Mathematics makes wood three-dimensional

A TU Vienna spin-off is revolutionising construction with wood. Using an intelligent grid system, complex 3D shapes can be constructed from flat wooden elements. This not only opens up new architectural possibilities, but also sustainable, efficient construction methods using regional materials.

July 2025

The combination of geometry, wood technology and digital modelling creates new paths for architectural timber construction. The start-up Beyond Bending, created at the Vienna University of Technology, has developed an innovative system with which complex free-form shapes can be realised from flat wood. The patented “FLEXGrid clamping system” is based on flat grid structures that can be transformed into a desired three-dimensional shape through controlled clamping, exactly as previously mathematically calculated.

From flat to three-dimensional
The technology is based on a basic principle familiar from the world of gardening: elastic, expanding grids made of parallel wooden slats. This simple but effective construction principle has been further developed and digitalised in engineering terms. Designers define the target geometry and the algorithm calculates the appropriate lattice. This then takes on exactly the desired shape during assembly.

Efficiency meets aesthetics
The system not only enables precise shaping, but also material and resource-saving construction.

  • Simple production of the flat components,
  • quick assembly on the construction site,
  • No need for complex formwork or special moulds

Use of regional timber
A first practical example is the pop-up pavilion in Kuchl, Salzburg. The ten metre wide and four metre high structure was successfully implemented using this method and serves as a demonstrator for future applications in the field of temporary or permanent timber constructions.

Digital design as the key to material reduction
The system impressively demonstrates how maths, algorithmic design and sustainability can work together. It allows architects and builders to realise free-form constructions without high production costs or complex mould construction processes.

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