Skip to Content
  1. All products
  2. ​Postal Packaging
  3. Cardboard Mailer Envelopes
  4. Tufpac 180 x 235mm Capacity A5 Cardboard Envelope (Box of 100)
  5. Cardboard Mailer Envelopes
Pricelist: .Website Prices Pricelist
Pricelist: .Website Prices Pricelist
Tufpac 180 x 235mm Capacity A5 Cardboard Envelope (Box of 100)

Tufpac 180 x 235mm Capacity A5 Cardboard Envelope (Box of 100)

The Tufpac® A5 Capacity Book Mailer is a premium 400gsm all-board cardboard envelope measuring 180 x 235mm — ideal for posting books, DVDs, CDs, photos, and greetings cards. The capacity crease design expands to 50mm depth while remaining Royal Mail Large Letter compatible, keeping postage costs low. Features a high-tack peel-and-seal closure and easy-open tear strip. No tape needed. Supplied flat-packed in a box of 100. Fast UK delivery from Datec, Coventry.

£ 26.15 £ 26.15
£ 26.15
  • Product Type
Contact Us
Terms and Conditions
30-day money-back guarantee
Shipping: 2-3 Business Days

A5 Cardboard Envelope (C5)

The Tufpac® A5 Capacity Book Mailer is a premium quality all-board cardboard envelope designed for posting books, DVDs, CDs, greetings cards, photographs, and slim flat items through the post. Manufactured from strong 400gsm solid board at 180 x 235mm, this A5 mailer is designed to fit within Royal Mail's Large Letter format for items up to 18-23mm in thickness — keeping your postage costs as low as possible on every order you send.


The clever capacity crease design allows the mailer to expand to accommodate contents up to 50mm thick while still providing rigid, tamper-proof protection on all sides. A high-tack peel-and-seal closure strip means no tape is needed — simply load your item, peel, seal, and post. An easy-open tear strip provides a professional, frustration-free experience for your customer.


Compared to conventional book wrap boxes, capacity mailers are significantly faster to pack — reducing labour time on high-volume packing lines. The smooth Kraft surface accepts adhesive labels and documents enclosed wallets without additional preparation. Supplied flat-packed in a box of 100 for easy storage. Available in bulk case quantities from our Coventry warehouse with fast UK-wide delivery. Call 02476 611234 for volume pricing.

A5 Cardboard Envelope Key Features:

- Rigid and durable 400gsm solid wall cardboard.

- Recyclable, biodegradable, and contains recycled material.

- Fast peel & seal closure.

- Frustration free easy-tear opening.

- Easily send as Royal Mail large letter size.



Frequently Asked Questions about A5 Cardboard Envelopes

The following questions about A5 cardboard mailers are regularly asked by our customers, if you have any other questions please get in touch with our cardboard mailer team on

02476 611234
or email sales@datecpackaging.com.


Are Cardboard Envelope Mailers better than Bubble Lined Bags?

Yes they are better than bubble lined bags for some items because they are made from stiff cardboard. This gives them better rigidity and higher corner protection which bubble lined bags don't offer.


Do Cardboard Mailers take up less space than Bubble Lined Bags?

Yes, cardboard mailers are just 2mm thick which is well over half the thickness of bubble lined mailers. Great for storage and good for fitting them through the large letter slot too.


How heavy are A5 Cardboard Mailers?

C5 cardboard mailers are just 42 grams each so very light considering they are a very stiff and strong mailer.

A5 Cardboard Envelope Specifications


Product Code: TPSBE05

Internal Dimensions:
Length: 235mm*
Width: 180mm*
Depth: up to 40mm
*Length and width will decrease as depth increases

Material: Solid Board 400gsm
Weight of Mailer: 42g (0.042 kg)
Finish: Brown Recycled


Features:

- Rigid and durable 400gsm solid wall cardboard.

- Recyclable, biodegradable, and contains recycled material.

- Fast peel & seal closure.

- Frustration free easy-tear opening.

- Easily send as Royal Mail large letter size.


Quantity per Pack: 100
Quantity per Pallet: 9'000 (90 packs)

Royal Mail Postal Size: PiP Large Letter


Easy Open Tear Strip: Yes
Self Seal Strip: Yes

Eco Packaging Score: 4/5
 - Recyclable: Yes
 - Biodegradable: Yes
 - Sustainable Materials: Yes
 - Plastic Free: Yes
 - Carbon Neutral: No

People who purchased this item found it by searching for: TPSBE05, A5 Cardboard Mailers, C5 Solid Board Envelopes, Mail Jacket Size 1, Amazon Style Mailers Size 1, C5 Card Mailers, MailJacket Size 1, 180 x 235mm, MJ1, Capacity Envelope Mailers, A1 Cardboard Envelopes, Lil A1