STB Forms

ST Bungalow LLC presents

STB Forms

The first stay-in-place formwork system with a geometry (vaulted, arched, shell structure) that lets concrete work in pure compression — no steel rebar, no FRP bars, no steel decking.

Our first full-scale 3D-printed prototype test — University of Maine ASCC, June 2026

20%

Concrete reduction vs. conventional rebar construction

$300B

Size of the steel reinforcement bar market STB Forms can replace

Our design means:

  • Zero steel installation costs
  • Zero formwork set up / take down / cleaning costs
  • 100% recycled material
  • No corrosion
  • No skilled trades required
  • Drastic reduced labor costs

Our design means incredibly strong concrete slabs able to carry very high live loads — potentially up to 300 psf or more all while reducing the dead weight of a building.

Our forms can be made from many different materials — plastics, composites, etc.