Large Letter Cardboard Envelopes Range - Over 35 Sizes

We use cookies to improve your browsing experience.
Find out more here. Continue

Loading
Mobile Menu
Search
Login
Contact Us
Basket
0
Priory Direct Logo
Trust Pilot




You are at the 5+ Rate. Add 4 items to boost your savings.

1+
Rate
2+
Rate
5+
Rate
10+
Rate
20+
Rate
40+
Rate
100+
Rate
200+
Rate

Call us on 01622 580 100
View (£0.00)
Basket
0
Multi-Add

Up to

47%

off

Single

1 Label Per Sheet

Up to

47%

off

Double

2 Labels Per Sheet

Up to

47%

off

Treble

3 Labels Per Sheet

Up to

44%

off

Royal Mail Click & Drop

Matching Label Layouts

Up to

44%

off

eBay

Matching Label Layouts

Up to

43%

off

Amazon

Matching Label Layouts

Up to

44%

off

MyHermes

Matching Label Layouts

Up to

43%

off

ETSY

Matching Label Layouts
View all integrated labels

Up to

30%

off

Standard Bubble Lined Bags

Great value padded envelopes.

Up to

38%

off

Coloured Bubble Lined Bags

Coloured paper outer.

Up to

38%

off

Metallic Bubble Lined Bags

Glossy eye-catching outer.

Up to

27%

off

Plus Bubble Lined Bags

Stonger paper outer.

Up to

26%

off

Poly Bubble Lined Bags

Light, strong, recyclable.

Up to

26%

off

Double Bubble Lined Bags

Double bubble lining.

Up to

25%

off

Original Jiffy Green Bags®

Eco-friendly original Jiffy bags.
Paper Size Icon

Shop By Size

A2 A3 A4 A5 A6
View all bubble lined bags

Up to

44%

off

Board Backed Envelopes

'Do not bend' envelopes with rigid backboard.

Up to

47%

off

All Board Envelopes

White fully cardboard envelopes.

Up to

48%

off

Rigid Corrugated Envelopes

Strong corrugated cardboard envelopes.

Up to

41%

off

Cardboard Mailers

Low Cost Cardboard Mailers as used by Amazon.
Postal Size Icon

Shop By
Postal Size

Letter Large Letter Small Parcel Medium Parcel Large Parcel
Envelope Size Icon

Shop By
Envelope Size

C6 C5 C4 C3 C2
View all cardboard envelopes

Up to

41%

off

Standard Packing Boxes

Fefco Fold & Tape Boxes

Up to

41%

off

Standard Postal Boxes

Pizza Style Postage Optimised Boxes

Up to

41%

off

ColomPac® Postal Boxes

Quick Assembly Peel & Seal Postal Boxes

Up to

38%

off

BDC Boxes

Bulk Distribution Cartons

Up to

47%

off

ColomPac® Pop Up Boxes

Pop-Up Peel & Seal Boxes

Up to

38%

off

CP 181 Bottle Boxes

DHL Certified-Safe Bottle Boxes

Up to

38%

off

Archive / Storage Boxes

Strong, Lidded, Cardboard Storage Boxes
Postal Size Icon

Shop By
Postal Size

Large Letter Large Parcel Medium Parcel Small Parcel
View all cardboard boxes

Up to

44%

off

Economy Book Wraps

Cost-effective option for mailing items.

Up to

44%

off

ColomPac® CP 020 Book Wraps

Reinforced edges and strong corners.

Up to

41%

off

ColomPac® CP 030 Record Mailers

Perfect packaging for vinyl records.

Up to

45%

off

ColomPac® Extra-strong Book Wraps

Double corrugated & burst-resistant.

Up to

46%

off

ColomPac® Cardboard Mailers

Easy-open tear strips as standard.
Postal Size Icon

Shop By
Postal Size

Large Letter Small Parcel Medium Parcel
View all book wraps & mailers

Up to

49%

off

Bubble Wrap

With large or small bubbles.

Up to

47%

off

Biodegradable
Bubble Wrap

Environmentally friendly protective packaging.

Up to

48%

off

Postal Tubes

Perfect for sending posters and prints.

Up to

44%

off

Packing Peanuts

Lightweight and fully biodegradable.

Up to

44%

off

Packing Paper

Available in sheets & rolls.

Up to

43%

off

Corrugated Cardboard Rolls

8 convenient widths.

Up to

26%

off

Paper Void Fill

Machine & rolls available.

Up to

47%

off

Foam Rolls

Anti-abrasive foam cushioning.

Up to

44%

off

Bubble Wrap Bags

Clear & anti-static available.

Up to

26%

off

Paper Mailing Bags

Eco-friendly mailing options.

Up to

47%

off

Tissue Paper Sheets

14 colours available.

Up to

38%

off

Shredded Tissue Paper

12 colours available.
View all protective packaging

Up to

47%

off

Poly Mailers

Wide range of sizes & colours.

Up to

48%

off

Grip Seal Bags

Seal quickly & easily.

Up to

44%

off

Clear Polythene Bags

Made from recyclable LDPE.

Up to

47%

off

Garment Bags

Keep clothes at their best during storage.

Up to

41%

off

Layflat Tubing

Create custom length bags.

Up to

41%

off

Clear Mailing Bags

Ideal for sending printed media.

Up to

47%

off

Cellophane Wrap Rolls

Perfect for decorative wrapping.

Up to

47%

off

Document Enclosed Wallets

Strong peel & seal adhesive.
View all polythene packaging

Up to

41%

off

Packing Tape

Wide range of packing tapes.

Up to

41%

off

Stretch Film

Protect palletised goods.

Up to

34%

off

3M Tape

Reliable market leading brand.

Up to

44%

off

Reinforced Tape

Packs of 36, 24, 18 or 6 rolls.

Up to

41%

off

Floor Marking Tape

High tack adhesion.

Up to

47%

off

Masking Tape

Removes cleanly without marking.

Up to

41%

off

Eco Tapes

100% recycled plastic.

Up to

34%

off

ATG Transfer Tape

5 sizes available.

Up to

34%

off

Fragile Tape

Ensure valuable items arrive safely.

Up to

41%

off

Paper Tapes

Great eco-friendly alternative.

Up to

26%

off

Handy Wrap

Low cost, versatile wrapping.

Up to

27%

off

Office Tapes

Perfect for a variety of office uses.

Up to

38%

off

Shrink Wraps & Shrink Systems

Create tamper proof, sealed enclosures.

Up to

41%

off

Tape Dispensers

Quick & easy way to seal goods.

Up to

25%

off

Machine Tape

Suitable for professional operations.

Up to

38%

off

Pallet Top Covers

Essential for despatching pallets.
View all tapes, wraps & films

Up to

47%

off

A4 Printer Labels

Premium quality Avery style labels.

Up to

29%

off

Coloured Address Labels

Fluorescent and pastel colours.

Up to

44%

off

Thermal Labels

Compatible with a variety of printers.

Up to

41%

off

Packaging Labels

Extra in-transit instructions.

Up to

47%

off

Packing Slips With Labels

Largest online range anywhere.

From

£22.65

Label Dispensers

Keep your packing bench tidy.

Up to

40%

off

Franking Labels

Include branding messages.

Up to

44%

off

Security Labels

Choice of white or blue.
View all labels

Up to

38%

off

Shredded Tissue Paper

Perfect for filling boxes.

Up to

26%

off

Coloured Envelopes

Available in C5 and C6 sizes.

Up to

38%

off

Organza Bags

Perfect for presenting gifts.

Up to

47%

off

Tissue Paper Sheets

Available in a range of colours.

Up to

47%

off

Cellophane Wrap Rolls

Inject colour into your packing.

Up to

44%

off

Packing Paper

Great value options for wrapping & protecting.

Up to

38%

off

CP181 Bottle Boxes

Guaranteed safe delivery.

Up to

41%

off

CP068 Postal Gift Boxes

Requires no extra packing materials.
View all gift packaging

From

£3.70

Printer Paper

A4 & A3 sizes available.

Up to

38%

off

Envelopes

A selection of popular sizes.

Up to

44%

off

Highlighter Pens

Bright, colourful highlighting.

Up to

47%

off

Staples & Staplers

Perfect for home or office.

Up to

43%

off

Scissors

Accurate cutting quality.

Up to

25%

off

Pens

Ballpoint pens & markers.

Up to

22%

off

Postal & Shipping Scales

Ideal for weighing letters & small parcels.

Up to

26%

off

Guillotines

Precise & exact document cutting.

Up to

42%

off

Rulers

Perfect for everyday use.

Up to

39%

off

Post It & Sticky Notes

Available in a range of colours.

Up to

26%

off

Glue

Excellent for everyday use.

Up to

38%

off

Paper & Office Clips

High-quality and durable.
View all office supplies

Warehouse Consumables

Up to

47%

off

Safety Cutters & Packing Knives

Up to

26%

off

Plastic Storage Bins

Up to

38%

off

Refuse Sacks

Up to

41%

off

Floor Marking Tape

Up to

41%

off

Stretch Film

Up to

47%

off

Document Enclosed Wallets

Up to

22%

off

Woven Sacks

Up to

39%

off

String & Twine

Warehouse Machines

From

£52.95

Shelving & Racking

Up to

26%

off

Heat Sealers

Up to

22%

off

Glue Guns

Up to

38%

off

Carton Staplers

From

£289.95

Pallet Trucks

Up to

25%

off

Strapping & Strapping Machines

Up to

25%

off

Packing Stations

Up to

25%

off

Cardboard Shredders
View all warehouse supplies
Accumulator Saver
Accumulator Saver
Mix & match bulk discounts
Direct Rewards
Direct Rewards
1% of everything you spend
Free Samples
Free Samples
Try before you buy
Same Day Despatch
Same Day Despatch
On orders placed before 5pm

Delivery VanOrder in the next for same day despatch.

EU FlagEurope wide delivery.

Large Letter Sized Cardboard Envelopes

Product filter icon

Filters

Applied Filters

  • Envelope TypeFilter Icon
  • ColourFilter Icon
  • Internal DimensionsFilter Icon
    Opening (mm)
    Height (mm)
  • Postal SizeFilter Icon
  • Envelope SizeFilter Icon
  • Eco CredentialsFilter Icon
Back to top
From as little as £7.50 per box of 100

Delivery VanOrder in the next for same day despatch.    EU FlagEurope wide delivery.

Bespoke Bespoke Enquiry Product Guides Product Guides

Our Large Letter Cardboard Envelopes are available in over 35 sizes to suit all needs. These envelopes conform to the sizes set by Royal Mail for sending large letters. We offer a range of large letter size cardboard envelopes in brown, manilla, or white. This range includes Board Backed Envelopes, All Board Envelopes, ColomPac® envelopes, MailJacket™ and MailJacket™ Lite. All of our large letter cardboard envelopes feature a handy peel and seal adhesive closure, which means they are quick to pack and secure in the post.

Displaying 38 of 73  - Sorted by
Multi-Add