What spans can glulam achieve compared to CLT and timber frame?

Glulam beams can span 20–40+ metres in portal frame or arch configurations, making them suitable for sports halls, swimming pools, and large commercial spaces. CLT floor panels typically span 4–7 metres (one-way spanning) or up to 9 metres with post-tensioning or ribbed configurations.

Glulam beams can span 20–40+ metres in portal frame or arch configurations, making them suitable for sports halls, swimming pools, and large commercial spaces. CLT floor panels typically span 4–7 metres (one-way spanning) or up to 9 metres with post-tensioning or ribbed configurations. Timber frame floor joists span 3–5 metres with standard C24 sections. For spans exceeding 6 metres, glulam beams supporting CLT or timber frame floors is a common hybrid solution.

Why this matters

This question relates to Timber Frame vs CLT vs Glulam: Structural Comparison for Architects, which covers the broader topic in detail. Understanding this specific aspect helps architects, builders, and timber dealers make informed specification decisions.

For full context and additional technical detail, see our comprehensive guide:

→ Timber Frame vs CLT vs Glulam: Structural Comparison for Architects

Related questions

• What is the difference between timber frame and CLT?
• When should I specify CLT instead of timber frame?
• Is CLT more expensive than timber frame?

About this answer

This answer is part of the PuurModulair Knowledge Base — comprehensive timber specification guidance for architects, builders, and dealers across the UK, EU, and Scandinavia.