Backyard container office or guest room: ideas and layouts for one 20ft box

One container in the garden is the easiest way to try container living. A 20ft box has about 13.9 m² (150 sq ft) of floor inside — enough for a quiet office, a guest room, a workshop or a sauna. It is a small project, but it uses the same rules as a full house.

Four ways to use one box

• Home office. A desk facing a large window, shelves on the short wall, a small sofa. No commute and a door you can close.
• Guest room. A bed across the end, a shower room at the other end, a compact kitchenette in between.
• Studio or workshop. An open floor, wide doors, plenty of sockets and good light.
• Sauna or gym. Needs careful insulation and ventilation; a sauna also needs a heat-resistant lining and a safe heater installation.

Let the light in

A closed steel box feels like a box. The single biggest improvement is glazing: a wide window or a glass sliding door on the long side, or a glazed end where the cargo doors were. Every new opening must be framed with steel — see cutting openings in a container.

Make it comfortable all year

• Insulation on walls, floor and roof — even a small office is used every day. See how to insulate a container.
• Ventilation to avoid condensation on the steel.
• Shade over the glazing in summer: a canopy or deep roof overhang.
• Power from the house with a proper cable, or a small solar set for a simple office.

Before you order the box

1. Check local rules: a garden room may be exempt in one place and need a permit in another, especially if someone sleeps in it. See container home permits.
2. Check access: a truck and often a crane must reach the spot — see delivery and placement.
3. Choose 20ft or 40ft: if you might add a bathroom later, the longer box gives room to grow — see 20ft vs 40ft.

Sketch your garden room in the UnedPod configurator: place one container, add a glass door and windows, a canopy and a small deck, and get floor plans and a materials list in minutes.