More Steel. Closer Spacing. More Support.
✓ 76mm × 2.5mm Heavy-Duty Arch Tube — beyond typical 1.8–2.0mm alternatives.
✓ 9 Arches at 1.5m Spacing — vs. typical 7 arches at 2.0m spacing.
✓ Grade 8.8 High-Tensile Bolts · No-Weld Lock-Clamp System
Factory-direct pricing with no dealer markups.
$7,190 Incl. GST
✔ Melbourne Warehouse Stock
✔ Dispatch in 3–5 Business Days
✔ 10-Year Structural Warranty
Incoming Stock: Early November 2026 — Pre-Order Now & Save an Extra 5%
Forklift or telehandler recommended for unloading. Depot pickup available.
"More Steel. Closer Spacing. Built for a Serious 12-Metre Span."
A 12-metre clear span places greater demands on the frame, which is why the TS1212(3m) is built with heavier steel and closer arch spacing.
✔ 76mm OD × 2.5mm Heavy-Duty Arches — substantially more steel than lightweight 1.8–2.0mm-wall alternatives.
✔ 9 Arches at 1.5m Spacing — compared with the 7 arches at 2.0m spacing commonly found on 12m-long alternatives. That means 29% more arch frames across the same shelter length.
✔ 1,300kg Total Package Weight — 200kg heavier than comparable 12m-wide shelters at approx. 1,100kg. That extra weight comes from the heavier steel frame and closer arch spacing.
✔ Grade 8.8 High-Tensile Bolts — used throughout the structure, compared with the Grade 4.8 bolts commonly used on other competing domes. Here's why that matters.
✔ No-Weld Lock-Clamp System — secure container mounting without welding, simplifying installation and allowing the shelter to be relocated if required.
✔ 610gsm UV-Treated PVC Cover — heavy-duty, fire-retardant and waterproof protection for machinery, vehicles and stored assets.
Model | TS1212(3m) |
Floor Area | 144.0 m² (Clear-Span) |
Dimensions | 12.0m (W) x 12.0m (L) x 3.0m (H) |
Arches | 9 Arches (76mm x 2.5mm) at 1.5m spacing |
Purlins | 5 Purlins (60mm x 1.5mm) |
Cover | Heavy-duty 610 g/m² White PVC (UV & Fire Resistant) |
Hardware | Grade 8.8 High-Tensile Bolts throughout |
Suitability | Designed for 40ft Containers (GP & High Cube) |
Mounting | Signature No-Weld Lock-Clamp System |
Package Size | Two of 265x110x73cm (1300 kg) — competitors: 1050–1200kg |
The TS1212(3m) is supplied open-ended as standard. Add end walls or doors to fully enclose your shelter:
● 12m Half End Wall — Top half enclosed, bottom half open for forklift and ground-level access
● 12m Door Or Full End Wall — Drive-through access for vehicles and machinery, Or Fully enclosed panel.
● White — In stock (best for heat reflection and UV resistance)
● Silver Grey — Available by pre-order
● Olive Green — Available by pre-order
White is stocked as standard due to its superior performance in Australian conditions.
On a 12m-wide shelter, frame design is about more than steel thickness. Arch spacing also determines how frequently the roof structure is supported along the length of the shelter.
The TS1212 uses 9 arches across its 12m length at 1.5m centres, compared with the 7 arches at 2.0m spacing commonly used on similar-sized shelters. This provides more support points along the shelter and reduces the unsupported distance between arches.
Combined with 76mm × 2.5mm arch tubes and 60mm × 1.5mm purlins, the closer spacing is a key part of ToughCover's heavy-duty approach to a 12m span.
The TS1212 is engineered with Australian conditions in mind, with structural design based on AS/NZS 1170.2:2021 wind actions.
From its 76mm × 2.5mm heavy-duty arches and 1.5m arch spacing to Grade 8.8 high-tensile bolts and No-Weld Lock-Clamp mounting, the TS1212 combines heavy-duty construction with a practical, installation-friendly design.
See the complete installation process from frame assembly and arch positioning through to PVC cover installation.
▶ Watch the Container Dome Installation Video
Prefer step-by-step instructions? View our Container Dome Installation Guide.
● Forklift Required — At 1,300kg, a minimum 2.5-tonne capacity forklift is required for unloading. Please have one on site before delivery arrives.
● No Forklift? — Let us know before dispatch and we'll coordinate unloading arrangements.
● Melbourne Warehouse Pickup — Self-collection available. Ensure your vehicle or trailer can handle the 1,300kg package. Free forklift loading provided.
● DIY-Friendly Kit — No-weld Lock-Clamp assembly. No specialist trades required. Two free spanner kits included with every order.
● Professional Installation Available — Optional on-site installation service within Victoria.
Q: Does the TS1212(3m) cover two 40ft containers side by side? A: Yes — the 12-metre width spans two standard 40ft containers placed side by side, with the 12-metre length running along the containers.
Q: Why does the TS1212(3m) use 9 arch sets at 1.5m spacing? A: A 12-metre long shelter needs consistent load distribution across the full length. Nine arches at 1.5-metre centres gives the frame more contact points to spread the roof load evenly, reducing stress at each individual arch.
Q: Why does the TS1212(3m) weigh so much more than budget alternatives? A: It comes down to steel. Our 76 x 2.5mm tube has significantly more steel per metre than the 1.8mm or 2.0mm tube most budget suppliers use. Across nine full arches on a 12-metre span, that difference adds up fast — and it shows in the 1,300kg shipping weight.
Q: Are end walls available for the TS1212(3m)? A: The TS1212 ships open-ended. End walls and roller doors are available separately — see our End Walls & Doors range.
Q: What's the difference between the TS1212(3m) and the TS1206(3m)? A: Same 12-metre width, same steel spec, same arch spacing. The TS1212(3m) is 12 metres long (vs 6 metres for the TS1206(3m)), covers 144m² (vs 72m²), uses 9 arch sets (vs 5), and mounts with 18 Lock-Clamps (vs 10). It's designed for 40ft containers rather than 20ft.
Q: Is the 610gsm PVC cover fire-retardant? A: Yes. Every TS1212(3m) ships with a heavy-duty 610 g/m² UV-treated PVC cover that is fire-retardant and 100% waterproof.
Ready to get a price for your site? Call us or send through a quote request — we'll come back with a full delivered price including freight to your location.
Melbourne warehouse stock. Australia-wide delivery. Professional installation available in Victoria.
