How much roof space storage can you gain from a conversion?

xtend, instead Your house isn’t too small. It’s just full.

Before you start calling agents or pricing extensions, it’s worth looking up and considering roof space storage. Most Queensland homes are sitting on attic storage space that nobody’s touched, right above the ceiling, waiting to be floored, lit, and accessed with a decent ladder.

Attic storage is one of the fastest, most affordable ways to get your home working properly again. No council approvals for a major structure, no months of construction disrupting your life, no six-figure renovation bill. Just the space you already own, made usable.

Hundreds of Queensland homeowners have gone through this with us and left us a five-star review on the other side. We’ll discuss two of our recent projects below so you can see exactly what’s possible, in real square metres, with real homes.

 

What determines how much roof space storage you can gain?

Before the case studies, it helps to understand the variables that shape your outcome. Two homes on the same street can yield very different results.

Roof pitch is the primary factor. A steeper pitch creates more vertical height at the centre of the roof cavity, which means more usable standing or crawl space. A low pitch flattens everything out, limiting how much of the cavity clears the 900mm minimum height threshold needed for practical use.

Roof type matters significantly. Conventional roofs, built with rafters and purlins, tend to be open inside, giving installers more room to work and floor. Truss roofs, which dominate Queensland homes built from the 1980s onwards, include internal webbing and bracing that can reduce the usable area, though they by no means rule out a worthwhile installation.

Home footprint multiplies everything. A larger home has more roof area to work with, even after the usable zone is calculated.

 

How much space in the attic do you need for a roof storage area?

What counts as usable is generally the floor area where head height clears at least 900mm. Below that, you can still store flat items on a boarded floor, but you lose the ability to move around or access stored goods easily.

As a general guide, if your cavity yields at least 5m² of usable floor area, a storage flooring installation is a worthwhile investment. Anywhere from 8m² or more, an enclosed storage room is a great option. For a broader look at how the roof space conversion process works from assessment through to completion, that overview is worth reading before you commit.

Also know that an extension to add equivalent storage or a spare room typically costs $80,000 to $150,000 and takes months to complete. Attic storage costs a fraction of that and installs in less than a week. For homeowners who love where they live but feel squeezed by clutter, it’s the most sensible path forward.

 

Attic storage space for two-storey unit in Nathan

Justin’s situation was a little unusual. He lives in a two-storey unit in Nathan with a large roof cavity above his top floor. The cavity had good height, ranging from approximately 1,000mm to 2,000mm, which meant that a meaningful portion of it cleared the usable threshold with room to spare. The only obstacle was a PVC pipe running through the space. Before any work could begin, Justin also needed body corporate approval. Because he sits on the committee of a small complex, he was able to move through that process without significant delay. He arranged for the pipe to be relocated by a plumber before the installation date.

We installed 18m² of storage flooring and a Queensland-made Falcon Folding attic ladder. Justin was initially quoted on a budget imported timber ladder option as well, but chose the Falcon for its quality and durability.

And the result? 18m² of floored, accessible attic storage space. Justin took this a step further by installing a magnetic LED light bar kit attached to the roof structure. His finished attic storage height ranges from 1000-2000mm across the floored zone, equating to 1350kg of extra storage.

Justin’s 5-star Google review captures what the experience was like:

“The team at Roof Space Renovators were fantastic, from first contact, to inspection and installation. An effortless process for us and super friendly staff. We have gained a huge amount of additional storage. Also highly recommend getting the $15 two LED light bar kit to light up your roof space (pic was taken at night, no flash), they are magnetic and stick to the roof easily.”

Justin’s story is a good reminder that body corporate properties aren’t off the table. With the right preparation and approval process in place, a unit with a well-proportioned roof cavity can yield substantial roof space storage, and the process of getting there doesn’t have to be complicated.

 

 

Cottage-style home attic storage in Shorncliffe, 20m²

Charlotte’s home is a classic two-bedroom, one-bathroom cottage in Shorncliffe. It has a conventional roof, built with traditional rafters rather than truss webbing, which means the interior of the cavity is essentially open from end to end. No internal structural bracing to route around. The home also has tall ceilings, over 3m, finished with VJ timber panelling. The roof cavity at its highest point offered approximately 1,700mm of head height, which is enough to stand comfortably in. The challenge was that Charlotte wasn’t simply after flooring. She wanted a proper storage room, finished to a standard that matched the quality of her home.

We built a 20m² enclosed storage room within the highest section of the cavity. Because the home’s ceilings were VJ-panelled timber, it was important to Charlotte that the attic hatch integrated with that aesthetic rather than looking like a rough access hole. The team installed a high-quality Big Boss aluminium attic ladder, custom-made with a 9mm recessed panel to hold VJ panelling that matches the ceiling and blends into the home.

She now enjoys 20m² of clean, enclosed, climate-managed attic storage space at a comfortable working height (1,700mm) and left us a glowing, 5-star Google review:

“The staff were very friendly and professional. They tidied up any mess at the end of each day and the quality of their workmanship is fantastic. I was impressed with this business from start to finish and would highly recommend to anyone wanting to install an attic. They even matched the panelling on the attic hatch with my roof panelling.”

This home is a good example of what happens when homeowners stop settling for a house that feels too small. She didn’t move or extend, instead she looked up, found the space, and made it work.

 

 

What about attic storage space in truss roofs?

 

Truss roofs are not a barrier to attic storage. The webbing and bracing require careful planning around access points and flooring positions, and the usable area will be shaped around the truss layout, but meaningful outcomes are achievable for most Queensland homes with a moderate pitch. If you’d like to understand more about what’s involved, this detailed guide on attic conversion for a trussed roof covers the key considerations specific to this roof type.

The best way to know what your specific home can yield is a professional inspection. There is no charge and no obligation involved, and you come away with actual numbers rather than estimates.

 

What happens if my roof cavity has insulation or electrical wiring running through it?

Similarly, insulation, wiring, AC and plumbing don’t rule out a conversion. Electrical wiring is typically managed during installation planning. Insulation is worked around or repositioned as needed. If there is a significant obstruction, like Justin’s PVC pipe in the Nathan unit, it can be relocated ahead of the installation date.

 

Let’s see what’s possible for your roof space

If you’ve been putting off a move because the market is rough, or quietly dreading the cost of an extension, it’s worth knowing that the answer might already be built into your home. We’ve helped hundreds of Queensland homeowners find that space, and they’ve told us about it in five-star reviews because the outcome genuinely changes how their home works.

Book your obligation-free inspection and find out exactly how much roof space storage your home can provide.