Grades: | NUMBER 1 GRADE: clear heartwood, 100% edge grain, no defects |
NUMBER 2 GRADE: clear face from butt end - 11" on 18-inch shingles and 16" on 24-inch shingles, limited sapwood and flat grain, limited knots and defects above clear portion. | |
NUMBER 3 GRADE: clear face from butt end -6" on 18-inch shingles and 10" on 24-inch shingles, unlimited sapwood and flat grain, limited knots and defects above clear portion allowed, tight knots and defects allowed in upper half. | |
Lengths: | 24-inch Royals, 18-inch Perfections, 16-inch 5X. |
Thickness: | 0.5-inch Royals, 0.45-inch Perfections, 0.4-inch 5X. |
Width: | Random, 4-inch minimum, (3-inch on Number 3 Grades) 14-inch maximum |
Roof Pitch: | 3:12 minimum |
24-INCH ROYALS | 18-INCH PERFECTIONS | 16-INCH 5X | |||||||
Pitch | No. 1 Grade | No. 2 Grade | No. 3 Grade | No. 1 Grade | No. 2 Grade | No. 3 Grade | No. 1 Grade | No. 2 Grade | No. 3 Grade |
3:12 or > | 5 1/4" | 5 1/2" | 5" | 4 1/4" | 4" | 3 1/2" | 4" | 3 1/2" | 3" |
4:12 or > | 7 1/2" | 6 1/2" | 5 1/2" | 5 1/2" | 4 1/2" | 4" | 5" | 4" | 3 1/2" |
Walls | 11 1/2" | 11 1/2" | 10" | 8 1/2" | 8 1/2" | 6" | 7 1/2" | 7 1/2" | 6" |
NUMBER 1 GRADE: clear heartwood, 100% edge grain, no defects |
TECON Timber formwork mainly includes BASE 20 Wall Formwork, Flex 20 Slab Formwork, Slab Table Formwork and BASE 20 Column Formwork. Combining different components such as film faced plywood, steel waler, and steel prop, all above column timber formwork can be assembled and ...
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