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| S-P-F | Spruce-Pine-Fir : the classic combination of Quebec wood species |
| S-P-F-S | Spruce-Pine-Fir harvested in the United States |
| MSR | Machine Stress Rating (machine-graded lumber) 2100 Fb 1.8E : A particular category of machine-graded lumber–i.e., 2100 pounds of stress per sq. in.2 et 1,8 million de livres d’élasticité au po2 |
| S-DRY | Surfaced Dry (meaning lumber has been dried to a maximum of 19% moisture content) |
| S-GRN | Surfaced Green (meaning lumber has more than 19% moisture content) |
| STUD | Indicates a grade of lumber pieces permitting use in loadbearing interior walls |
| N. SPECIES | All approved species |
| CERT FGR JNT | Certified Finger Joint |
| SPS-1 | Special Products Standard – Fingerjoined Structural Lumber |
| SPS-2 | Special Products Standard – Machine Graded Lumber |
| SPS-3 | Special Products Standard – End-Trimmed Lumber for Wall Pieces (studs) |
| SPS-4 | Special Products Standard – Fingerjoined – Flange Stock Lumber |
| SPS-5 | Special Products Standard – Face-Glued Lumber – Vertical use only |
| SPS-6 | Special Products Standards (normes de produits spéciaux) – bois collé sur face |
| HRA | Special Products Standard – Face-Glued Lumber |
| NON-HRA | NON-Heat Resistant Adhesive – An adhesive that has not been evaluated to the elevated temperature performance of SPS |
