How far can a glulam beam span?

Glulam beams can span from 6 metres (small residential beams) to over 30 metres (large public buildings) depending on strength class, section size, and loading. A typical GL24h beam at 140×400mm spans approximately 8.5 metres under standard roof loading.

Glulam beams can span from 6 metres (small residential beams) to over 30 metres (large public buildings) depending on strength class, section size, and loading. A typical GL24h beam at 140×400mm spans approximately 8.5 metres under standard roof loading. For spans beyond 25 metres, GL32h or GL36h grades with sections up to 200×1000mm are specified.

Why this matters

This question relates to BSH Glulam Beams: Span Tables, Load Capacity & Specification Guide, 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:

→ BSH Glulam Beams: Span Tables, Load Capacity & Specification Guide

Related questions

• What size glulam beam do I need for a 6 metre span?
• What is the difference between GL24h and GL28h?
• Is glulam stronger than solid timber?

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.