Our goal is to turn your vision into
perfect space

Increase your lifestyle and living space
with an XTENSION Space!

Ideal for an extra bedroom, gym, hobby room, office space, children’s playroom or anything else you need.  Extend your home without the costly renovation!

XTENSION Spaces are built with an insulated core making them the warmest and driest standalone space you’ll find.

Constructed with strong and lightweight insulated panel. Doors and windows are double-glazed with aluminium joinery.

Turn your unused backyard or garden into usable space with our Spaces.  Choose to build it yourself with our kitset Spaces or have it prebuilt in our factory. 
Choose your additional extras such as foundations, electrical connections, window and floor coverings, and then get in touch with your order. 
We have finance available and will deliver your Space to your door.

Easy as that.


The Simple Space provides a practical and affordable solution.

Our Simple Space is constructed using EXPOL Emperor Panel providing a warm, dry and comfortable space at an affordable price

Why do we use EXPOL Emperor Panel exclusively when building our Spaces?

”Because they out perform traditional building materials and methods in many ways.”

Structural Insulated Panels (SIPs, or SIP panels) deliver unrivalled insulation and air tightness, which reduces energy costs over the building’s lifetime.
They are known to be around 50% more energy efficient than traditional timber framing.
A SIPs system has minimal thermal bridging and delivers excellent air tightness, which meets and exceeds the Building  Code.


Energy Efficiency

EXPOL Emperor Panel is highly energy-efficient due to it’s insulation properties. The panels consist of a polystyrene foam core sandwiched between two rigid sheathing materials, in the case of EXPOL Emperor Panel, ColorSteel. As a result, EXPOL Emperor Panel provide excellent insulation and can significantly reduce heating and cooling costs.


Improved Indoor Air Quality

The airtight construction of EXPOL Emperor Panel helps prevent drafts and infiltration of outdoor pollutants, ensuring better indoor air quality. This can be particularly beneficial for individuals with allergies or respiratory conditions. Additionally, the panels insulation properties contribute to consistent indoor temperatures and reduced condensation, which can help prevent mold and moisture-related issues.


Reduced Thermal Bridging

EXPOL Emperor Panel creates a continuous layer of insulation, reducing thermal bridging and preventing air leaks. 


Noise Reduction

EXPOL Emperor Panel provides excellent sound insulation properties, creating a quieter indoor environment. The polystyrene foam core helps dampen sound transmission, reducing noise from outside sources and between different areas within the building.


Strength and Structural Integrity

EXPOL Emperor Panel offers exceptional structural strength. The combination of the polystyrene foam core and ColourSteel skins creates a rigid, load-bearing structure. Additionally, the panels distribute weight evenly, reducing the risk of structural issues over time.


Faster Construction

Using EXPOL Emperor Panel can speed up the construction process when compared to traditional methods. The panels are prefabricated off-site according to precise measurements, ensuring a high level of accuracy and reducing waste. The quick assembly of panels can shorten the overall construction time, allowing you to move into your new Space sooner.



EXPOL Emperor Panel is an environmentally friendly building material. The manufacturing process typically uses less energy compared to traditional construction materials, and the insulation properties contribute to reduced energy consumption throughout the building’s lifetime. Additionally, the panels are made from renewable and recyclable materials, making them a sustainable choice for construction.


Design Flexibility

EXPOL Emperor Panel offers design flexibility, allowing for a wide range of architectural styles and layouts. The panels can be easily customized and cut to fit specific designs and dimensions. Whether you’re building a residential home, commercial building, or other structures, EXPOL Emperor Panel can accommodate various architectural requirements.



If you’re handy on the tools and confident in your building abilities, you’ll want to save money with our Simple Space kitset option


For those with limited time or building skills you will want to order our prebuilt solution. Your XTENSION Space will be built in our Auckland factory and delivered directly to its final location.


Whether you’re after a kitset or prebuilt XTENSION Space we will arrange delivery to its final location.

About Us

XTENSION Spaces are manufactured, distributed and supported by EXPOL.


We have been through the XTENSION factory in Onehunga to get some up-to-date photos of our products, both in production and completed form.   You can see more of our Simples Space and the features and finish of our products.   You can check them out here.



We have pulled together a factory tour video that showcases the Simple Space.   They provide an opportunity to see the features and finish of our products as well as the factory that they are manufactured in.   You can check them out here.


Simple Space, by XTENSION

Running out of living spaces?  Need another bedroom for your growing family or guests?  Increasingly working from home and need a separate space?  Is your hobby or fitness equipment taking over your spare room or garage?  Or do you simply need dry, well-built storage space? Don’t take the costly step of renovating or paying huge

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