Timber vs Concrete Stairs — which system suits your project?
Two dominant stair construction systems — timber and concrete — behave very differently in cost, weight, sound transmission and long-term durability. This guide helps you choose the right method based on performance, context and construction constraints.
Quick comparison
| Factor | Timber | Concrete |
|---|---|---|
| Weight | Light | Very heavy |
| Construction speed | Very fast | Slow (curing time) |
| Noise | Can creak / transmit sound | Excellent acoustic mass |
| Fire resistance | Low–medium | High |
| Shape flexibility | High | Medium |
| Cost | Lower upfront | Higher |
Timber stairs — advantages
- Fast and clean installation — ideal for renovations.
- Lightweight, reducing load on supporting structure.
- Easy to customise: open risers, floating designs, detailing options.
- Lower upfront cost compared to reinforced concrete.
- Warm aesthetic that suits residential interiors.
Limitations of timber
- Prone to deflection and vibration if under-sized.
- Acoustically weaker — footsteps and creaks are common.
- Fire resistance must be engineered or protected.
- Sensitive to humidity and long-term warping.
Concrete stairs — advantages
- Rigid, solid and long-lasting — near zero vibration.
- Superior acoustic mass: almost no footfall noise.
- High fire resistance; often performs as a protected escape route.
- Good for heavy traffic or public buildings.
- Compatible with terrazzo, tile, timber veneer or carpet finishes.
Limitations of concrete
- Much heavier — requires careful structural design.
- Slower build time due to formwork and curing.
- Modifications are difficult once cast.
- Higher cost, especially for custom shapes.
When to choose timber
Use timber when speed, flexibility and low weight are priorities. Ideal for residential houses, lofts, mezzanines, or any space requiring a lightweight structural solution.
When to choose concrete
Use concrete when durability, mass and fire performance matter — apartment buildings, public stairwells, transport hubs or where noise reduction is essential.
Related tools
Check geometry quickly with the Stair Calculator or convert angles using the Slope Calculator.