Square Set (4-pc) — 350, 540, 800 & 1200 ml

Our square set contains the 4 most useful sizes, perfect for everything from packed lunches to leftovers and baby-food to cold-cuts. 

Here's why you'll love our square set:

✅  Ideal for all things square like sandwiches, cheese slices & brownies.

✅  Perfect as a lunch box!

✅  They look great in your kitchen and are still colour-coded so you can easily match the lids with the bases.

Dimensions:

  1. 350 ml | 11.3 x 11.3 x 6.4cm | collapses to 2.8cm | 110g
  2. 540ml | 13.2 x 13.2 x 6.4cm | collapses to 2.8cm | 142g
  3. 800 ml | 15.2 x 15.2 x 6.9cm | collapses to 3.0cm | 186g
  4. 1200 ml | 17.2 x 17.2 x 7.4cm | collapses to 3.2cm | 232g

Customer Reviews

Based on 252 reviews
92%
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J
Jacqueline

Absolutely gorgeous, will be buying more - happy to retire some old containers even though theyre still functional they don’t bring you joy like these flat stacks do.

J
Jo-Anne Blake
Perfect sandwich storage!!

I love all my flat stacks!! (round-square- and rectangular!
My storage is limited, so they are awesome..
I haven’t tried my oven ones yet, but it will be soon
Thanks for a great product…I have bought some for gifts..💕💜🇨🇦

J
Jillian

Love these. Great for the motorhome.

M
Marie

Lovely colours and good range of sizes. Just bought a 2nd lot to give to my daughter in law for her birthday. My son's family does a lot of travelling for holidays and these will be very handy.

S
Sandra Sagara
Flat Stacks

We love Flat Stacks containers - they are versatile, durable, leakproof, and easy to store. We purchased a set originally at a Christmas show and sale event, and got a lot of use out of them. We wish we could find them in stores for purchase.

C
Cathj
Practical & pretty

Love the square set, good sizes, fits nicely in the fridge & freezer. And love the shades of green 💚



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★★★★★ Reviews

Let customers speak for us

3944 reviews
98%
(3853)
5%
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I already had some flat stacks but needed more. I love flat stacks especially the ovenware because I can do no mess cooking. Im saving up to buy the larger cookware so I can bake cakes and larger quantities of meat. I love my flat stacks

Absolutely gorgeous, will be buying more - happy to retire some old containers even though theyre still functional they don’t bring you joy like these flat stacks do.

Ordered a second set

No more swearing at my container storage drawer!!! I love the quality and the space savings the most. Thank you.

Nice collapsible storage

But a bit pricey. It is well made. Closes securely and the side walls are thicker than most other brands. Recommend!