Should I use stickers (spacers) between layers?

Yes, stickers (thin timber spacers, typically 25 × 25 mm or 25 × 50 mm) between layers are recommended for: cladding boards, decking, joinery timber, and any timber stored for more than 2 weeks. Stickers allow air circulation between layers, promoting even drying and preventing moisture trapping between boards.

Yes, stickers (thin timber spacers, typically 25 × 25 mm or 25 × 50 mm) between layers are recommended for: cladding boards, decking, joinery timber, and any timber stored for more than 2 weeks. Stickers allow air circulation between layers, promoting even drying and preventing moisture trapping between boards. Stickers must be: vertically aligned with bearers below; same thickness throughout the stack (to prevent distortion); clean and dry (not introducing moisture or staining); and spaced at maximum 600 mm centres for boards, 1200 mm for structural sections.

Why this matters

This question relates to Timber Storage on Construction Sites: Best Practice 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:

→ Timber Storage on Construction Sites: Best Practice Guide

Related questions

• How should structural timber be stored on a construction site?
• How long can timber be stored on site before use?
• What happens if timber gets wet on site?

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.