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AB GRADE BIRCH LOG
Production information
| Origin | Estonia |
| Grade | AB |
| Quality | Free of rot & broken pieces No insect damage 100% fresh cut logs Single sweep less than 2% per meter Red Heart less than 35% of the diameter. (otherwise deduct 2cm from the diameter) Dead knot less than 5cm, max one per meter No limit for live knot |
| Specification | Actual Length:2.8/3.1m Invoice Length: 2.7/3.0m Diameter 20 cm up with average 25 cm u |
| Monthly Supply | 10000 m3 |
| Measurement | Measure the diameter without bark on the smaller end of the log |