TankAtlas Australia For suppliers
Tank finder Calculators States & rules Tank sizes Tank types Delivery & install Suppliers Rebates For manufacturers and stockists

Which water tank fits your place?

Answer four questions. We size the tank, draw it to scale, price it and check your state's rules. Then up to three suppliers who deliver to you can quote.

See your 9,500 L tank
9,500 L

Poly round tank

Diameter
2.60 m
Height
2.15 m
Indicative price
$1,826
Size this tank in detail Rules in Queensland

4 people at 60 L a day for toilets and laundry and 30 dry days covered (our assumptions). Shown full: at about 240 L a day it lasts 40 days without rain. Your roof collects about 183,840 L in an average year at Brisbane rainfall; how fast it refills depends on when the rain falls, so check your local pattern with BoM. Prices are the lowest and highest listed prices we saw on 13 Nov 2026.

21suppliers listed, each with a source
8states and territories, rules checked
5calculators, free to use
2.3MAustralian households used a rainwater tank in 2013 (ABS)

Work it out before you spend a cent

Every number on a quote, checked in advance: size, base, fire water, delivery access and the full cost.

Tank finder

Six short steps from your roof to a shortlist: size, material, base, approvals and suppliers who deliver to your postcode.

Start the finder

Size

Litres from your roof, rainfall and daily use.

Calculate size

Foundation

Pad size, depth and material for any tank.

Plan the base

Bushfire water

Litres, material and fittings your state asks for.

Check fire rules

Delivery access

Gates, slopes and distance: roll it in or crane it.

Check access

Full cost

Tank, base, plumbing and pump, minus any rebate in your area.

Estimate the total

Start from where you are

Suburban home

Garden, toilets and laundry on tank water.

Building a new home

BASIX or council sets the minimum. We show it.

Farm and stock

Big poly and steel liner tanks, priced side by side.

Bushfire area

Fire water rules for VIC, NSW and SA, with fittings.

Plumbers and builders

Specs, bases and delivery access for your client's site.

Manufacturers and stockists

Get enquiries from buyers in your delivery area.

Every state writes its own tank rules.

A 10,000 L tank is exempt in NSW, needs a building permit in WA and can need a planning check in Victoria. Fire water must be metal or concrete under Victoria's Bushfire Management Overlay. Each state page lists the approvals, fire rules, new-home rules, rebates and checked suppliers, with a source for every rule.

Compare the rules
NSWSydney: 1,213 mm rain a yearQLDBrisbane: 1,149 mm rain a yearVICMelbourne: 648 mm rain a yearSAAdelaide: 547 mm rain a yearWAPerth: 727 mm rain a yearTASHobart: 611 mm rain a yearNTDarwin: 1,732 mm rain a yearACTCanberra: 615 mm rain a year

Real tanks, drawn to scale

All sizes
Ø 1.84 m 2.15 m 1.8 m

Tankworld 5,000 L

Ø 1.84 × 2.15 m, as listed

 3.04 m long · 0.76 m wide 1.87 m 1.8 m

Duraplas SL3000SQ slimline

3.04 × 0.76 × 1.87 m, as listed

 Ø 3.78 m 2.56 m 1.8 m

Bushmans TXD5000, 22,500 L

Ø 3.78 × 2.56 m, as listed

 Ø 11.65 m 2.20 m 1.8 m

Kingspan Rhino RT-230, 234,562 L

Ø 11.65 × 2.2 m, as listed

Make and sell tanks? Your customers are already here.

Buyers on TankAtlas have sized their tank, checked their rules and given a postcode before they ask for a price. You receive the enquiry with the details already filled in.

  1. Free listingYour brand, range and delivery area in every comparison.
  2. Enquiries by postcodeSized, approved and ready to quote. You only pay for the ones you take.
  3. Your own shop on TankAtlasCatalogue, stock and delivery zones you manage yourself.