9×12 Storage Shed in Australia: Prices, Sizes, Colorbond vs Zincalume, Council Approval

28 Oct Heavy Duty Sheds

If you’re weighing up a 9×12 storage shed for tools, bikes, or farm machinery, this guide distils what Australian homeowners and renovators ask most: how big is “9×12,” how much is a shed, which materials last in our climate, and what approvals are needed. We reference Australian Standards, local wind regions, and on-ground pricing so you can choose a shed that’s engineered, council-ready, and built to last.

What size is a 9×12 storage shed in Australia?

“9×12” is used two ways in Australia. Confirm which one you mean:

  • Imperial: 9ft x 12ft ≈ 2.7 m x 3.6 m (about 9.7 m²). Typical backyard storage shed for mowers, bikes, and tools; fits a small workbench.
  • Metric: 9 m x 12 m (108 m²). A large rural/industrial shed for farm machinery storage, a custom-built double garage with workshop, or small commercial storage.

Common alternatives people consider:

  • 20 sqm shed (e.g., 4 m x 5 m), often designed to comply with exempt development rules in NSW where site conditions allow.
  • 12×9 shed (imperial) ≈ 3.6 m x 2.7 m — same area as 9x12ft, just rotated.
  • Other popular standard shed sizes Australia: 3 x 3, 3 x 6, 4 x 6, 6 x 6, 6 x 9, 6 x 12, 9 x 12 m, 10 x 6 m, 10 x 10 m, 12 x 6 m, 12 x 8 m, 12 x 9 m.

How much is a 9×12 storage shed in Australia?

Costs vary by wind region (AS/NZS 1170, AS 4055), materials (Colorbond vs Zincalume), slab thickness, door sets, and whether you go DIY shed kits or turnkey install.

  • 9ft x 12ft (≈2.7 x 3.6 m) premium framed Colorbond steel kit: roughly $2,900–$5,500 supply only; $5,500–$9,000 installed; $8,500–$12,000 with slab and electrical.
  • 9 m x 12 m Colorbond rural/commercial shed: kit $19,000–$38,000; installed $35,000–$70,000+ with slab and roller doors; cyclone-rated sheds QLD can exceed this.

Price guide for other requested sizes (indicative 2024–2025, Colorbond steel, engineered to Australian Standards):

  • 12m x 6m shed price: kit $14,000–$28,000; installed $30,000–$55,000
  • 12m x 8m shed price: kit $18,000–$34,000; installed $40,000–$70,000
  • 12m x 9m shed price: kit $20,000–$38,000; installed $45,000–$80,000
  • 10m x 6m shed prices: kit $12,000–$24,000; installed $28,000–$50,000
  • 10m x 10m shed price: kit $25,000–$45,000; installed $55,000–$95,000
  • 12×6 shed price (imperial ≈ 3.6 x 1.8 m garden shed): kit $1,000–$2,500; installed $2,500–$5,500
  • 20 sqm shed: kit $3,500–$9,000; installed $8,000–$18,000, depending on inclusions
  • Industrial sheds prices (bigger spans, heavy duty): typically $200–$450/m² kit; $450–$1,000+/m² turnkey depending on spec and location