Portable cabins let Kiwis add instant, code-compliant space without pouring a permanent foundation. Portaman supplies work-ready units that arrive fully insulated, pre-wired and clean, with both hire-and-buy options and fast NZ-wide delivery. Below is a practical step-by-step guide, inspired by Portaman’s skid-mounted models and by proven assembly advice from specialist kit-set builders.
Plan the Purpose and Pick a Portaman Size
Start by visiting Portaman’s Products to view real-world photos, floor plan, in-cabin wiring layout, and our latest hire-or-buy pricing. If that footprint isn’t an exact fit, no worries—Portaman can build a portable cabin in any size to match your brief; just tell us the length and width you need and we’ll custom-quote. Remember, keeping the cabin under 30 m² usually keeps you within NZ Building Act Schedule 1 (no building consent), but always double-check with your local council.
Ready-to-use space—delivered nationwide, wired, and insulated. That’s the Portaman promise.”
—— Portaman
Prepare the Site & Skids
Like all Portaman cabins, the floor sits on treated timber skids, so you only need a level, well-drained base such as compacted GAP 20 or concrete blocks. Lay skids true and square—your entire build will follow their accuracy.
Secure the Floor System
For DIY builds, start by assembling a sturdy treated-timber floor frame, secure it firmly to the skids with exterior-grade screws, add under-floor insulation, and then fix down structural plywood or another suitable sheet flooring. (All Portaman cabins arrive with this entire floor system factory-finished, so you can simply skip this step.)
Stand Wall Panels
Pre-assemble your wall frames with openings sized for whatever windows and doors you plan to install; then raise, plumb, and brace them securely. If you’d rather leave the heavy lifting to professionals.

Install Rafters & Roof Panels
Evenly space and fix your rafters or trusses, attach the purlins, then lay lightweight roofing panels—such as corrugated metal or another weather-rated sheet—finishing with barge and apron flashings. Always add a breathable building wrap beneath both the roof and wall cladding to keep moisture under control.
Add Exterior & Interior Cladding
• Exterior : treated plywood, cedar shiplap, or any other weather-resistant board that matches your preferred look and local conditions.
• Interior: plywood or grooved MDF—easy to paint and built for long-term durability.
All Portaman rentals arrive factory-painted; if you’re doing the finish yourself, remember to seal every edge before applying the final coats.
Wire, Light & Comply
Hire a licensed electrician to bring power into the cabin and install your light fittings and sockets.
Add smoke alarms and make sure there is adequate natural or mechanical ventilation to satisfy New Zealand Building Code requirements.
Portaman cabins arrive with these essentials factory-wired and safety-checked, so you can simply plug in and start using the space.
Final Fit-Out & Moving Tips
Seal any gaps or service penetrations, fit skirting and trim, then apply your chosen interior finish coats. When it’s time to move the cabin, confirm clearances and arrange a suitable transport option, such as a Hiab or tilt-tray, using experienced operators.
Prefer a hands-off approach? Portaman can organise the entire relocation for you, ensuring the cabin is lifted, transported, and set down safely.
Conclution
Building a skid-mounted cabin follows clear phases—site prep, skids, floor, walls, roof, fit-out. Stick to NZBC rules and your cabin will serve for decades. For those who value speed over sawdust, Portaman’s ready-to-go range delivers the same end result without the hands-on workload.