BS 5756:2007+A2:2017
$102.76
Visual strength grading of temperate hardwood. Specification
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 18 |
This British Standard specifies a method of strength grading temperate hardwood visually for structural use.
The permissible limits of characteristics for temperate hardwoods are specified for two visual strength grades for large size timber, designated “Heavy Structural Temperate Hardwood” (THA and THB), and two visual strength grades for smaller size timber, designated “General Structural Temperate Hardwood” (TH1 and TH2).
This British Standard applies to temperate hardwoods, graded for use in the United Kingdom.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Foreword |
| 5 | 1 Scope 2 Normative references 3 Terms and definitions |
| 6 | 4 Strength graded timber |
| 7 | 5 Grade requirements |
| 8 | 6 Text deleted 7 Measurement of characteristics |
| 9 | Figure 1 — Knots |
| 11 | Table 2 — Permissible limits for General Structural Temperate Hardwood (TH1 and TH2) visual strength grades (see Clause 5.2) |
| 12 | Table 3 Permissible limits for Heavy Structural Temperate Hardwood (THA and THB) visual strength grades (see Clause 5.2) |
| 13 | Figure 2 — Measurement of bow/ spring and twist Figure 3 — Wane |
| 14 | 8 Marking�) |
| 15 | Figure 4 — Example of a mark on visually strength graded hardwood |
| 16 | Annex A (informative) The control and supervision of visual strength grading operations |
