This section is from the book "The Building Trades Pocketbook", by International Correspondence Schools. Also available from Amazon: Building Trades Pocketbook: a Handy Manual of reference on Building Construction.
Member. | Balloon-Frame Building. | Braced-Frame Building. | Slow-Burning Construction. | ||
Area, 1,500 Sq. Ft. or Less. 2 Stories High. | Area, Over 1,500 Sq. Ft. 3 Stories High. | Area, 1,500 Sq. Ft. or Less. | Area Over 1,500 Sq. Ft. | ||
Corner posts | 2X4 spiked to 4X6 | 2X6 spiked to 6X8 | 2X6 spiked to 4X8 | 2X6 spiked to 6X8 | 10X10 |
Sills | 4X8 | 4X10 | 4X10 | 4X10 | 6X10 |
Plates | Two 2X4 | Two 2X6 | 6X8 | 6X10 | 6X10 |
Interties | 4X8 | 6X8 | 8X10 | ||
Girts | 1X4 | 1 1/2X4 | |||
3X4 | 3X6 | 3X6 | 4X6 | 2" to 3" plank for partitions. | |
Studs, wall and partition | 2X4 | 2X6 | 2X6 | 3X6 | |
Braces | 2X4 | 2X6 | 4X6 | 5X8 | 6X8 |
Sheathing | 1X9 | 1X9 | 1X9 | 1X9 | Two 1 1/2" |
Rough floor | 1X6 | 1X6 | 1X6 | 1X6 | 3-4 1/2 |
Finished floor | 1X4 | 7/8X4 | 1X4 | 1X4 | 7/8-1 1/4 |
Floor joists | 2X8 to 3X10 | 2X10 to 3X12 | 3X8 to 3X12 | 3X10 to 3X12 | 4X10 to 10X12 |
Rafters | 2X6 to 2X8 | 2X8 to 2X10 | 2X8 to 2X10 | 3X8 to 3X10 | 4X10 to 8X10 |
Tie-beams | 2X6 | 2X8 | 2X10 | 2X12 | |
 
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