The information listed in the table below is based on the
Cedar Shake and Shingle Bureau, (CSSB-97) grade revisions for all Western
Red Cedar Certi-SawnŽ 24" Tapersawn Shakes. It is intended to be used a
guide for product use and grade selection only. Thank you.
| Tapersawn
Shakes |
24 INCH |
| |
|
No.1
Grade |
No.2
Grade |
No.3
Grade |
| WOOD: |
Clear Area
- above the butt |
All |
12" |
na |
| |
Sapwood |
1/8" |
1" |
Yes |
|
Flat Grain
|
No.1 Grade |
20% |
Yes |
Yes |
| |
Premium Grade |
None |
- |
- |
| |
Standard Grade |
Yes |
- |
- |
| |
Checks & Feathers |
Down to 22" |
| |
Defects Size |
None |
1-1/2" |
- |
| |
Total Defects |
None |
1/2 width |
- |
| LENGTH: |
Maximum |
27" |
None |
None |
| |
Minimum |
22" |
22" |
22" |
| WIDTH: |
Maximum |
None |
None |
None |
| |
Minimum |
4" |
4" |
4" |
| |
Undersize % |
5% |
10% |
- |
| |
Min. Undersize |
3-1/2" |
3" |
3" |
| |
Off Parallel/Square |
5/8" |
5/8" |
5/8" |
| THICKNESS: |
3/4" Shakes |
3/4" |
3/4" |
1/2" |
| |
Under Size % |
10% |
10% |
- |
| |
Under Size Min. |
11/16" |
11/16" |
- |
| |
5/8" Shakes |
5/8" |
5/8" |
1/2" |
| |
Under Size % |
10% |
10% |
- |
| |
Under Size Min. |
9/16" |
9/16" |
- |
| COVERAGE: |
5 bundles per square |
min. 268 lineal inches on grade per bundle |
| PACK: |
18" wide frame |
9/9 pack, 5 bdl sq. |
| |
|
|
Guide to CSSB-97 Grading Rules
Conforms to UBC 15-4, CSA 01118.1-97, CSSB-97
