Introducing The Fortress Range

The Duratuf Fortress Range is the ultimate garden shed designed and built to withstand the toughest conditions in New Zealand. Our sheds are constructed with a full-timber frame that offers unbeatable strength and rigidity, ensuring they can handle anything Mother Nature throws at them.


At Duratuf, we understand that you want a shed that is both tough and stylish. That's why we have designed our Fortress Range to be uncompromisingly strong while also looking great. Our sheds are not only practical but also add aesthetic value to your outdoor space.


They can also be extensively adapted, upgraded and accessorised to fit your requirements using our 3D shed builder.  


Build it in 3D
Introducing The Fortress Range Model Tuf800 Shed CategoryImage 1
Introducing The Fortress Range Model Tuf100 Shed CategoryImage 1
Introducing The Fortress Range Model Tuf600 Shed CategoryImage 1
Introducing The Fortress Range Model TufLocker Shed CategoryImage 1

The Thinking Kiwi's shed

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Steel Logos v2

Extra Thick Hi-Tensile Steel Cladding

When it comes to steel cladding, we aren't trying to go as thin as possible. It's just not the Duratuf way. Duratuf full timber framed garden sheds have 0.4mm thick hi-tensile anti-rust steel. That's up to 60% thicker than some competitors, meaning that it's not only stronger, but your shed will stay looking better for longer!

30 Year Steel Warranty

When buying a garden shed, it is important to have peace of mind that it is going to stay looking good for a long time. That is why we guarantee the integrity of out steel cladding for 30 years. And, being a NZ Manufacturer, we are here for you in the unlikely event that you have a problem with your cladding. Conditions apply.

Fortress Frame v3

Full Timber Frame

Our garden sheds feature a machine-finished timber frame that serves as a sturdy backbone. The interlocking of the timber at the corners provides additional rigidity and strength, resulting in a highly durable structure.

Typically, sheds are assembled using nuts, bolts, and screws. However, our Duratuf Fortress sheds are built differently, with the cladding firmly attached to the frame using galvanized nails, similar to those used in garages. This method of construction braces the structure and enhances its resilience, enabling it to withstand the test of time.

Advanced water runoff medium

Advanced Water Run Off

Surely everybody wants a weatherproof shed? It’s important then, that water flows away from your shed to ensure your valuable gear is kept dry. The unique design of our sheds ensures that water is not trapped on or around them. 

Duratuf timber frame sheds feature a unique construction method where the cladding is nailed to the top and bottom plates. This method ensures that water runs away from the shed easily as there are no channels to trap leaves, dirt and water that will leak, or sit and corrode the cladding. (Fig. 1)

Conventional shed designs require a channel at the top and bottom of the shed to hold the cladding together.   (Fig. 2)

Fortress kitsets can be modified to allow the wall cladding to extend past the base of the shed when placing on a raised concrete floor. This completely eliminates the possibility of water running back into the base of your shed.

It is necessary to order the Raised Base Modification for the Fortress range at the time of ordering the shed. 

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Weather-Tight Corners

Duratuf Fortress garden sheds feature unique full-size wall sheets that wrap around the corners (Fig. 7), eliminating any corner joins. This gives the shed amazing waterproofing qualities and is clearly superior to most conventional corner designs (Fig. 8)

Wrap around corners also provides exceptional bracing strength and eliminates any sharp edges.

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Wrap Around Roof

The roof design on the Fortress range also features pre-folded roof sheets that wrap over the end walls to create a watertight finish. This makes installation easy and ensures that there are no leaks.

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Colour options

We offer an array of colour options with 9 to choose from for our Fortress Range.

If you would like to have a combination of two colours, for example Lichen walls with

Karaka roof and door, choose any two colours from the selection above.


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Superior NZ Made Quality

When you invest in a Duratuf garden shed, you are investing in a New Zealand made quality product that you can rely on.

Manufactured on home turf means that the product is suited to New Zealand conditions. Further to that, only the best materials are used, from NZ grown timber through to premium hi-tensile steel and quality fastenings.

Keeping Kiwis in jobs plays an important role in our community and gives the added assurance of controlled quality
during manufacture, coupled with a locally backed warranty - we’ll be here if you need us!

concrete floor

Building a Raised Concrete Base

Step 1 - Establish size of shed and excavate sufficient area. Remember to allow for rear roof overhang of 80mm and 30mm for end walls.

Step 2 - Ensure that the base substrate is compacted firmly. We suggest that the slab should be 80mm thick in the middle and 100mm thick around the edges (Fig 2).

Step 3 - Lay boxing to the required size. The raised slab size should be 15mm smaller than the overall base size of the shed and at least 30mm above the ground line. See Fig. 1 

Step 4 - Lay plastic sheeting if required. Plastic sheeting under slab will prevent moisture coming through from underneath.

Step 5 - Pour concrete and screed flush.

Build it in 3D