The 40ft High Cube, Up Close
Around Colorado, the 40ft High Cube is the box most people choose when they're building something to live or work in.
Its 9'6" walls run a foot taller than a Standard unit. Once you've added insulation and a sub-floor, you're left with roughly 8ft of clearance — right at the line most codes draw for habitable rooms.
"That one extra foot is the whole difference once the floor and walls go in."
How It Stacks Up Against the Rest
| 20ft Std | 40ft Std | 40ft HC | |
|---|---|---|---|
| Floor area | ~146 sq ft | ~304 sq ft | ~304 sq ft |
| Ceiling (external) | 8'6" | 8'6" | 9'6" |
| After insulation | ~7'2" | ~7'2" | ~8' |
| Rooms (after build) | Studio / office | 1-bed | 1-bed tiny home |
Think of a 40ft HC as a studio apartment, or a one-bedroom once it's finished out.
A Few Ways to Lay It Out
Studio
Open plan — great for solo living.
1-Bedroom
Bedroom + bath + kitchen + living.
Dual-Use
Office by day, guest room at night.
A Few Things People Ask
Around here it runs from about $2,000 for a Wind & Water Tight up past $4,500 for a One-Trip.
Close to 280 sq ft once it's insulated, with about 8ft overhead — roughly a studio apartment's worth of space.
They're built to stack many high when loaded, so a two-story build works — you'll just need an engineered footing and proper connection plates.
Concrete piers (four corners plus a couple mid-span on a 40), a slab, or a packed gravel pad all work. Out here, mind the local frost depth.
Usually yes — the tilt-bed handles most south-metro addresses as long as there's about 100ft of straight room to work with.