Build a level base on uneven ground.
Collected by LevelTheBase.
Same-day sauna install right next to water.
A level timber frame for a sauna and terrace.
Chose BASIS instead of a concrete base and saved over £4,000 on the project.
Had a 20cm slope at the install location of her outdoor sauna.
Sass asked for BASIS so he could keep it level himself if the ground ever changes.
Each BASIS support includes diagonal braces with pre-drilled holes. These come handy to attach onto them skirting supports. Skirting is a good way to finish off the sides of your base.
Blocking is site-cut from your material (not pre-shipped).
Blocks attach through pre-drilled holes once leveling is complete.
Blocks cut to match brace angle after posts are adjusted to final position.
Brace angle adapts to ground slope; blocking adapts to brace angle.
Skirting attaches to blocks; if posts adjust later, recut blocking without new hardware.
We recommend a BASIS support every 1.5m under your timber frame for optimal stability.
Here's our estimate.
Based on 1.5m max spacing
The support spacing here is calculated for a frame of 5×10 cm.
If your frame is 10×10 cm or more, less supports are required.
Want to read more about base framing?
Why Garden Room Kits Need a Timber Frame Base
This video shows exactly how simple it is to create a solid base using the BASIS supports.
Want to see the full, step-by-step path from bare ground to finished base? Explore the two proven installation methods for BASIS systems.