Slimline Water Tanks

Slimline Tanks | Thin Water Tanks | Slimline Water Storage Tanks | Slimline Rainwater Tanks

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Slimline Water Tanks | Thin Water Tanks | Slimline Water Storage Tanks

A slimline water tank is a tank built to narrow dimensions, allowing water storage on properties where the more traditional round water tanks will not fit. They are perfect for residential and business properties where there is not a lot of space or there are access restrictions.

Slimline Water Tank Dimensions | Slimline Water Tank Sizes | Slimline Water Tanks FAQs  | Slimline Water Tanks Best Materials  | Slimline Tanks Capacity Guide | Thin Water Tanks | Slimline Water Tank Prices

Slimline Water Tank Dimensions

Our slimline water tanks can be built to custom sizes, achieving capacities from 150 litres to 8,523 litres. We can customise the tanks to have a width from 550mm to 1150mm, allowing them to fit into those narrow areas alongside the house, shed or fence.

Being able to build your tank from 1000mm to 4000mm long is perfect for fitting these tanks into your desired position without obstructing your view from windows or blocking off pathways.

The height of the tank you choose, is an important factor to consider and being able to manufacture to a range of heights from 300mm to 2350mm high, allows us to manufacture your slimline tank to suit your site perfectly.

Slimline Water Tanks

Please note: not all dimension combinations are available

Slimline Water Tank Steel

Steel Slimline Water Tank

slimline water tank colorbond

Colorbond Slimline Water Tank

Slimline Water tank 1000 litres

8,523 Litre Slimline Water Tank

Slimline Water Storage Tank Capacity Guide

Approx. Capacity  Width x Length x Height (mm)  
1,500 Litres (330 Gallons) 700 x 1600 x 1560
2,000 Litres (440 Gallons) 650 x 2200 x 1560
3,000 Litres (660 Gallons) 850 x 2100 x 1880
5,000 Litres (1100 Gallons) 700 x 4000 x 1880
7,500 Litres (1650 Gallons) 1150 x 3100 x 2350
8,523 Litres (1875 Gallons) 1150 x 3400 x 2350

Slimline Water Tanks Custom Made to Order

Slimline Water Tanks Being Build in Factory

Select Water Tanks custom build each tank to order, which gives our customers the best tank to suit their requirements.

The Slimline tanks come with 3 standard inclusions: A 400mm Inlet Strainer and Light Guard, a 25mm Outlet with Ball Valve, and a 90mm Overflow with Stainless Steel Gauze, all of which can be positioned to your requirements.

Additional fittings, like a bucket height tap or additional 25mm or 50mm outlets and ball valves, can be added to the tank to meet your needs.

Lisa Hagean

Select Water Tanks Google Review Lisa Hagean 

"I recently ordered a 7500 litre stainless steel round tank from Select Water Tanks and couldn't be happier with it. The process from order to delivery was perfect and I was kept in the loop with manufacture times and a set delivery date. Communication was great through the process and I had to change the delivery date to suit me and there was no issue with this.."

Gary Turner

Select Water Tanks Google Review Gary Turner 

"A big thank you to Jason, Linda, Loyd, Damon and the team at Select Watertanks.The whole process ran on time, in fact you were able to deliver all our tanks prior to Christmas.The boys did a great job negotiating our tricky block and setting up the tanks.We highly recommend Select Watertanks"

Paul Inglis


"The team from Select Water Tanks were superb. The way they handled my new tank was especially careful and thorough. It was great watch them take it down a hill and locate on the site. Highly recommended for good product, service and interest in the customers needs."

Barbara Geitz

Select Water Tanks Google Review Barbra Geitz 

"We have just bought 3 tanks and have now installed them. We found Select Tanks very easy to work with right through to delivery. We had to change the delivery date on a number of occasions and it was never a problem. We are very happy with the quality of the tanks which look great."

Thin Water Tanks – Perfect for Limited Space

On residential properties access for a tank delivery can be difficult. This is where the slimline tank designs are great. Access is more achievable to most residential properties, when purchasing a slimline tank, as it can be custom built to allow entry through existing entry points, whether it be a side gateway or through a carport, thanks to the narrow design of the tank.

If space is available, but access is more of an issue the slimline design, still allows water storage of up to 8,523 litres. Multiple slimline tanks can also be used on the property to increase your water storage. Perfect for having your own source of water in times of need. A great idea for your slimline tank is to install a bucket height tap, so you can gravity fill your bucket at any time.

Slimline Water Tank between two houses

Slimline Water Tank in Brisbane Home

With the classic corrugated finish on the slimline tanks they are well suited to a range of properties from the modern, contemporary, colonial, beachside, or rustic styles. Our slimline tanks can be custom built in Stainless Steel or Colorbond materials.

Your slimline water tank colour can be matched or contrasted to your existing colour scheme. See our range of colours available.

Your own harvested water supply is so beneficial if you love to garden, keep your car sparkling or just lower your council water bills. In times of water restrictions, you will still have your own water supply to use for your property, and by lowering the demand on the council or town supply water, you can save some money too.

Slimline Water Tanks Prices

Prices depend on the dimensions of the slimline water tank. Select Water Tanks can manufacture down to a minimum width of 550mm for very tight spaces and up to 8,523 Litres in Capacity.

For a complete breakdown of prices please visit our pricing page below.

Slimline Water Tanks Best Materials

Select Water Tanks make steel water tanks that are longer lasting, better looking, healthier, and can be custom made in terms of shape and size. They can be made from either grade 304, marine grade 316 stainless steel, or colorbond steel

304 Grade Stainless Steel

Grade 304 stainless steel is generally regarded as the most common austenitic stainless steel. It contains high nickel content that is typically between 8 and 10.5 percent by weight and a high amount of chromium at approximately 18 to 20 percent by weight. Other major alloying elements include manganese, silicon, and carbon. The remainder of the chemical composition is primarily iron.In most applications the steel is used where its corrosion resistance gives long lasting appearance and service life. The ease of cleaning and of maintaining a hygienic surface on the steel make it excellent for many purposes.

Our 304 Grade is a good choice if you live inland away from the salt corrosive sea.

316 Grade Stainless Steel

Grade 316 Stainless Steel is a metal alloy, made up of steel mixed with elements such as chromium, nickel, molybdenum, silicon, aluminum, and carbon. Iron mixed with carbon to produce steel is the main component of stainless steel. Chromium is added to make it resistant to rust.

Water tanks made from Grade 316 are perfect for sea-side environments.  They can be easily cleaned, resists organic chemicals, and a wide variety of inorganic chemicals.

Here’s a tip!  Fresh water and air react with the chromium oxide compound that forms a passive layer over the steel,  if damaged the passive film reconstitutes itself. So make sure you give your 316 Stainless Steel water tank an occasional rinse with rainwater.

Colorbond Steel

Colorbond Water Tanks offer great value for money for your Brisbane home. They are built in the classic corrugated finish and come in a range of colours that can be matched or contrasted to your existing colour scheme.

Colorbond Water Tanks have a 20 year non corrosion warranty and a 10 year manufacturers warranty, and are an economical choice for your water tank. Being made from steel, they are built to withstand Australia’s harsh conditions and they will maintain structural integrity in the event of a bushfire, which makes them a good choice for firefighting tanks. We can custom build to your requirements to meet your council’s regulations for bushfire overlays.

Slimline Water Tanks FAQs

What is the biggest Slimline Water Tank?

Currently the biggest Slimline Water Tank is 1150mm wide, by 2350mm high by 3400mm long and this Slimline Water Tank will hold over 8,523 litres of water. Select Water Tanks can custom make your Slimline water tanks to suit your needs. They can range in size from 550mm to 1150mm wide, from 800mm to 2350mm high and from 1000mm to 4000mm long.

Our Slimline water tanks can be made from Stainless Steel or Aquaplate/Colorbond.

Why are Slimline Water Tanks more expensive than Round tanks?

A Slimline Water Tanks are a little more expensive than the equivalent Round Water Tanks. This is because the water pressure equalizes around the whole diameter of a Round Water Tank and there is no need for reinforcement around the sides of the tank.

With Slimline Water Tanks there is a need to reinforce the width of the Slimline Water Tanks with stainless steel rods to make sure the sides don’t expand and collapse under the additional pressure.

The additional costs comes from the cost of the stainless steel rods themselves as well as the labour costs of fixing them to the sides of the tank.

In many instances this additional cost is considered worthwhile because Slimline Water Tanks can be located in prime positions such as along walls, along fences, under eaves or in narrow spaces where Round Tanks would not fit easily. 

Slimline Water Tanks can be worked to fit into the design of a house and its surrounds.

How much are Slimline Water Tanks?

Slimline Water Tanks are slightly more expensive than the equivalent Round Water Tanks as explained in a previous question. This additional expense could range from $500 in smaller tanks to $1000 in larger tanks.

Go to Slimline Water Tanks Pricing for a list of example prices for Slimline Water Tanks in popular sizes.

More Than Just a Manufacturer of Steel Rainwater Tanks

Select Water Tanks custom make round & slimline water tanks that are longer lasting, better looking, healthier, & better for the environment. They can be made from either grade 304, marine grade 316 stainless steel or colorbond steel.

Tailored Solutions

We find the perfect solution for your rainwater harvesting system needs.

Quality Guaranteed

Highest quality Stainless steel water tanks backed by 30 years non corrosion warranty. Our Colorbond Tanks are backed by 20-years non corrosion warranty.

Industry Leading

We are the first Australian company to design and manufacture stainless steel water tanks.

Looking for Help or Advice?

If you need any help with Steel Water Tank Pricing, Custom Sizing, Delivery Charges or anything else
Please contact us today - we are here to help.