CLT Span Tables
There are CLT span tables along with size, strength and grade tables in our downloadable technical guide. It provides a table of spans achievable for varying thicknesses of CLT under roof and floor loads.
CLT – SPAN TABLES and strength grades
Note: this table is intended for preliminary design only, final calculations should be carried out by an engineer.
| Additional dead load G1,k (kN/m²) | Live load qk (kN/m²) | Span length | ||||||
|---|---|---|---|---|---|---|---|---|
| 3m | 3.5m | 4m | 4.5m | 5m | 5.5m | 6m | ||
| 1.0 | 2.0 | 90mm | 100mm | 120mm | 140mm | 160mm | 180mm | 200mm |
| 3.0 | 90mm | 120mm | 120mm | 140mm | 160mm | 180mm | 200mm | |
| 4.0 | 100mm | 120mm | 140mm | 160mm | 180mm | 200mm | 200mm | |
| 1.5 | 2.0 | 90mm | 120mm | 120mm | 140mm | 180mm | 200mm | 210mm |
| 3.0 | 100mm | 120mm | 140mm | 160mm | 180mm | 200mm | 210mm | |
| 4.0 | 100mm | 120mm | 140mm | 160mm | 180mm | 200mm | 210mm | |
| 2.0 | 2.0 | 100mm | 120mm | 140mm | 160mm | 180mm | 200mm | 220mm |
| 3.0 | 100mm | 120mm | 140mm | 160mm | 180mm | 200mm | 220mm | |
| 4.0 | 120mm | 120mm | 140mm | 160mm | 180mm | 200mm | 220mm | |

Contact Robin Nicholson for questions about:
- Timber types
- Structural engineering
- Design / cost
Telephone: 01363 891 363
Email: robin@bucklandtimber.co.uk