Cabin Tiny House Johanna 9.0m x 4.5m

When you need maximum extra living space for your property, the Johanna 9.0m x 4.5m delivers in a big way. As the largest flagship model in the range, it packs an expansive 28.5m² footprint into a clean, contemporary design. It gives you the generous usable floor area of a proper self-contained studio, sleepout, or grand backyard retreat without the extreme cost and disruption of a traditional home renovation. Like the rest of the range, the Johanna XL is engineered for genuine all-year comfort. It features pre-assembled wall elements with built-in internal wind-protection plastic and is framed specifically for 95mm insulation. Once lined and insulated, you get a cosy, efficient building that holds warmth through crisp winter mornings and stays comfortable during peak Kiwi summers. With its generous layout, 24mm thick double-glazed full-height doors (both sliding and single opening) flood the interior with natural light while keeping thermal performance high. Open the wide doors right up to connect seamlessly with a deck, patio, or lawn area, creating an indoor-outdoor setup that feels like a natural extension of your main home. Supplied as a complete DIY kitset with treated foundation joists and 19mm tongue-and-groove roof and floorboards, the main cabin arrives untreated so you can stain or paint it to match your property. Backed by a 5-Year Warranty, it is the ultimate way to add serious living space, flexibility, and value to your backyard. Perfect for: The multi-generational household: Ideal as an expansive sleepout, self-contained guest suite, or independent retreat for older kids or visiting whānau. The ultimate work-from-home setup: Ample space to split into multiple workstations, a private meeting desk, and a break-out lounge area. The lifestyle improver: Endless possibilities for a large home gym, games room, creative studio, or high-capacity backyard lounge. FEATURES • Flagship model in the Johanna range with a massive 28.5m² footprint • Ready-made wall elements with internal wind-protection plastic built in • Framed and ready for 95mm wall insulation for year-round use • Crisp, contemporary gabled design with wide double doors • Expansive floor plan designed for multi-zone living, working, or studio layouts • Crafted from renewable, kiln-dried Nordic spruce timber • Double-glazed doors and windows with coated, toughened safety glass • Delivered untreated, ready for your choice of paint, stain, or protective oil • Includes treated foundation joists and 19mm tongue-and-groove floorboards • 5-Year Manufacturer Warranty SPECIFICATIONS Optional roof EPDM rolls required: 2 Dimensions (footprint): W 9.01m x D 4.48m x H 2.96m Floor area: 31.8m² Ridge height: 2.96m Eaves height: Front - 2.70m Roof gradient: 3.0° Roof area: 39m² Wall thickness: 18mm+95mm cavity Roof panel thickness: 19mm Floor board thickness: 19mm Door opening size: Front - W 1.03m x H 2.05m, Side - W 0.84m x H 2.04m Glazing: Doors - Double glazed Door glazing: Toughened coated 4mm glass - 16mm gap - 4mm glass Packaged size: Carton 1: L 500cm x W 120cm x H 140cm, 1090kg. Carton 2: L 500cm x W 120cm x H 90cm, 1100kg. Carton 3: L 230cm x W 120cm x H 50cm, 290kg. Carton 4: L 460cm x W 120cm x H 110cm, 490kg. Weight: 2970kg A quick tip on construction: A completely flat, level foundation is the secret to a smooth build and long-term durability. Ensure your base keeps the cabin floor raised at least 50mm off the ground to allow proper airflow underneath, and place a damp-proof course between the joists and the ground. If you are unsure about site preparation, getting a local tradie to set up a level base is well worth it.