Can CLT panels be left exposed internally?

Yes, exposed CLT is one of the material's key architectural advantages. The timber surface provides warmth, acoustic absorption, and biophilic design benefits.

Yes, exposed CLT is one of the material's key architectural advantages. The timber surface provides warmth, acoustic absorption, and biophilic design benefits. However, exposed CLT requires 'visual quality' grading (no open knots, filled defects, sanded surface) which costs 15–25% more than standard structural grade. Fire regulations may limit the area of exposed timber — typically 40–60% of wall and ceiling area can remain exposed in residential buildings with appropriate fire engineering.

Why this matters

This question relates to CLT Modular Construction: How Cross-Laminated Timber Homes Are Built, 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:

→ CLT Modular Construction: How Cross-Laminated Timber Homes Are Built

Related questions

• What is CLT modular construction?
• How long does it take to erect a CLT home?
• How much does a CLT home cost compared to traditional construction?

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.