• Free Delivery On Orders Over $149
  • Free Gift When You Spend $99
  • Family-Owned, Shipping From The Gold Coast
  • 5-Year Replacement Warranty
  • 30-Day Money Back Guarantee
  • Stack & Save When You Mix And Match Sets
  • Join Our Emails For 10% Off Your First Order

Why You'll Love Them

Save up to 60% of your drawer space

De-Clutter Your Drawers

No more rummaging through a jumble of bulky tubs and odd lids. Flat Stacks fold down concertina-style with their lids on, so they stack neatly side by side and you can grab the one you need at a glance.

Holding a light blue Flat Stacks container of red liquid sideways, sealed tight with no leaks
Press the valve, lock it in

100% Airtight Storage

Clip the lid on and press the air valve for a seal that keeps leftovers fresher for longer. Less food in the bin and less money wasted on every shop.

Folds flat with food inside

Squash Them Down As The Leftovers Go Down

Back from the shops and the fridge is full of half-empty containers? Normally you'd tip the leftovers into smaller tubs, then wash up the big ones. With Flat Stacks, just squash them down to fit what's left and slide them back in. Instant fridge space, no extra washing up, and a lifesaver for the Christmas leftovers.

A stack of Flat Stacks containers, each with its own matching coloured lid
Every lid has its match

Matching Colour-Coded Lids

Each container clips into its own matching lid, so you grab the right one first go. Store them with the lids on and the lid hunt is over.

5-Year Replacement Warranty

Built To Last For Years

Thick, rigid, food-grade, BPA-free silicone that holds its shape, even when it's full. Many cheap copies use thinner silicone that folds under the slightest pressure and can crack along the fold lines. Ours resists stains and odours, and is backed by our 5-Year Replacement Warranty and 30-Day Money Back Guarantee.

How They Work

Simple As 1, 2, 3

  1. Fill Them

    Pop them open and fill them with leftovers, meal prep, snacks or lunches.

  2. Clip And Seal

    Clip on the colour-coded lid and push the valve down for an airtight seal.

  3. Squash Them Flat

    Squash them down as you use them, then fold them flat to store when they are empty.

  • Fridge & Freezer
  • Microwave
  • Dishwasher

The difference

Why Flat Stacks Beat Copies, Plastic And Glass

FeatureThe Original Flat Stacks Copy Collapsible Containers Plastic Containers Glass Containers
Folds flat, even with food inside
Won't shatter if dropped
5-Year Replacement Warranty
Food-safe, BPA-free bases and lids VariesVaries
Thick, sturdy silicone walls ––
Airtight clip lid with push-down valve VariesVariesVaries
Colour-coded lids that always match Varies

Compared with typical containers and bakeware. Every Flat Stacks product is backed by our 5-Year Replacement Warranty.

See Them In Action

Watch Flat Stacks fold, stack, cook and store in real kitchens.

Frequently Asked Questions

Is Everything In The Bundle Covered By The Guarantee?

Yes. Every item in the bundle comes with our 30-Day Money Back Guarantee and is backed by our 5-Year Replacement Warranty.

What's The Difference Between Original Flat Stacks And Copy Collapsible Containers?

Copies can look similar online, but you feel the difference in your hand.

  • Thicker, higher-grade silicone. Flat Stacks use thick, food-grade silicone that holds its shape when it's full. Many copies use thinner silicone that collapses with the slightest pressure, even with food inside, and can crack along the fold lines.
  • Stronger lids. We've redesigned our lids to be stronger, longer lasting and far less likely to lose their shape.
  • 5-Year Replacement Warranty on every order from flatstacks.com.au, plus our 30-Day Money Back Guarantee.
  • An Aussie family business. Mother and daughter Julie and Courtney have been improving Flat Stacks since 2014, and we're here to help if anything goes wrong.
What Are They Made Of, And Can They Go In The Microwave?

Flat Stacks food containers have food-grade silicone bases and clip-on, BPA-free hard plastic lids. They go in the fridge, freezer, microwave and dishwasher. Lift the air valve before you microwave to let the steam out.

They don't go in the oven. For the oven, air fryer or BBQ hot plate (never over an open flame), choose Flat Stacks Ovenware: it's all silicone with soft silicone lids, so one dish goes from the oven to the table to the fridge. Washing the lids by hand where you can helps them keep their shape for longer.

Can I Store Soups And Liquids In Them?

Yes, soups, stews and sauces included. Clip the lid on and push the air valve down for an airtight seal. When you carry them, keep them upright and don't squash them into a full bag, so the pressure doesn't push liquid out.

What If I Don't Like Them?

Send them back. Every order comes with our 30-Day Money Back Guarantee: if you're not completely happy, return your purchase within 30 days for a refund.

How Much Is Shipping, And How Fast Is It?

Delivery is free Australia-wide on orders over $149. Under that, tracked shipping is $14.95. Orders leave our fulfilment centre on the Gold Coast, usually within 1 to 2 business days. Standard delivery takes 3 to 10 days depending on where you live, and express (choose it at checkout) usually arrives 1 to 4 days after dispatch.

Didn’t find your answer?

We're always happy to help

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