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Timber glossary: wood terms explained

What do GK4, KD, fine-sawn or centre-to-centre mean? Over 60 timber terms in plain language, with what they mean for your project.

Short answer: this timber glossary explains the terms you come across when buying timber and building materials: wood species, use classes, sizes, machining and the parts of fences and decks. For each term you can read what it is, what it means for your project and where to read more.

The explanations match the range of Houthandel Jan Sok in Meppel. If a wood species is not in stock, such as bangkirai or larch, we say so, with the alternative that is ready to go. Missing a term? Ask us.

More background: wood species, durability classes and ground contact and timber sizes.