Timber | European Standard
Technical Specifications
European Standard
TIMBER
FF-A Class Timber Specifications
| Description: | Best quality that can be processed in beech logs. |
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| Uniform appearance on all four sides | |
| The resulting parts don’t have knots or red heart | |
| Storage or processing defects or signs of mold or insect holes are not allowed | |
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| Utility: | FF A-grade quality timber is used for furniture, windows, doors, trim frames, table tops panels, railings and steps for stairs, parquet floors and interior decoration and handicraft products. |
FF-AR Class Timber Specifications
| Description: | Best quality that can be processed in beech logs. |
|---|---|
| Uniform appearance on three sides, freshly sawn. | |
| No limits to red coloration. Red heart tolerated upon commercial agreement. | |
| Storage or processing defects or signs of mold or insect holes are not allowed. | |
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| Utility: | FF AR-grade quality timber is used for furniture, windows, doors, trim frames, table tops panels, railings and steps for stairs, parquet floors and interior decoration and handicraft products. |
FF-1 Class Timber Specifications
| Description: | On one side or edge 2 intergrown sound knots are accepted, limited to 25% of the pieces of the batch. |
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| Uniform appearance on three sides | |
| Knots must not exceed 1/4 of the width of the piece or 20 mm, red heart not admitted, bow tolerance 15 mm/m. | |
| Storage or processing defects or signs of mold or insect holes are not allowed | |
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| Utility: | FF 1-grade quality timber is used for furniture, windows, doors, trim frames, table tops panels, railings and steps for stairs, parquet floors and interior decoration and handicraft products. |
FF-1R Class Timber Specifications
| Description: | On one side or edge 2 intergrown sound knots are accepted, limited to 25% of the pieces of the batch. |
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| Red heart not admitted, bow tolerance 15 mm/m; | |
| No limits to red coloration. | |
| Storage or processing defects or signs of mold or insect holes are not allowed | |
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| Utility: | FF 1R-grade quality timber is used for furniture, windows, doors, trim frames, table tops panels, railings and steps for stairs, parquet floors and interior decoration and handicraft products. |
FF-2 Class Timber Specifications
| Description: | On each side and edge 3 intergrown sound knots are tolerated unless they are bigger than 1/3 of the width of the piece or 40 mm. |
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| Bow tolerance 15 mm/m. | |
| Red heart not admitted | |
| Storage or processing defects or signs of mold or insect holes are not allowed | |
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| Utility: | FF 2 – grade quality timber is used for furniture, windows, doors, trim frames, table tops panels, railings and steps for stairs, parquet floors and interior decoration and handicraft products. |
FF-2R Class Timber Specifications
| Description: | On each side and edge 3 intergrown sound knots are tolerated unless they are bigger than 1/3 of the width of the piece or 40 mm. |
|---|---|
| Red heart not admitted. Bow tolerance 15 mm/m. | |
| No limits to red coloration. | |
| Storage or processing defects or signs of mold or insect holes are not allowed | |
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| Utility: | FF 2R-grade quality timber is used for furniture, windows, doors, trim frames, table tops panels, railings and steps for stairs, parquet floors and interior decoration and handicraft products. |
Notes:
The minimum diameter is measured at the narrow, bark-free end.
When measuring the wood, for each 1 metre, 1 cm of length.
When the 30-39 diameter beech log is measured, 1 cm of bark will be subtracted from the measured value.
When more than 40 cm diameter beech log is measured, 2 cm of bark will be subtracted from the measured value.