by Terra6 » Fri Jan 22, 2021 12:05 pm
Trick question.
They're building foamie houses and buildings.
If you include SIPS panels.
Basically, like any living thing, reinforcing structure frame required the bigger one builds.
Foam only seems 4x4x8 2 inch XPS is reasonable unsupported or unframed if that is what you're getting at.
Larger if skinned on both sides.
On the road to Shambala...