Antique Birch
| Sapwood | All components to contain |
| Heartwood | All components to contain |
| Colour variation | Intense |
| Worm/sugar marks | Unlimited |
| Worm holes | - |
| Mineral streaks | Unlimited |
| End stain | Unlimited |
| Burls | Unlimited |
| Knots | Sound : unlimited x 1" Repaired : 1/2", 10 Open : 3/8", 4 |
| Pin knots | 1/8" unlimited |
| Bark pocket | 1/8" x 4", 10 per face |
| Doze | Visible but firm |
| Components | 3 1/2" to 5 1/2" (random) |
| Bark pocket | 1/8" x 4", 10 per face |
| End splits/joints | 1/8" x 10" repaired 8 per face |
| Cracked grain | Yes |
| Rough cut | Yes |
| Birdseye | - |
| Matching | Spliced, random, plank look |
| Width | 50" (prior to trim) |
| Length | 99" (prior to trim) |
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Heritage Birch
| Sapwood | Max 10% |
| Heartwood | All components to contain 90% |
| Colour variation | Gradual |
| Worm/sugar marks | Unlimited |
| Worm holes | - |
| Mineral streaks | Unlimited |
| End stain | Unlimited |
| Burls | Unlimited |
| Knots | Sound : unlimited x 1" Repaired : 1/2", 10 Open : 3/8", 4 |
| Pin knots | 1/8" unlimited |
| Bark pocket | 1/8" x 4", 10 per face |
| Doze | Visible but firm |
| Components | 3 1/2" to 5 1/2" (random) |
| Bark pocket | 1/8" x 4", 10 per face |
| End splits/joints | 1/8" x 10" repaired 8 per face |
| Cracked grain | Light |
| Rough cut | Light |
| Birdseye | N/A |
| Matching | Spliced, random, plank look |
| Width | 50" (prior to trim) |
| Length | 99" (prior to trim) |
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