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

robin nicholson

Contact Robin Nicholson for questions about:

  • Timber types
  • Structural engineering
  • Design / cost

Telephone: 01363 891 363
Email: robin@bucklandtimber.co.uk

A work in progress installation of CLT