# Optimal Products 21544 35 L Clear Plastic Storage Box with Lid

Optimal Products 21544 is a clear plastic storage box listed at 35 litres, with a lid and stackable design. Its stated dimensions make it a potential fit for compact household storage, but the listing conflicts on whether the selected set contains four or five boxes.

- [Original product page](https://bargainpostbox.co.uk/product/optimal-products-21544-35-litre-clear-storage-box)
- [View offer](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Optimal Products
- Model: 21544
- Category: Home & Kitchen > Home Storage & Organization
- Price: 30.87 GBP
- Previous price: 37.95 GBP
- Discount: 19%
- Price checked: 2026-11-12T18:10:26.694Z
- Rating: 4.2 / 5
- Reviews: 915

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Clear base and clear lid are claimed, allowing contents to be seen without opening the box.
- The listing says the boxes can be stacked with or without the lid attached.
- The claimed 45 x 35 x 23 cm size and 35-litre capacity give a practical reference for checking available space.

## Pros

- Transparent plastic can make stored items easier to identify.
- The stated stacking design can help organise storage vertically.

## Specifications

### Identity
- Brand: Optimal Products
- Model: 21544
### Capacity and dimensions
- Capacity: 35 litres
- Storage volume: 35 Liters
- External dimensions: 45L x 35W x 23H centimetres
### Design and use
- Form factor: Rectangular
- Material listed: Plastic
- Lid: With Lid
- Opening mechanism: Lift-Off Lid
- Closure type: Gull Wing
- Water resistance listed: Not Water Resistant
- Stacking: All These Boxes Are Stackable 5l, 11l, 24l, 28l Underbed, 35l & 45 Litre Storage Container Is Ideal For Storing Small, Medium To Large Sized Items Such As Cloths, Stationary, Household Cleaning Items, Car Products Etc...

## Before you buy

- The stated dimensions are approximate and listed as external measurements. Measure the intended storage space before ordering.
- The listing is contradictory about quantity: the title says 5 boxes, while a feature says a set of 4. The selected pack quantity is unconfirmed. It also gives conflicting item counts and descriptions of the lid closure, and says the lids may stack with or without attachment. Confirm the selected variant and lid design before buying.

## In the box

- Boxes with lids (Check selected pack): The explicit contents listing says boxes with lids, but the title and a feature disagree on whether the selected set contains five or four. Check the selected listing.

## A good fit for

- People organising shoes, clothing, stationery or other household items who want clear, stackable containers.
- Buyers who have checked that the stated external dimensions fit their intended shelf or under-bed space.

## Less suited to

- Anyone who needs confirmed pack quantity or a reliably locking lid without first clarifying the selected listing.
- Anyone needing water-resistant storage, as the listing states that it is not water resistant.

## Customer feedback

Customer feedback highlights appreciation for the boxes' size, quality, stackability and usefulness for under-bed storage and smaller items. Reports about sturdiness and fit are mixed, while some customers say lids do not click shut or stay in place. That makes the listed dimensions useful for planning space, but lid retention and the conflicting pack quantity matter if the boxes will be moved or stacked.
- Positive themes: Customers appreciate the size and usefulness for smaller items and under-bed storage.
- Positive themes: Customers describe the boxes as stackable.
- Negative themes: Some customers report that lids do not click shut properly or stay in place.
- Mixed feedback: Feedback on sturdiness is mixed, including reports of cracks on arrival.
- Mixed feedback: Feedback on fit is mixed.

## Frequently asked questions

### How many boxes are included?
The listing conflicts: its title says five boxes, while a feature says the set contains four. Confirm the quantity for the selected option before ordering.
### What are the stated dimensions and capacity?
The listing gives approximate external dimensions of 45L x 35W x 23H centimetres and a capacity of 35 litres.
### Does the lid lock shut?
The listing describes a lift-off lid and also gives a gull-wing closure type, so the closure design is unclear. Customer feedback also reports that some lids do not stay shut reliably.
### Can these boxes be stacked?
The listing says they are stackable with or without the lid attached. Customer feedback describes positive experiences with stacking, alongside mixed reports about fit.

## Alternative options

- [4 x 45 Litre Plastic Storage Boxes with Lids Set of 4, Clear Multipurpose Nestable Stackable Plastic Storage Box 45L Clear Containers Boxes For Home, Kitchen, Office, Garage, Accessories](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)
- [3 x Storage Boxes With Clip Lock Lids Litre Heavy Duty Clear Stackable Lockable Multipurpose Plastic Storage Box Indoor Outdoor Containers Home,Office,Kitchen,Garage \(3 x 32 Litre Underbed\)](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)
- [Optimal Products Clear Plastic Storage Box With Lids UK BRITISH MADE Home Office Stackable Transparent Plastic Boxes, Size 5,11,24,28,35,45,62 Litre \(43 Litre Underbed, 5 Boxes\)](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)
- [KLASS 4 PCS 30L Plastic Storage Boxes with Lids, Clear Underbed Storage Box \| 4 Pack, 30 Litre Multipurpose Nestable Stackable Storage Box, Clear Plastic Storage Containers For Home, Kitchen, Office](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)
- [Klass 3 PCS 50L Plastic Storage Boxes With Lids, Cliping Lid Clear Storage \| 3 Pack, 50 Litre Nestable Stackable Storage Box With Clip-lock Lid, Storage Containers For Home, Kitchen, Office, Garage](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)
- [Knight 40L Stackable Open Storage Boxes \| Multi-Purpose Plastic Storage Containers for Home, Office & Garage \| Storage Bins for Clothes,Toys, Tools & Household Storage \| Grey - 4pack](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)
- [ORGANIZED 80L Large Plastic Storage Boxes with Black Lids, Pack of 5](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)
- [3 x 32L Underbed Plastic Storage Boxes with Lids Set of 3, Clear Multipurpose Nestable Stackable Storage Box 32L Clear Containers Boxes For Home, Kitchen, Office, Garage, Accessories Uses](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)
- [Froppi Storage Boxes - Plastic Storage Boxes with Lid, 5 Pack 50L \(Grey\) \| Wheels, L55 W39 H31 cm, Stackable, Lockable Lid, Large Capacity, Handles, Durable, Easy to Use, Portable, Quality Plastic](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)
- [30L Storage Box with Lid, Clear Transparent Plastic Storage Box, Super Strong Stackable Storage Boxes, Multipurpose Useful Organizer for Home, Office, Kitchen & Accessories \(Pack of 4\)](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)
- [3 x 45 Litre Plastic Storage Boxes with Lids Set of 3, Clear Multipurpose Nestable Stackable Storage Box 45L Clear Containers Boxes For Home, Kitchen, Office, Garage, Accessories Uses](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)
- [Plastix Clear Plastic Storage Box Boxes With Black Lids Home Office Stackable UK Made \(5, 30L\)](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)

## Add-ons

- [SIDSONS - 3x 32L Clear Plastic Underbed Storage Box with Lid - Space-Saving Nestable & Stackable Multi-Purpose Storage Boxes](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)
- [BH \| 20L - 2 PCS Clear Plastic Storage Box with Lids \| Clip Handle \| Containers for Home, office, Kitchen, Toys and Goods - B](https://bargainpostbox.co.uk/visit/optimal-products-21544-35-litre-clear-storage-box)

## Images

![Optimal Products 21544 35 L Clear Plastic Storage Box with Lid — 1](https://bargainpostbox.co.uk/i/6R9uwL2qNqn_siONXCyp_Ny-ujGX3c_9XtxM6lmSS5Iins99LcXqV0aBsQqd7aPGHrRruHpnQFmmF3olZNA32omWvrC6OVCGyi5ECADQhb62bHUp08Hov-ih.jpg)

![Optimal Products 21544 35 L Clear Plastic Storage Box with Lid — 2](https://bargainpostbox.co.uk/i/WYvfGgN77HsGBrlHoVbTeBf5DY3OQ9l4pnRXF6r01-yJKIX8BSdHSOpm5YmtPfbDOFGYVUDgGizWhXuO4mH30-4Kccwk_vpPW8iBsB2dRSfXbn1AwXtvKYjf.jpg)

![Optimal Products 21544 35 L Clear Plastic Storage Box with Lid — 3](https://bargainpostbox.co.uk/i/ptE1rjONkstblTTuox6xOKJxNg4gViZkc_zSqEd38yAiojpgao4aOXC7sldEQA04ZBMeWDbBPLZwHYEqdanWX-J6-iqQLX_LeBHwyIUFUiuQDwnkaOJgbIrj.jpg)

![Optimal Products 21544 35 L Clear Plastic Storage Box with Lid — 4](https://bargainpostbox.co.uk/i/EgzUCqbery-4b7Q_M8ZiEPKtkfmIkXAvVIDLNVFqP83iu9mADj2twqLP0tzwLD8Z1s-t5O5EaXFuy0iQbF14hdm_EpnMnLR3ZETi5FKuG4gnqE3tzccTjOHV.jpg)

![Optimal Products 21544 35 L Clear Plastic Storage Box with Lid — 5](https://bargainpostbox.co.uk/i/O3yCXUhS2mNHRtWyYR6e5EmwoF7isfbEsuWBApHStjNS6fz4U25YdCfXKKHb575oti28UDPh0Po4JNf7uFInSCcZOTf06C0RbhVnezGMt-kSukjeeP28vI74.jpg)

![Optimal Products 21544 35 L Clear Plastic Storage Box with Lid — 6](https://bargainpostbox.co.uk/i/dUO23Ppz6ayYqVr4j6NAcVnInvNNVxhFT21Rn5GAYNMj5QmfIUYUO_4A9cZ_F3KpxGEM9h1BNlUaID7PzWJtHemmg5ByylMZHsn8jsfLfo_f8laVyjD1KWGL.jpg)

![Optimal Products 21544 35 L Clear Plastic Storage Box with Lid — 7](https://bargainpostbox.co.uk/i/NVEyXfa-E6dmuwDnVPX0xU-KRFyhzjSNLqpwanHLUL8Q4sMwKV7vxF9_-pVadK17I-TBWqfxi6x4VFrWm0RkpgthKAlGcy-nkwxRdSBnXV9sX_YtccLEVJCp.jpg)