Are you looking for extra storage space? Or perhaps you need to create a workshop where you can create handmade products or simply spend hours indulging in your favourite hobbies. Whatever the reason, a 20 x 40 shed gives you all the space you need for a multitude of uses.
With a tailor made shed from Fair Dinkum Builds, you aren't only offered a highly durable structure made from the best materials, but you're also able to choose every element of your design, creating a shed that perfectly suits your needs.
Design & Customise Your Own 20m x 40m Shed
From the colour of your shed to the roof style and doors, you have complete control over the final design of your 20 x 40 shed with Fair Dinkum Builds. We also offer some optional extras that allow you to add those finishing touches and create a shed that truly feels unique to your needs and complements your property.
Give our Shed Designer App a try today to see what you can create, and when you're ready, contact us to start bringing your vision to life.
Choose your 20 x 40 Shed Profile
Stramit K-Panel® wall sheeting
- The wide-covering wall sheeting is perfect for smaller sized buildings or sheds
- Simple to install due to its quick and conventional fastening design
- Perfect for smaller residential sheds, with a lower profile allowing for smaller flashing.
Stramit K-Panel® wall sheeting
- The wide-covering wall sheeting is perfect for smaller sized buildings or sheds
- Simple to install due to its quick and conventional fastening design
- Perfect for smaller residential sheds, with a lower profile allowing for smaller flashing.
Stramit Longspan® roof and wall cladding
- A great option for those on a smaller budget, and easy to install
- Stramit Longspan® offers customers countless design possibilities with variable screw fixing patterns
- The architecturally limitless applications can enhance whichever roof style you choose.
Stramit Monoclad® roof and wall cladding
- A perfect mix between water-carrying capacity, wind-load durability and design
- Facilitates single pane long-run roofing through Stramit’s compatible Monolap® joint system.
Stramit Monopanel® wall cladding
- Complete your shed's exterior with traditional lines and a sleek, even finish
- Can be ordered in a wide range of colours to suit every taste and style
- Currently unavailable in Queensland, Western Australia or Northern Territory.
Stramit SharpLine® architectural wall cladding
- Add a touch of class to your shed with sleek and elegant panelling
- Features a minimalist design and sharp rib edges that ooze with sophistication
Stramit® C-Clad 280 wall sheeting
- Features traditional lines and concealed fixing to enhance any house or shed
- Easy to install
- Low profile allows for smaller flashing and easy cleaning
- Suitable for horizontal or vertical applications
Stramit® Corrugated roof and wall cladding
- Stramit Corrugated roof and wall cladding is ideal for customers on a budget
- Lightweight, quick and easy to install
- A traditional and iconic shed cladding backed up with modern-day technology and design.
Choose your 20 x 40 Shed Colours
The large range of COLORBOND® steel range of designer colours offers a classic and contemporary palette to enhance the beauty of every build.
- Gully™
- Ironstone®
- Monument®
- Paperbark®
- Evening Haze®
- Shale Grey™
- Dune®
- Windspray®
- Pale Eucalypt®
- Wallaby®
- Jasper®
- Manor Red®
- Woodland Grey®
- Southerly®
- Classic Cream™
- Dover White™
- Cottage Green®
- Deep Ocean®
- Surfmist®
- Basalt®
- Bluegum®
- Night Sky®
Colour lead times may vary on certain finishes in some areas. Check with your Fair Dinkum Builds representative before ordering.
The COLORBOND® steel colour swatches displayed have been reproduced to represent actual product colours as accurately as possible. However, we recommend checking your chosen colour against an actual sample of the product before purchasing, as varying light conditions, screens and devices may affect colour tones and finishes.
COLORBOND® steel and ® colour names are registered trademarks of BlueScope Steel Limited. ABN 16 000 011 058.
The large range of COLORBOND® steel range of designer colours offers a classic and contemporary palette to enhance the beauty of every build.
- Gully™
- Ironstone®
- Monument®
- Paperbark®
- Evening Haze®
- Shale Grey™
- Dune®
- Windspray®
- Pale Eucalypt®
- Wallaby®
- Jasper®
- Manor Red®
- Woodland Grey®
- Southerly®
- Classic Cream™
- Dover White™
- Cottage Green®
- Deep Ocean®
- Surfmist®
- Basalt®
- Bluegum®
- Night Sky®
Colour lead times may vary on certain finishes in some areas. Check with your Fair Dinkum Builds representative before ordering.
The COLORBOND® steel colour swatches displayed have been reproduced to represent actual product colours as accurately as possible. However, we recommend checking your chosen colour against an actual sample of the product before purchasing, as varying light conditions, screens and devices may affect colour tones and finishes.
COLORBOND® steel and ® colour names are registered trademarks of BlueScope Steel Limited. ABN 16 000 011 058.
Create a softer, more subtle look with a true Matt finish.
- Bluegum®
- Basalt®
- Surfmist®
- Monument®
Colour lead times may vary on certain finishes in some areas. Check with your Fair Dinkum Builds representative before ordering.
The COLORBOND® steel Matt colour swatches displayed have been reproduced to represent actual product colours as accurately as possible. However, we recommend checking your chosen colour against an actual sample of the product before purchasing, as varying light conditions, screens and devices may affect colour tones and finishes.
COLORBOND® steel Matt and ® colour names are registered trademarks of BlueScope Steel Limited. ABN 16 000 011 058.
More weather protection for steel industrial buildings in coastal and industrial environments.
- Windspray®
- Shale Grey™
- Wallaby®
- Dune®
- Monument®
- Surfmist®
- Woodland Grey®
Colour lead times may vary on certain finishes in some areas. Check with your Fair Dinkum Builds representative before ordering.
The COLORBOND® Ultra steel colour swatches displayed have been reproduced to represent actual product colours as accurately as possible. However, we recommend checking your chosen colour against an actual sample of the product before purchasing, as varying light conditions, screens and devices may affect colour tones and finishes.
COLORBOND® Ultra steel and ® colour names are registered trademarks of BlueScope Steel Limited. ABN 16 000 011 058.
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Paperbark® (topside) / Surfmist® (underside)
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Shale Grey™ (topside) / Surfmist® (underside)
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Manor Red® (topside) / Surfmist® (underside)
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Surfmist® (topside) / Surfmist® (underside)
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Classic Cream™ (topside) / Surfmist® (underside)
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Pale Eucalypt® (topside) / Surfmist® (underside)
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Paperbark® (topside) / Paperbark® (underside)
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Surfmist® (topside) / Dover White™ (underside)
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Woodland Grey® (topside) / Classic Cream™ (underside)
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Classic Cream™ (topside) / Classic Cream™ (underside)
Colour lead times may vary on certain finishes in some areas. Check with your Fair Dinkum Builds representative before ordering.
The double-sided COLORBOND® steel colour swatches displayed have been reproduced to represent actual product colours as accurately as possible. However, we recommend checking your chosen colour against an actual sample of the product before purchasing, as varying light conditions, screens and devices may affect colour tones and finishes.
COLORBOND® and ® colour names are registered trade marks of BlueScope Steel Limited. ABN 16 000 011 058.
Apply MagnaFlow® sheeting to your steel building projects for more durability and extra protection in corrosive environments.
- MagnaFlow® Off White
- MagnaFlow® Birch
- MagnaFlow® Armour Grey
- MagnaFlow® Slate Grey
- MagnaFlow® Monolith
Colour lead times may vary on certain finishes in some areas. Check with your Fair Dinkum Builds representative before ordering.
The MagnaFlow® colour swatches displayed have been reproduced to represent actual product colours as accurately as possible. However, we recommend checking your chosen colour against an actual sample of the product before purchasing, as varying light conditions, screens and devices may affect colour tones and finishes.
MagnaFlow® is a registered trademark of Fletcher Building Holdings Limited.
SuperDura™ Stainless steel is design to provide performance in severe coastal and industrial environments.
- Windspray®
- Dune®
- Deep Ocean®
- Surfmist®
Colour lead times may vary on certain finishes in some areas. Check with your Fair Dinkum Builds representative before ordering.
The SuperDura™ Stainless steel colour swatches displayed have been reproduced to represent actual product colours as accurately as possible. However, we recommend checking your chosen colour against an actual sample of the product before purchasing, as varying light conditions, screens and devices may affect colour tones and finishes.
SupaDura™ Stainless steel and ® colour names are trademarks of BlueScope Steel Limited. ABN 16 000 011 058.
Achieve the design edge you’re looking for with the UniCote® LUX world-first, innovative multi-paint method and stand out from the crowd.
UniCote® LUX finishes are only available in Stramit SharpLine® and Monopanel® cladding.
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UniCote® LUX Silver Quartz
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UniCote® LUX Zinc Graphite
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UniCote® LUX Pentagon
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UniCote® LUX Spectrum
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UniCote® LUX Weathered Iron
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UniCote® LUX Ashwood
Colour lead times may vary on certain finishes in some areas. Check with your Fair Dinkum Builds representative before ordering.
The UniCote® LUX images displayed have been reproduced to represent actual product colours as accurately as possible. However, we recommend checking your chosen colour against an actual sample of the product before purchasing, as varying light conditions, screens and devices may affect colour tones and finishes.
UniCote® is a registered trademark of Colossal Management Pty Ltd.
Choose your 20 x 40 Shed Roller Doors
Taurean NovaTaur®
- These residential roller doors feature a spring system tested to endure up to 25,000 cycles with ease
- Rigid and firm construction for enhanced security
- The stylish and tasteful rounded design is attractive as well as functional.
For total ease of use, the Taurean NovaTaur® roller door system is available with Grifco or Merlin automatic openers.
Taurean NovaTaur®
- These residential roller doors feature a spring system tested to endure up to 25,000 cycles with ease
- Rigid and firm construction for enhanced security
- The stylish and tasteful rounded design is attractive as well as functional.
For total ease of use, the Taurean NovaTaur® roller door system is available with Grifco or Merlin automatic openers.
Taurean Pr1me Shed Roller door
- Includes several built-in safety features and a spring system which is suitable for a lifetime of household use
- High-quality rounded steel panelling is available in sizes as large as 3100mm x 5400mm (Height x Width)
- A robust and reliable option to protect the contents of your shed.
The Taurean Pr1me Shed Roller door can also come with Grifco or Merlin automatic openers.
Taurean Windstrong®
- The Taurean Windstrong® offers optimal protection against high-force winds
- Offers a weather-protected access door perfect for residential buildings
- Features a flexible sealing strip along with its interior which blocks our leaves, dirt or debris.
The Taurean Windstrong® roller door also is available with Grifco or Merlin automatic openers for optimum useability.
Choose your 20 x 40 Shed Roof Pitch
11 degrees
- Subtle, classic gradient which is ideal for garages and residential properties
- Suitable for both monopitch/skillion and gable roof sheds
- 11º is considered a trusted, go-to option for residential builds.
11 degrees
- Subtle, classic gradient which is ideal for garages and residential properties
- Suitable for both monopitch/skillion and gable roof sheds
- 11º is considered a trusted, go-to option for residential builds.
15 degrees
- Its higher interior allows for access to larger vehicles, boats or caravans
- This solid and defined roofline is aesthetically pleasing
- Its effective water run-off system can be advantageous to those who live in high rainfall areas
- Can be paired with both skillion/monopitch and gable roof styles.
22 degrees
- 22º is the ideal pitch to attach solar panels to your shed’s roof
- Large internal clearance space means there is plenty of room for vehicles etc.
- Performs well under harsh weather conditions
- Can be used with both skillion/monopitch and gable roof designs.
30 degrees
- 30º roof slopes easily run off heavy rain
- Massive internal clearance area allows room for a mezzanine, large vehicles or both
- Ideal for those who prefer strong and defined architectural lines
- Suitable for gable roofs only.
45 degrees
- Visually dynamic and impactful roofline resembles that of a church
- Perfect for any heritage-listed buildings
- Withstands rain and other harsh weather easily
- Suitable only for gable style shed roofs.
5 degrees
- The perfect option for residential buildings where looks are everything
- A straight roof gives a shed a more streamlined and contemporary aesthetic
- Can only be used with skillion (or monopitch)
Eave overhangs
- Eaves provide total weather protection to doors and openings
- A popular option for customers who want a clean, modern aesthetic
- Excellent performance in both colder and warmer climates.
Lean-to side walls
- Maximise on the available space by creating a roofed area next to your shed
- Utilise this space either as a veranda or an additional storage area
- Provides an excellent shaded area for a BBQ.
- Can be left open or enclosed with cladding, and can be added to both skillion and gable style sheds.
Step skillion
- A distinctly contemporary and modern looking roofline
- Can be tailored to suit any roof pitches between 5º and 22º
- Ideal for sheds which are close to boundary height restrictions.
Choose your 20 x 40 Shed Extras
Glass sliding doors
- Provide functional access points that also let in natural light
- Offers customers complete freedom over how you utilise your shed
- Increases the amount of air circulation.
Glass sliding doors
- Provide functional access points that also let in natural light
- Offers customers complete freedom over how you utilise your shed
- Increases the amount of air circulation.
Gutter styles
- Can be ordered in a wide range of COLORBOND® steel colour options to suit all styles
- We supply a range of gutters that comply with local or regional requirements
- Check with your local Fair Dinkum Builds outlet for gutter options available in your area.
Insulation
- Increase the overall comfort within your shed – regardless of the weather
- Highly effective heat reflection capabilities that prevent overheating
- Numerous insulation options for customers to choose from with optional R rating.
Open bays
- Increase natural air circulation throughout your shed
- Allow for easy access for vehicles – or use as a shaded outdoor area.
Partitions
- Transform one large space into several smaller ones
- Gives you total control over the floorplan of your shed
- Perfect for making an office space, additional storage or a spare room.
Personal access doors
- Provides easy access or an exit point, without using the roller doors
- Can be made to different widths that suits your requirements
- Available in a wide range of COLORBOND® steel and COLORBOND® steel Matt colour options.
Skylight
- Brighten your shed with natural sunlight
- Save on electricity and heating bills during the day
- Skylights are all constructed using fibreglass or durable and long-lasting polycarbonate sheets.
Stairs
- Available in varying heights to suit the dimensions of your shed
- Allow safe and easy access to a mezzanine
- Choose between a range of wooden or steel stairs.
Storage mezzanines
- Free up floor space
- Get rid of any clutter or large items
- Get the maximum amount of use out of all the available roof space.
Whirlybirds
- Decrease condensation within your shed
- Circulate the air effectively, preventing it from becoming stale
- Allow you to enjoy your shed within the hottest months of the year.
Windows
- Specially designed shed windows that keep the shed watertight
- Attractive aluminium steel finishing for added elemental protection and style
- Features only high-quality AMIA window materials.
Our industry-leading system warranty offers you peace of mind and security. All Fair Dinkum Builds designs are engineered using our unique software solutions and backed by our technical expertise, meaning we'll guarantee they'll withstand wind conditions for 30 years.
That's over and above any materials warranty you get from our suppliers.
Our system warranty is subject to the limitations and qualifications set out in the Warranty Terms and Conditions available here.
Our products are engineered to the highest safety standards and therefore comply with all national, state and territory building code requirements.
Our sheds are also ShedSafe accredited – an industry recognised stamp of approval, so you know that your shed will protect you, your family and your investment.
Common Applications for 20m x 40m Sheds
As you might expect from a structure that spans such a large space, there are plenty of uses for a 20m x 40m shed, including:
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Agricultural Shelters: From storing hay and feed to sheltering expensive farm machinery, a 20 x 40 shed is ideal for anyone looking to build agricultural shelters on the farm. Likewise, they can also be used to protect livestock overnight or during extreme weather conditions.
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Warehousing: Businesses can use 20 x 40 sheds to store their goods ahead of distribution, and the large size doesn't only offer protection but also the ability to organise things effectively for enhanced productivity.
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Workshops: Whether you're into woodwork, metalwork, or are passionate about DIY, with a 20 x 40 shed, you can create a dedicated space with areas for working, storing equipment, and more.
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Storage Building: Gardening equipment, outdoor activity equipment, seasonal decorations, and a whole host of other items can be safely stored in a 20 x 40 shed. You can also organise your items really well across such a large space, making them much easier to find when needed.
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Commercial Buildings: Looking to set up a shop? A 20 x 40 shed can be transformed into a retail space with ease, giving you the space you need to bring your entrepreneurial dreams to life.
Why Build Your 20x40 Shed With Fair Dinkum Builds?
The expert team at Fair Dinkum Builds have decades of experience in designing and constructing custom-made 20 x 40 sheds, so when you work with us, you'll be getting access to an unparalleled level of expertise.
We're also fully ShedSafe accredited, so there's no need to worry about the safety of your shed, and we even provide you with a 30-year system warranty to give you ultimate peace of mind. So, no matter what you're planning to use your shed for, you can rest assured it'll stand the test of time.
FAQs
A 20m x 40m (800m²) shed measures 8,611ft².
Because our 20 x 40 sheds are custom designed to perfectly fit your needs, the total cost will vary depending on the design options you choose. Contact us today to discuss your requirements, and we'll provide you with a quote.
You will need planning permission to build a 20m x 40m shed in Australia. However, as each council has its own building regulations, the planning process varies depending on where you live. This is something we can help you figure out as part of our service.
Fair Dinkum Builds has multiple outlets across Australia, and you can find your nearest here.
Designed specifically with you in mind
No matter what you use your shed for, you'll find the ideal solution at Fair Dinkum Builds. All our sheds are fully compliant with all relevant legislation and built to withstand the harsh Australian environment.