# Quanhui Modular Housing — Complete Technical Documentation

## 1. Company & Manufacturing Overview
Quanhui Modular Housing is direct-distributed from Chongqing Quanhui Modular Housing Co., Ltd.. We manufacture precision double-wing expandable steel container homes that ship within standard intermodal freight dimensions and deploy into fully equipped residential dwellings within 2 hours of arrival.

- Turnkey Base Price: $18,000 (FOB Factory)
- Structural Framework: CE-Certified structural steel frame with anti-rust cathodic primer finish
- Floor Area: 396 sq ft (36.8 m²)
- Deployed Size: 5,900 mm L × 6,240 mm W × 2,480 mm H (19.4 ft × 20.5 ft × 8.1 ft)
- Shipping Size: 5,900 mm L × 2,220 mm W × 2,480 mm H (Road-Transport Legal Width)
- Warranty: 3-Year Manufacturer Warranty on Steel Framing & Thermal Enclosure

## 2. Inclusions
- Pre-installed bathroom suite: walk-in shower stall, flush toilet, vanity with faucet, exhaust fan.
- Pre-installed kitchen suite: food-prep counter, kitchen cabinets, stainless sink and faucet.
- Electrical: UL American Standard Certified Electrical Outlets, Switches, and Breaker Panel. Pre-wired to central distribution breaker box.
- Plumbing: Complete pre-fitted sanitary plumbing ready for municipal or septic connection.

## 3. Factory Upgrades
- Climate & R-30 Extreme Cold Insulation: 100mm PU/Rockwool core, Low-E argon triple glazing, snow load roof reinforcement (+$3,500).
- 18,000 BTU Inverter Mini-Split Heat Pump & AC: High-efficiency heating down to -15°F & cooling (+$2,800).
- Off-Grid 5kW Solar & 10kWh Battery System: Hybrid split-phase inverter, LiFePO4 battery bank, solar roof array (+$6,500).
- Off-Grid Eco-Sanitary: Incinerating or waterless composting toilet with 100-gal water bladder (+$2,200).
- Luxury Quartz & Wood Cabinetry Suite: 20mm quartz waterfall countertop, soft-close shaker cabinets (+$3,200).
- Folding Veranda & Retractable Awning: Composite outdoor deck with balustrades (+$2,400).

## 4. Foundation & Delivery
- Intermodal ocean freight + flatbed jobsite truck delivery.
- Crane or forklift offloading: 20-ton crane or rough-terrain forklift lifts unit onto prepared foundations.
- Foundation types: Augered concrete sonotube piers, grade beams, ground screw anchors, or concrete slab.

## 5. Permitting & Zoning
- Complies with California SB 9 / AB 68 ADU ordinances (ministerial approval within 60 days, 4-foot setbacks, no owner-occupancy requirements).
- Unincorporated Texas: No zoning or building permits required; septic permit only.
- Florida: Meets high-wind engineering with seismic/wind tie-down anchors.