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Koka karkasa mājas Norvēģijā
European Manufacturer Since 1991

Prefabricated Timber & CLT Buildings

34 years of experience building sustainable homes and buildings across Europe.

350+

projects completed

across 14 European countries

Private House

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For Developers

Timber and CLT solutions for developers, architects and contractors.

Business Solutions
Why Choose ZTC

Built on a Foundation of Expertise

34 Years Experience

Since 1991, we have delivered 350+ projects across 14 countries — combining decades of expertise with a personal approach to every build.

Timber Frame + CLT

Two advanced building technologies produced in one modern factory. One supplier, one contract, one point of accountability.

CNC Factory Precision

Hundegger CNC manufacturing with ±1mm tolerance. Panels arrive ready to assemble — no on-site adjustments, no waste, no delays.

Fast On-Site Assembly

Structural shell assembled in 3–5 days per floor. Weather-tight in weeks, not months - interior works can start earlier.

Building Systems

Two Technologies, One Supplier

Timber frame wall construction

Timber Frame Construction

  • Insulated wall, floor and roof panels for 1–5 storey residential buildings
  • U-value from 0.12 W/m²K — cellulose or wood fibre insulation as standard
  • Factory-fitted windows available — panels delivered ready to assemble on site
CLT cross-laminated timber panels

CLT Structural Systems

  • Mass timber structures up to 8 storeys
  • 3, 5 or 7 layer configurations — max panel size 13,800 × 3,100 × 400mm
  • Fire resistance up to EI 120 — acoustic performance Rw up to 65 dB

Best of Both Worlds

Hybrid Solutions

CLT structural core combined with timber frame insulated envelope delivers 15–20% cost reduction versus pure CLT — with superior thermal performance, one contract, and one point of accountability.

Private houseBusiness