Prefab Tiny Cube 20FT with Washroom B

Quick heads-up

1. Check local building rules for small prefab dwellings (pad, tie-downs, snow/wind rating, plumbing).
2. Plan utilities before delivery — power is required, plus water/sewer hookups for the built-in bathroom.
3. Confirm truck access, a solid level pad, and anchoring points.

Why people pick this model

This 20-foot prefab cube is the largest in the series — a fully finished, insulated studio with a real bathroom and full-height front glass wall. It’s built on a Q235 steel frame with aluminum-plastic exterior panels and fire-rated EPS composite wall/roof panels, making it durable, quiet, and weather-ready.
Inside, you’ll find concealed electrical wiring, lighting, and outlets already installed. The bathroom includes a ceramic toilet, shower zone, basin with cabinet, mirror, and floor drain. Eco-grade interior boards and double-glazed tempered windows provide warmth and comfort year-round. The long, panoramic front glazing floods the room with natural light while maintaining insulation.

Highlights

• Turn-key build – arrives finished with full wiring, lighting, sockets, breaker panel, and plumbing.
• Quiet & efficient – EPS composite insulation and double-glazed windows for temperature and noise control.
• Premium exterior – powder-coated steel chassis and aluminum-plastic panels for long-term durability.
• Comfortable airflow – screened push-out windows plus mechanical ventilation.
• Complete interior – storage cabinets, mirror, shower partition, folding aluminum bathroom door.
• Ready for use – plug in power, connect water/drain, and it’s move-in ready for guest use or office space.

Good for

Guest suite • Backyard rental • Private office • On-site housing • Studio with large glass view wall

Core Specs

• Overall size (L×W×H): 5900 × 2205 × 2350 mm → 19 ft 4 in × 7 ft 3 in × 7 ft 8 in (approx.)
• Weight: 1700 kg → ≈ 3,748 lb (dry)
• Pack-out: 2 sets / 40 HC container (typical)
• Structure: Q235 steel frame + glass-steel plate roof + aluminum-plastic front/rear panels; sand-blasted and powder-coated chassis
• Walls / Roof: Fire-rated B2 Level 64 EPS foam composite panels
• Floor: 15 mm eco board + 3 mm anti-slip, wear-resistant surface
• Front Door Glazing: Broken-bridge aluminum, 2185 × 4410 mm → 7 ft 2 in × 14 ft 6 in, black, double-layer tempered glass
• Windows: Push-out double-glazed tempered glass windows (1 ft 7.7 in × 1 ft 5.7 in and 2 ft 3.6 in × 1 ft 3.7 in) with screens
• Bathroom (fitted): Vent fan / toilet / wash basin with mirror / shower + partition / floor drain / aluminum-alloy folding door (with alloy edge)
• Furniture: L-shaped combination cabinet (with vegetable basin) / hanging cabinet / bathroom cabinet
• Plumbing connections: Hot & cold ½ in feed lines / Drain Ø 1.57 in (40 mm) / Toilet Ø 4.92 in (125 mm)
• Electrical (concealed): Breaker panel (2P32A) / distribution box / leak protection / switches / sockets / wide-pressure downlight / shadowless lamp / vent fan / waterproof socket
• Fire rating:  A1 / B2 (optional)
• Part number:  0402000017

Plan for

• Pad / anchors: Level pad with tie-downs per local requirements.
• Power: Electrician to land supply on distribution box (ships with 2P32A main).
• Water / drain: Stub ½″ supply and 1.5″ & 5″ drains to match unit layout.
• Upgrades (optional): Mini-split HVAC, extra outlets, interior fit-out customization.

Full Specifications