ADU/Tiny Home Kits

About DuraMax ADU + Tiny Home Kits

DuraMax does not officially market their insulated buildings as ADUs or tiny home kits, but the larger models in the insulated buildings line and the BOSS Gable Roof Tiny House are sized and constructed to support exactly those use cases when paired with appropriate permitting, foundation work, plumbing, electrical service, and interior finish-out. DuraMax BP carries these eleven kits factory-direct with free freight shipping to the lower 48.

The smaller insulated buildings (10x10 and 13x10 Garden Glass Rooms, 13x10 Gable and Flat Top) work as studio ADUs in many California-style relaxed jurisdictions - 100-130 sq ft single-room units suitable for short-term rental or guest space without full kitchen and bath. The larger 16x10, 19x10, 23x10 Gable and Flat Top models support one-bedroom ADUs with bathroom, kitchenette, and living space within the building. The BOSS Gable Roof Tiny House 8.5x20 ships configured specifically for tiny-house use with the layout and proportions buyers expect from the tiny-home market.

The critical distinction for ADU buyers: building a structure capable of ADU use and getting it approved as an ADU are two different processes. The buildings on this page can structurally support ADU function, but every municipality has its own ADU rules covering minimum sq ft, kitchen requirements, bathroom requirements, fire-rated construction, setbacks, parking, owner-occupancy, short-term rental allowance, and dozens of other variables. Most buyers should have a planning department conversation before ordering to confirm what is required in their specific jurisdiction.

What every kit ships with: insulated panel walls and roof, structural framework, doors, windows (per model), and the assembly hardware. What you provide: the slab (typically 4-6 inches of concrete with rebar, with plumbing rough-in installed before pouring), the plumbing, the electrical service from the main panel, the interior finishing (drywall, flooring, paint, trim), the kitchen and bathroom fixtures if applicable, and the climate control system (typically a 12,000-24,000 BTU ductless mini-split).

Permits: ADU buildings always require permits and almost always require additional zoning approval, structural engineering documentation, and plumbing/electrical inspections. Allow 6-12 weeks for the full permit process at this category. Some jurisdictions have streamlined ADU permits (especially California and Oregon under recent state legislation); others have not. See our permits policy.

If you want a building specifically designed as a tiny home from the start, look at the BOSS Gable Roof Tiny House model in this collection. If you want the largest single-room insulated building, the 22x10 (officially 23x10) is the answer.