About this resource

What this site covers

The content here focuses on three areas where Polish conditions create distinct challenges for outdoor timber construction: choosing the right wood species, designing structures that handle deep frost, and applying weatherproofing that holds up across the full seasonal range from −20°C winters to +35°C summers.

Poland's frost penetration depth — typically 80 cm in central regions and up to 120 cm near the northeastern border — means that footings designed for milder climates will heave and shift. Similarly, wood species that perform well in maritime western European climates may not be appropriate where freeze-thaw cycles are frequent and temperatures drop sharply in January and February.

Editorial approach

Articles on this site are written to describe technical realities rather than advocate for specific products or contractors. Where Polish building standards are referenced — such as PN-EN 1995 for timber structures or PN-EN 1991-1-3 for snow loads — the intent is to give context, not to substitute for a licensed design professional's review.

All content is updated when technical guidance or observed field practices change. The update date appears on each page.

Sources and references

Technical content draws on publicly available standards, academic publications on timber durability, and established industry guidance from organisations including:

• Polski Komitet Normalizacyjny (PKN) — publisher of Polish national standards including PN-EN Eurocode series
• American Hardwood Export Council — reference on hardwood species properties
• Büsgen Institute, University of Göttingen — research on European timber durability
• REHVA — European climate and building performance data

Contact

Corrections, additions, or questions about content on this site can be submitted through the contact form on the homepage.