nobreakspace\nobreakspace1/\times-5\nobreakspace\nobreakspace1/ -\times- Jones 1467 E 5 2 Casement -\times- -1\times- Smith 782 If the rise is 12 feet and the span is 32 feet what is the rise per foot of run?

Using the rafter table, find the length of common rafters in the following problems. Express answers in feet and inches, correct to the nearest 1/8 inch. WINDOW SCHEDULE Symbol Item Quantity Type Window Rough Opening Unit Size Manufacturer No. Remarks A 1 1 Bay -9\nobreakspace\nobreakspace1/\times- -6\nobreakspace\nobreakspace1/\times-11\nobreakspace\nobreakspace1/ Jones 1580 Radius 1-4\nobreakspace\nobreakspace1/2 B 2 4 Sliding -7\nobreakspace\nobreakspace1/\times-6\nobreakspace\nobreakspace1/ -5\nobreakspace\nobreakspace1/\times-3\nobreakspace\nobreakspace1/ Smith 16285 Removable Sash C 3 1 Double Hung -10\nobreakspace\nobreakspace1/\times-1\nobreakspace\nobreakspace1/ -\times-1 Jones 1437 D 4 6 Double Hung -2\nobreakspace\nobreakspace1/\times-5\nobreakspace\nobreakspace1/ -\times- Jones 1467 E 5 2 Casement -\times- -1\times- Smith 782 What is the span of a roof if the pitch is 1/6 and the rise is 6 feet?

Rafter tables are used in determining the difference in lengths of jack rafters and also to aid in making side cuts on hip, valley, and jack rafters.

The framing square or steel square is made up of __________ arms.

The blade of the framing square is generally __________ inches long and 2 inches wide.

Rafter tables are used in determining the length of ___________ rafters (name three) for roofs of various pitches.

The smaller arm, called the blade, is normally 16 inches long and 1 1/2 inches wide.

The carpenter's ability to work with decimals and change them to fractions is very important when using a framing square.

When looking at the face of the square rafter table, the first number under the 9 inch mark is 15. This indicates that for each foot of run with a rise of 9 inches, the length of the _______________ is 15 inches.