ONE FIRE · ONE SUBSTRUCTURE
The Same Supporting Structure. Two Surface Materials.
60:00
LUMBERCON SURFACE PLANKS
3-foot span · 384 lb load
The complete LumberCon deck burned for one full hour and showed no signs of failure when the fire was extinguished.
UNDER 6:00
COMPOSITE SURFACE PLANKS
18-inch span
Composite surface planks spanning 18 inches failed in under six minutes over the same LumberCon substructure.
The two surface materials were tested at different spans. Full method below.
See the Fire Demonstration
We believe building materials should prove their performance, not simply promise it. We constructed a complete deck from LumberCon and exposed it to fire for one full hour while the surface planks supported 384 pounds. At the end of the hour, LumberCon showed no signs of failure.
How the Demonstration Was Conducted
This was a single deck tested in two stages, not two matching decks burning side by side. The LumberCon supporting structure stayed in place the entire time. Only the surface planks changed between stages.
Complete LumberCon Deck
We began by constructing a complete deck from LumberCon, including both the surface planks and the supporting structure below. The surface planks spanned three feet and supported 384 pounds. The deck burned for 60 minutes. At the end of the hour, the LumberCon planks remained intact and showed no signs of failure, so the fire was extinguished.
Composite Surface Planks
After the LumberCon demonstration, we removed only the surface planks and installed composite decking over the same LumberCon supporting structure. The composite surface planks spanned 18 inches and failed in under six minutes of fire exposure.
This demonstration was created to show how the materials visibly performed under the conditions shown. It was not a standardized laboratory test, and the surface materials were tested at different spans. LumberCon’s formal fire classifications and certifications are provided separately below.
Material Choice Matters in Fire-Prone Environments
Outdoor structures can influence how fire moves around a property. Materials that ignite, weaken, or collapse may create additional hazards. LumberCon is made from high-strength concrete reinforced with steel wires, so its fire performance does not depend on a topical coating or treatment that can wear away.
Noncombustibility Is Part of the Material
LumberCon’s fire performance does not come from an applied coating, chemical treatment, or outer layer that must be maintained. The planks are made from high-strength concrete and reinforced with prestressed steel wires, providing strength and noncombustibility throughout the material.
Built for Long-Term Outdoor Durability
- Will not rot, warp, cup, or splinter
- Will not attract termites or other pests
- Will not weaken because of moisture exposure
- Built to withstand repeated freeze-and-thaw cycles
- Available for both surface and substructure applications
Supported by Formal Testing and Certification
ASTM E136
ASTM E84
WUI Certification
Certification in progress
LIMITED TIME · AT THE SHOW
See LumberCon at FutureScape USA
Want to see the material behind the fire demonstration in person? LumberCon will be exhibiting at FutureScape USA on September 1–2, 2026, at The Barker Hangar in Santa Monica. Visit our booth to see samples, learn more about LumberCon’s fire performance, and talk with our team about an upcoming project.
