Demountable buildings (also known as dongas) are one of the most practical space solutions around, especially here in WA.

Whether you’re managing a remote worksite, gearing up for a major project, or need extra space fast, these portable buildings tick all the boxes. We’ve supplied thousands across the state, and over the years, we’ve seen them used in just about every way you can think of.

Here’s a look at some of the most common ways our clients put them to work.

1. Site Offices

Site offices are easily one of the most common uses for demountable buildings across WA. They give crews a reliable base to plan the job, hold meetings, and get admin sorted — without waiting weeks for a permanent structure to go up.

We’ve supplied these to construction sites, mine sites, council depots, and everything in between. Some are basic open-plan setups, others are fully kitted out with meeting rooms, storage, and more. It all depends on how you work.

Our Site Offices Typically Include

• Open-plan or split-room layouts
• Reverse-cycle air conditioning
• LED lighting and plenty of power points
• Structurally Insulated Panels (SIPs) walls and ceilings for all-weather comfort
• Windows for natural light and ventilation
• Region D2 cyclonic upgrades if you’re working up north

If you’ve got something custom in mind, that’s not a problem for us. We’ve built thousands of variations over the years and can tweak the design to suit whatever your site throws at you.

2. Emergency Response Rooms

When things go wrong, having the right setup can make all the difference. That’s why a lot of our clients use demountable buildings as emergency response rooms (especially in regional areas like the Pilbara).

These buildings are designed to stay put and keep people safe, even when the weather turns nasty. We can build to full Region D2 cyclonic spec, which means they won’t fall apart when the wind picks up. They’re solid, reliable, and easy to deploy fast when response time matters most.

What Makes Them Perfect for Emergency Use

• Can be built to Region D2 cyclonic standards
• Built with SIPs for better thermal performance
• Fully sealed, weatherproof construction
• Steel window shields to protect glass from debris during storms
• Quick turnaround from order to install
• Designed to meet WA safety and compliance standards

If you’re managing safety on remote worksites or planning for worst-case scenarios, these demountable solutions give you a secure, compliant space you can count on.

3. Training Rooms

On-site training is critical for keeping crews safe, compliant, and working efficiently (especially on remote or high-risk jobs). But organising off-site venues can be costly, time-consuming, and disruptive to daily operations.

That’s why many of our clients choose to install dedicated training rooms on-site. It gives teams a focused, well-equipped space to run inductions, toolbox talks, safety briefings, or upskilling sessions.

Why They Work So Well as Training Spaces

• Open-plan interiors that can fit tables, chairs, whiteboards, and AV gear
• Reverse-cycle air con for year-round comfort
• Power and data points installed
• Customisable layouts to suit large groups or small sessions
• Fast setup (ready to use within days of delivery)

Having a professional training space on-site helps ensure your team stays informed, compliant, and ready to work without unnecessary delays or downtime.

4. Crib / Lunch Rooms

 

Every site needs a clean, comfortable space where workers can take a break, grab some food, and reset. A well-built crib room gives crews a proper place to rest, which goes a long way toward keeping morale and productivity up.

We build our crib rooms with practical features that make them easy to use and durable enough for WA worksites. They’re fitted with proper kitchenettes and can be tailored to suit team sizes, shift patterns, or site layouts.

Typical Crib Room Features

• WA-made kitchenettes with benchtops, cabinets, drawers, and sink
• Reverse-cycle air conditioning
• Durable flooring and easy-clean finishes
• Insulated walls and ceilings for all-weather comfort
• Lighting and power points throughout
• Custom layouts to fit dining tables, fridges, microwaves, and more

We know what crews expect when they clock off for a break, so we build our crib rooms to match.

5. First Aid Rooms

Injuries can happen anywhere, and when they do, you need a space that’s ready to handle it. A first aid room gives your crew somewhere clean, private and properly set up to deal with medical issues fast.

We’ve delivered these to construction sites, mine camps, council depots and remote projects right across WA. They’re built to suit real-world conditions and can be kitted out with everything you need to respond quickly on the ground.

Common Inclusions for First Aid Rooms

• Air conditioning to maintain a stable room temperature
• Easy-clean surfaces and vinyl flooring
• Room for stretchers, treatment benches and medical gear
• Sinks and handwashing stations
• Full lighting and multiple power points
• Custom layouts available to suit your onsite setup

If you’re running a high-risk site, a first aid room isn’t an afterthought — it’s part of being WHS ready for whatever the day throws at you.

Ready to Set Up Your Site?

From site offices to first aid rooms, we build portable dongas that are ready to go when and where you need them.

All of our buildings are designed and built right here in WA, and we deliver across the state. If you need something custom, we’ll work with you to get it sorted fast.

Give us a call on 08 6325 4085 to chat about your project, or check out our full range of portable dongas for sale and hire today.