Design your grain storage shed with shed designer.
Design your custom grain shed online. Concrete panel walls, sealed bays, BlueScope steel. Free quotes from ShedSafe accredited dealers.
Why choose Grain Storage Sheds?
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What is a grain storage shed?
A grain storage shed is a wide-span steel building with a concrete-panel wall lower section, designed to hold bulk grain on the floor through harvest peak and into the off-season. Most are clad in Colorbond® on the roof and gable ends, framed in 100% Australian-made BlueScope steel, and engineered to AS/NZS 1170.2 wind loading for the actual region (Standards Australia, AS/NZS 1170.2:2021 Structural design actions, Part 2: Wind actions). The wall panels carry the grain push-out load. The roof carries the weather. The bay layout decides how cleanly you can segregate.
ShedDesigner grain shed templates start at 18 m wide for smaller programs and step out to 24, 27 and 30 m for larger storage runs. Pick the closest template, set your span, length, wall height and bay count, then submit your design once for free comparable quotes from ShedSafe accredited dealers in your wheatbelt region.
Sizing by tonnes, not by floor area
Three numbers decide whether your shed earns out at harvest.
Span and wall height set the cubic capacity. A 30 m × 18 m shed with a 3 m concrete-panel wall stores around 1,500 tonnes of wheat. An 80 m × 30 m shed lifts that to roughly 10,000 tonnes (Action Steel, 2025). The 24 m and 27 m spans are the sweet spot before steel cost climbs sharply.
Wall height ties to angle of repose. A 3 m concrete panel wall is the working benchmark across the Australian wheatbelt because it carries common cropping angles cleanly: wheat 22 to 25°, barley 21 to 28°, sorghum 24 to 25°, oats 26°, canola lower again (Action Steel; field research published in Transactions of the ASABE). Above 3 m the panel weight and engineering cost both step up.
Roof pitch should match the stack. Most grain shed builds run an 18 to 25° roof pitch so the internal stack profile sits inside the truss line and the centre fill height matches the side wall capacity (Action Steel, 2025). A 5° industrial pitch leaves capacity sitting on the floor.
If you also need fodder cover or a machinery bay alongside, see hay sheds and machinery sheds.
Bay layout, segregation and sealing
Most working grain sheds run multi-bay layouts with concrete divider panels so you can split varieties, grades or contracts across the same shed. A 24 m × 60 m shed with three internal divider walls gives you four 24 m × 15 m bays; a five-bay layout gives finer segregation but eats floor area on dividers.
Sealing matters separately. Sheds and bunkers carry roughly 12% of Australian on-farm storage, and pest and insect control is the well-documented weakness compared with sealed silos (GRDC, GrowNotes Grain Storage). Aeration cooling through floor ducts blends moisture, lowers grain temperature and slows insect activity, but it does not dry grain on its own (GRDC, Achieving cool grain temperatures through well-designed aeration, 2024). For phosphine fumigation, your storage must be gas-tight to AS 2628-2010, which sheds rarely meet without a sealed inner liner. Most growers run a hybrid: silos for the segregation that has to be sealed, sheds for bulk volume.
Before you get quotes
A grain shed sits in the weather for 30 years and holds grain against it every harvest. Four things worth knowing before quotes go out.
100% Australian-made BlueScope steel. Across structural framing and Colorbond® cladding. BlueScope's COLORBOND® steel cladding for sheds and garages carries a warranty of up to 15 years against corrosion to perforation, with the exact period set by location and application (BlueScope, Garages & Sheds Warranty). Check your build on BlueScope's online warranty estimator.
Fodder and grain storage write-off. Under section 40-548 of the Income Tax Assessment Act 1997, primary producers can fully deduct the cost of a fodder storage asset in the year of installation, with no dollar cap. Grain storage facilities qualify when used primarily for storing fodder produced on Australian primary production land (Australian Taxation Office, Fencing and fodder storage assets). Talk to your accountant before signing the build.
ShedSafe accredited dealers, no exceptions. Every dealer on ShedDesigner is ShedSafe accredited under the Australian Steel Institute programme.
One design, multiple quotes. Your design goes out to dealers in your region. Every dealer prices the same shed, in the same steel, to the same engineering, so the quotes you get back are directly comparable.
Browse the broader farm designs category for related cover.
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Frequently Asked Questions
How many tonnes of grain will my shed hold?
Capacity is span × length × usable wall height × bulk density, divided by stack-loss for angle of repose. A 30 m × 18 m shed with 3 m concrete-panel walls holds around 1,500 tonnes of wheat. A 60 m × 24 m × 3 m shed holds roughly 4,500 tonnes. An 80 m × 30 m × 3 m shed holds about 10,000 tonnes (Action Steel, 2025). The configurator shows you live tonnage as you change dimensions.
What wall height should a grain shed have?
3 metres of concrete panel is the working benchmark across the Australian wheatbelt. It carries the common stacking angles of wheat (22 to 25°), barley (21 to 28°) and canola without forcing taller, more expensive panels. Sheds for sorghum or oats sometimes step to 3.5 m, but past that the panel and footing engineering both step up sharply.
Why concrete panel walls instead of steel walls?
Concrete panels carry the lateral push-out load from grain stacked against the wall. Steel cladding is sized for wind, not for the dead weight of stacked grain pressing sideways. Most Australian grain sheds run concrete panels up to 3 m, then Colorbond® cladding above to the eaves and gable ends. The panels also resist auger and loader wear during clean-out.
What roof pitch should a grain shed have?
Most builders go with 18 to 25° pitch so the internal stack profile sits cleanly inside the truss line and the centre fill height earns its keep (Action Steel, 2025). A 5° industrial pitch wastes capacity. A 30° gable lifts wind exposure without adding usable cubic capacity, so 22° or thereabouts is the cost-efficient sweet spot.
How much does a grain storage shed cost in Australia?
Concrete-panel grain sheds typically cost between $100 and $200 per tonne of capacity including GST and installation, depending on region and span (Action Steel, 2025). An 80 × 30 m shed lands closer to $95 to $115 per tonne thanks to scale; smaller 30 × 18 m builds run higher per tonne.
Can I store grain safely in a shed instead of a silo?
Yes for bulk storage of clean, dry grain at safe moisture, with the caveats that sheds are harder to seal and harder to fumigate than silos. GRDC notes sheds and bunkers carry around 12% of on-farm storage in Australia and that effective insect treatment is more difficult in shed storage (GRDC, *GrowNotes Grain Storage*). Most growers run silos for segregated, sealed grain and sheds for bulk volume.
Do I need aeration in a grain shed?
Aeration cooling is strongly recommended for managing high-moisture grain at harvest and for slowing insect activity. Aeration will not dry grain on its own, but it lowers grain temperature, blends moisture and prevents the hot spots that drive mould and pests (GRDC, *Achieving cool grain temperatures through well-designed aeration*, 2024). Floor ducts under the stack are the most common pattern in shed-stored grain.
Does a grain shed qualify for the ATO fodder storage write-off?
Usually yes. Under section 40-548 of the *Income Tax Assessment Act 1997*, primary producers can fully deduct the cost of a fodder storage asset in the year it is installed, with no dollar cap. Grain storage facilities, silos and hay sheds qualify when used primarily for storing fodder on Australian primary production land (Australian Taxation Office, *Fencing and fodder storage assets*). Confirm with your accountant before submitting the design so you can time the install to your tax year.
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