Versowood Oy unveils new headquarter to drive wood construction innovation

 Friday, February 6, 2026

Versowood‘s new headquarter is a showcase of timber construction without sprinklers. It is framed for all the benchmark projects based on modern wood construction.

Built almost entirely from wood and surrounded by forest, where nature is constantly present through large windows and wood is visible, tangible, and breathing everywhere. The building is both a workplace and a living showroom for Versowood’s own massive timber products. It is built as a building that is high-quality, functional, and an ambitious example of what modern timber construction can achieve.

The ambition was clear: ‘Create one of Finland’s finest wooden headquarters‘.

What makes the project truly exceptional:

• The building meets demanding fire safety requirements without a sprinkler system
• Instead of a costly and risk-prone sprinkler solution, fire safety was achieved with Treet’s translucent flame retardant treatment, preserving the natural appearance of wood while meeting regulations.
• Projects like this show that fire safety doesn’t have to come at the expense of design or sustainability.
• Proud to be part of a project that truly builds on the beauty of wood.

Basic information:

• Type of building: Office building
• Fire protection class: B-s1, D0
• Location: Vierumäki, Finland
• Fire protected: Interior wood surfaces

When wood is the identity, the headquarters must speak the same language

The Versowood headquarters has been built almost entirely from wood. Concrete has been used only in the ground floor slab, and all load-bearing structures are made from Versowood’s own solid wood products. The building serves not only as office space but also as a living showroom, showcasing the versatile use of wood from solid wood elements and beams to pallets and cable reels.

“This fire-retardant is an outstanding innovation. It enabled the realisation of a timber building like this without sprinklers, avoiding the significant costs and potential damage they would have entailed.” – Tuomas Huuskonen, Project Manager, Versowood.

At the early stages of the project, it was assumed that a timber building would require a sprinkler system. Upon closer examination, however, sprinklers proved to be both a significant lifecycle cost and a risky solution, especially in a timber building, where large volumes of water could cause substantial damage.

Alternatives were explored together with a fire consultant, and the solution was found in Treet’s fire-retardant treatment, which made it possible to meet all required fire safety criteria without a sprinkler system. The load-bearing timber structures did not require fire protection, but all other visible wooden surfaces were treated with the NORFLAM W310 (NT Deco) flame retardant.

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Tags: Forestry, mass timber, Solid Wood, surface, sustainability, Versowood, wood building, wood construction