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Holzraum System provides energy modeling, Passive House consulting and S.I.M.M. modeling to production package services and we partner with off-site manufacturers for fabrication. The Holzraum - Manufacturer collaboration encompasses start to finish envelope design and planning including engineering, timber, fastener and wood fiber insulation strategies as well as coordination with design and trade professionals. 


Designing and building custom high-performance wood structures based on collaboration, high-craft, sustainability, longevity, and intent. From our studio-shops in New York and Oregon we design, craft, and build custom homes, buildings, and enclosures throughout North America.


We are Collective Carpentry, offering a unique and innovative approach to constructing comfortable, sustainable, high performance buildings. We specialize in Passive House and Net Zero design principles, low embodied carbon materials, and off-site prefabrication methods.


All over the world, customers of HASSLACHER NORICA TIMBER build on top timber quality, optimum logistics and coordination by a central contact.  With a wide range of products the possibilities are endless: Whether cross-laminated timber with its Exzellent, sanded surfaces or individually tested glue laminated beams – GLT®, solid timber ceilings with the best price-performance ratio or glue laminated timber up 4 m high and 40 m long – the customized order can be combined for delivery on one truck.



ELEMENT5 specializes in the design, fabrication, and assembly of modern timber buildings. We work with solid wood, the world's most flexible and only renewable building material.


Stoltze Timber Systems offers a comprehensive building system with a wide array of  Mass Timber products and solutions for Architects, Contractors and Developers for Single Family, Multi-family and Commercial projects.

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