100% Recycled Contents
Plastic Free
Sustainably Sourced
Eco Friendly Inks
Tear Open Strip
Verified Carbon Neutral

255x204mm Cardboard Envelopes

Product Code: CE1
Availabilty: In Stock

Our plastic-free cardboard envelopes have been created to be multi-functional. They can be used as traditional envelopes but expand for bulkier items like rigid boxes. 100% recyclable and made from 100% recycled content.

Order before 1pm for next working day delivery.

From £0.31

Total Cost:
Order by 1pm Monday - Friday for next day delivery

Subscribe for 15% off your first order & new product alerts

100% Recycled Contents
Plastic Free
Sustainably Sourced
Eco Friendly Inks
Tear Open Strip
Verified Carbon Neutral

Subscribe for 15% off your first order & new product alerts

Looking for something
a little different?


Free Next Day Delivery 6 Days a week

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Parcel Tracking

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1-hour Delivery Slot

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Sustainably Sourced

Related Products

Internal DimensionsStandard Size 250 x 199mm (Expanded 190 x 159 x 55mm)
Material125T/T E
ColourBrown Kraft
End of LifeBiodegradable, Home Compostable, Recyclable
Recycled Content100%
Sealing MethodPeel & Seal


These 255x204mm cardboard envelopes are the perfect way to send flat small to medium-sized items. Designed to have a close fit to the product, you benefit from economical shipping and no wasted packaging materials. The thick cardboard material offers superior protection for your products without excess packaging.

These envelopes make an excellent addition to your packaging operation. They’re user-friendly and are packable in under 10 seconds. Our expandable cardboard envelopes feature a secure adhesive seal and an easy-open pull tab to provide a practical and sustainable packaging solution.

What Features Do Our Cardboard Envelopes Have?

Peel and seal: We are introducing more products to our peel & seal range because they reduce packing time and eradicate the need for additional tape to seal the package. Our corrugated envelopes have an overhanging release paper, making it much easier to remove and speeding up despatch time.

Tear open strip: These cardboard mailers and envelopes have a perforated strip and pull tab, making unboxing a swift and simple experience.

Expandable: Our cardboard envelopes are designed to be expandable, giving you more flexibility with the amount of product you can pack:

CE1 Standard Size 255 x 204mm (Expanded 195 x 164 x 60mm)
CE2 Standard Size 375 x 295mm (Expanded 315 x 235 x 60mm)
CE3 Standard Size 445 x 325 (Expanded 385 x 265 x 60mm).

Custom Printed Cardboard Envelopes

Our cardboard envelopes are fully customisable! For quantities of 10,000 units and over, you can get your cardboard envelopes custom printed. Alternatively, you can get printed labels in quantities of 500 units or more to attach to our standard cardboard envelopes. The flat surfaces on the interior and exterior of the packaging give you plenty of space to promote your brand with custom artwork. If you don’t have a design in mind, our packaging experts are on hand to help with our packaging design services.

Get in touch with our packaging experts for a free printed packaging quote.

Packaging Supplies Sustainability Guarantee

At Packaging Supplies, our 255x204mm cardboard envelopes — and all of the cardboard envelopes in this range — are 100% recyclable and made from 100% recycled contents. We’re a certified carbon neutral packaging supplier committed to helping other businesses lower their carbon footprint and make more sustainable choices with their packaging.

By selecting an experienced packaging supplier with expertise and experience within a large range of industries, you benefit from packaging that will help maximise storage and reduce transport costs. We can assist in providing the most sustainable packaging solutions.

Here at Packaging Supplies, we are big believers in a circular economy. Paper packaging is the closest packaging material to be hitting this goal, with an impressive 85.5% recycling rate in the EU. This is why we have changed our product offering to be completely plastic-free and focus our attention on paper products that can be 100% recycled. This product range is 100% recyclable and made from 100% recycled content.

Frequently Asked Questions

Welcome to our FAQs section on eco-friendly cardboard envelopes! We understand the importance of sustainable packaging and want to provide you with all the information you need to make eco-friendly choices. 

Cardboard envelopes are perfect for small, thin items, including artwork, prints, calendars, books, and small electronics, as well as greeting cards, brochures, catalogues, and other flat items that need to be sent in bulk. The tear-away strip gives consumers access to your products and documents without risking damaging the contents. They make the perfect eCommerce packaging for online retailers looking to reduce package weight and shipping costs without compromising the quality of service.

Yes, these plastic-free cardboard envelopes are 100% recyclable and made from 100% recycled contents. They’re an ideal packaging alternative to plastic mailers and are more streamlined than postal boxes with void fill. You should choose these expandable cardboard envelopes if you’re only shipping small items that don’t need the additional protection of a box and extra packaging.

Yes! For orders of 500 units or more, we offer custom printing services to give your cardboard mailers a personalised touch. Custom printed packaging can help you reinforce your brand identity and give your customers a memorable unboxing experience. This is especially important in the competitive eCommerce sector, where these cardboard envelopes come into their own.

Yes, we offer our cardboard envelopes in three sizes:

Each is available from 50 units to full pallets of 1,650 units or more.

We can offer a suite of Complete Packaging Services, including inventory management and third-party logistics (3PL) for all custom printed cardboard envelopes. If you’re looking to order larger volumes than offered in our shop or wish to order by pallet on a regular basis, please get in touch to speak with one of our representatives today.

Make a sustainable choice for your packaging needs. Explore our plastic-free cardboard envelopes range today.

Deliveries by Couriers

Courier deliveries will be made between 9am – 6pm.

All deliveries must be signed for unless stated in the special instructions when placing the order.

Please open and fully check the contents of your delivery before signing to confirm receipt.

Tracking your parcels

As soon as your goods leave our premises they are tracked until they reach your door!

We partner with DPD for a reason, they offer the most in flexibility and customer service features. Once your goods are picked up from our depot, you will be notified via either the email addressed you provided or by text message on the telephone number you provide during the order process.

On the day of delivery, you will be given a 1-hour delivery slot, this means that you do not need to be in all day like other couriers. Through the DPD app or website you are able to track the route and name of your driver.

Going to be out whilst the delivery is taking place? No Problem, you can either change the delivery address or even request it be delivered to a local pick up point or store. Many stores including Halfords and Sainsburys support DPD pick-ups.

Click Here to visit the DPD website where you can enter your details. Alternatively, if you have a smart phone, you can download the DPD app from the Apple or Android Store.

Pallet Deliveries

Part-pallet or full pallet deliveries will be despatched through our pallet network or on our own vehicles.  You will be notified by email when your delivery is being despatched, but will be unable to track it online.  All pallet deliveries will be made between 8am - 6pm on the next working day.

International Deliveries

Once your order has been placed a quote for delivery will be generated and you will be contact prior to despatch to make payment.

Delivery Timescale

We aim to process and despatch orders for next business day delivery (subject to stock availability). But please allow 2-3 days for delivery.

Orders placed by 2pm Monday to Friday would normally be delivered next day (Sunday and bank holidays Excluded).  Please note pallet deliveries can only be delivered on a working day with Saturdays excluded.

In the event that the product ordered is out of stock, the customer will be contacted with an estimated delivery date.


UK Bank Holidays

Orders will not be processed during UK public bank holidays. Orders will be processed on the first working day back.

Delivery Charges to UK Mainland Destinations

We are extremely happy to announce that we offer free next day delivery to all orders delivered to UK Mainland, with no minimum order value.

Delivery Charges to Other UK Destinations

Deliveries outside of the UK Mainland, will be subjected to the following charges:

Parcel Rates to Northern Ireland

Pack 1 £5.50 per pack

Pack 2 £10.50 per pack

Parcel Rates to Scottish Highlands & Islands

Pack 1 £3 per pack

Pack 2 £6 per pack

Pallet Rates to Northern Ireland

Part Pallet £30 per part pallet

Pallet £35 per pallet

Pallet Rates to Scottish Highlands & Irelands

Part Pallet £30 per part pallet

Pallet £45 per pallet

For International deliveries, please contact us to check delivery cost before placing your order.

Returns Policy

Damaged or Defective Product Returns

If you have received damaged or defective products, we apologise in advance.  Please follow the guidelines below:

Please call us on the following number 01491 834000 or contact us via [email protected] . within 5 working days of receipt of the goods.  Refunds for damaged or defected goods can only be refunded when returned to Packaging Supplies within 10 working days of your delivery.

Packaging Supplies will arrange collection for any damaged or defective goods, however in the event that you miss your arranged collection date or time, then the return of the goods will become your responsibility.

Items must be made ready for collection with an order confirmation printed inside the parcel.

Standard No-fault Returns

Please call us on the following number 01491 834000 or contact us via [email protected] . within 5 working days of receipt of the goods.

Goods must be returned to Packaging Supplies within 10 working days from the date of your delivery.

You must obtain a collection quote from Packaging Supplies for the return of the items, which will vary in cost depending on the order quantity and size.

Items must be made ready for collection with an order confirmation printed inside the parcel.

Refunds will only be issued if all returned items are unmarked, undamaged and in a new condition with the inner packaging unopened.

Custom-made Product Returns

For damaged or defective products, please follow the advice above.

Refunds or returns for products that have been custom made or customized in any way will not be accepted unless they have been delivered damaged or defective.

Packaging Supplies will assess all custom-made return claims for damaged or defective products on a case by case basis.

Very efficient prompt service - good product and for once a company with a sense on pricing. Will use again.

Very good price, good quality and strong packaging, very good and easy no problem service, constant email updates, delivered when promised.

Brilliant fast delivery, came next day of order, always have what I need for a small upcoming business, so glad they don't make you buy too much, perfect boxes, thank you.

Great Service. Very simple ordering process. And great communication to keep updated on delivery.

Very quick delivery and boxes as described. Will order again for sure.

Easy to navigate website and package delivered next day. Product just what I needed and I would recommend this company.

Always on time and amazing service.

Really good quality my customers love them and I have most sizes now of the self seal brown boxes. I really like that Packaging Supplies is always looking to improve their sustainability too.

Service was fast and communication friendly and responsive.

Arrived quickly and in perfect condition and its great to see every part of the packaging was eco friendly. Will definitely be ordering again.

Great service, fast and exactly what they said they would do.

Fantastic customer service! I had an issue with my delivery and it was dealt with and resolved very quickly. I have used the company on numerous occasions - highly recommended for quick delivery and great products.

Completed all my requests with super fast delivery! Brilliant quality boxes too!

Quality products and fast delivery!

Quick delivery, good quality. Will use again!

Good quality product, great price and super fast free delivery!

Very good service and fast response. Product as described 5/5!

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Expert packaging suppliers for over 40 years, with an emphasis on plastic-free packaging

In the late 1970s, two friends and colleagues, Tim Allen and Stewart Middleton saw a gap in the market for a different type of packaging supplier. At the time, other businesses were selling custom made boxes and stocking packaging consumables, but Tim and Stewart wanted to offer more than that. They wanted to give their clients additional services, such as warehouse storage and the ability to have their packaging delivered as and when it was required. Packaging Supplies was established, and the rest is history.