Should timber cladding be installed horizontally or vertically?

Both orientations are structurally and aesthetically valid. Vertical cladding sheds water more effectively (water runs parallel to boards rather than pooling on horizontal edges) and is generally considered lower maintenance.

Both orientations are structurally and aesthetically valid. Vertical cladding sheds water more effectively (water runs parallel to boards rather than pooling on horizontal edges) and is generally considered lower maintenance. Horizontal cladding creates a more traditional appearance and can emphasise building width. The choice is primarily architectural, but vertical installation has a slight technical advantage for moisture management in exposed locations.

Why this matters

This question relates to Timber Cladding Systems: Types, Profiles & 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:

→ Timber Cladding Systems: Types, Profiles & Specification Guide

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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.