Miedema Groep is a Dutch, family-owned supplier of wood and sustainable building materials, drawing on a century of experience and four generations of expertise. Based in Leeuwarden, the group serves construction, renovation, marine and interiors projects through five specialist businesses: Miedema Bouwmaterialen, Miedema Houtindustrie, Miedema Nautic, Miedema Projecten and SIP Bouwtechniek.

Its products include timber, structural and finishing materials, insulation, sheet goods, cladding and marine wood. The group also supplies biobased options such as flax, wood-fibre and hemp insulation, along with recycled-content materials. Its Forza Iza range offers timber cladding in several wood species and finishes. Services span project advice and estimating, material selection, delivery, machining, coating and support with installation. In-house capabilities include sawing, planing, CNC milling, cutting to length, sheet processing, and HPL and veneer work. The group also makes custom marine and yacht components, prefab dormers and made-to-measure setting frames. Miedema emphasizes certified materials, practical advice, responsive service and solutions intended to make building more efficient and sustainable.