Top 10 Reinforced Envelopes A3 UK – Envelopes

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1. Triplast

Triplast 457 x 324 mm A3 C3 Manilla Hard Board Backed Envelopes Pack of 10

Triplast - A3 / c3 size 457 x 324 mm + Lip to seal. Manilla brown colour, solid back 115 microns thick. Triplast branded, self sealing peel and seal strip. Model number: A3 C3.
BrandTriplast
ManufacturerTriplast
Height0.2 cm (0.08 Inches)
Length32.4 cm (12.76 Inches)
Weight0.11 kg (0.25 Pounds)
Width45.7 cm (17.99 Inches)
Part NumberA3 C3
ModelA3 C3

2. Blake

Pack of 50, Blake Purely Packaging C3 A3 450 x 324 mm Board Back Pocket Peel & Seal Envelopes 4200/50 Manilla

Blake - Strong peel & seal closure for ease of use, additional security and longer shelf life. Make a difference to your mail with these Purely Packaging Board Back envelopes by Blake. Printed do Not Bend on the front. Heavy duty board Back to protect certificates, photographs, prints and more. Printed 'please do not bend' on the face for extra safety.
BrandBlake
ManufacturerBlake Envelopes
Height10.5 cm (4.13 Inches)
Length46 cm (18.11 Inches)
Weight2.49 kg (5.49 Pounds)
Width33.5 cm (13.19 Inches)
Part Number4200/50
Model4200/50

3. Habercrafts

6 Wallets, Tuff Bag A3 Zip Bag Wallet Clear Document Folder File See Through Zipper Pouch Reinforced Plastic Money Bags to Fit A3-34cm x 45cm

Habercrafts - Each bag has a hanging loop which Matches The Colour Of The Zip Blue/Black/Red. Available packs of 1 to 12 in 7 sizes - a3 45cm x 34cm, dl 11cm x 23cm, a4 25cm x 36cm, mini 7cm x 15cm, a5 17.5cm x 23cm, pencil case 13cm x 33cm And Triple Pack Mini/DL/A6.

Great for office, photos, important documents, letters, travel and Home; Perfect For Storing Puzzle Pieces, Receipts, cosmetics cheques, money, Paper, Household Bills, text books, school, Vouchers And Much More. Extremely durable, our strong plastic pouches are made Of Heavy Duty Thickened Mesh Fused Material And Are Very Strong As Well As Being Water Resistant And Lightweight.

Habercrafts heavy duty a3 tuff bag zip files, each Wallet Measures 45cm x 34cm And Is Deigned To Fit A3 Size Items. Easily keep your documents, keepsakes and contents organised and safe on the go from Water, Dust And Damage. The translucent pouch keep contents easily Visible And Organised, Making Finding Documents And Items Easy To Find Without Opening Your Folders.
BrandHabercrafts
ManufacturerHaberCrafts
Part NumberHC_TUF_A3_6_D

4. STORM TRADING GROUP

20 Gold Padded Bubble Envelopes A3 340 x 445mm STG 10 K

STORM TRADING GROUP - Gold padded bubble mailers Size 10 340 x 445mm. Manufactured from thick FSC paper. Extremely lightweight this means postage costs are always low. Easy to use - simply insert your item and seal the envelope. Bubble lined - Provides complete coverage & protection for your items.
BrandSTORM TRADING GROUP
ManufacturerSTORM TRADING GROUP
Part NumberMEGL_340x445mm_94

5. Smukdoo

Smukdoo Plastic Zip Wallet Folder,5PCS Document Folder A4 File Zipper Bags Plastic Wallet Folder Zip Lock Bags.

Smukdoo - High quality:the a4 zip folder are made of PVC, thicker than normal plastic bags, reinforced with a mesh, Sturdy and Strong. Plastic zip folder size:33.

3x23. 5cm, the plastic bag are in A4 Size. Wide usage: a4 file zipper bags are great for store documents, text books, letters, photos, A4 papers, bills, cosmetic ect. More color for choice:mesh file folder contains 5 PCS in 5 Colors, Easy to classify different documents as per you needs. The zip folders are semi-transparent, easy to recognize items inside, there are 5 colors, with a zipper and rope hook. Easy to carry, Help you find out the documents. It's very strong and durable, water resistant.
BrandSmukdoo
ManufacturerSmukdoo
Part NumberZipper Bag
ModelZipper Bag

6. Packitsafe

Packitsafe 10 x Board Backed A3 Envelopes Strong Self Seal Please Do Not Bend

Packitsafe - Ideal to use for photographs, certificates, cards, letters. High quality Strong Self Seal adhesive strip. Quick and easy to use, simply insert document, peel the slip and seal. 100% environment friendly as they made from recycled materials. Heavy duty, lightweight.
BrandPackitsafe
ManufacturerPackitsafe
Part NumberPIS - BBEA310

7. Boxclever Press

Dec'22. Calendar 2022 Family Planner with Pocket & Stickers 2022-12 Month, Boxclever Press Family Weekly Planner 2022 Calendar. Wall Calendar 2022 with 6 Columns. Family Calendar 2022 Runs Jan

Boxclever Press - When shopping online or instore, knowing exactly what you need will save time, money & help reduce food waste. 2022 calendar family planner with a weekly to-do list & perforated shopping list. Calendar 2022 wall with colourful stickers to highlight important dates.

Family organiser calendar 2022 runs Jan - Dec'22. 2022 wall calendar with a 6 column weekly layout, space for everyone's plans, lists & more. Perfect for the whole family to see what events are coming up each week, this 2022 family calendar also has space for useful numbers and birthdays, a paperwork pocket & pen to write on the overlay.

Simply title each column and note down all individual plans beneath. Use the clear plastic overlay to write down recurring weekly activities and move from week to week to never forget your plans. Cleverly designed family planner 2022 with columns for up to 6 family members, work activities, pets or even meal ideas. Stunning 12 month wall calendars 2022 for busy families.
BrandBoxclever Press
ManufacturerBoxclever Press
Height1 cm (0.39 Inches)
Length30 cm (11.81 Inches)
Width30.5 cm (12.01 Inches)
Part NumberFWP12-22

8. Habercrafts

A3 Tuff Bag Zip Wallet Clear Plastic Wallets Zipped Pouch File Pencil Case Folder Water Resistant Reinforced Heavy Duty Mesh Bags Fits A3-1 Pack

Habercrafts - Available packs of 1 to 12 in 7 sizes - a3 45cm x 34cm, dl 11cm x 23cm, a4 25cm x 36cm, a5 17.5cm x 23cm, mini 7cm x 15cm, pencil case 13cm X 33cm And Triple Pack Mini/DL/A6. Great for office, travel and home; perfect for storing puzzle Pieces, text books, household bills, cosmetics cheques, School, photos, Important Documents, money, receipts, letters, paper, Vouchers And Much More.

Habercrafts heavy duty a3 tuff bag zip files, each Wallet Measures 45cm x 34cm And Is Deigned To Fit A3 Size Items. Extremely durable, our strong plastic pouches are made Of Heavy Duty Thickened Mesh Fused Material And Are Very Strong As Well As Being Water Resistant And Lightweight.

Easily keep your documents, dust and damage. Each bag has a hanging loop which Matches The Colour Of The Zip Blue/Black/Red. The translucent pouch keep contents easily visible and organised, Keepsakes And Contents Organised And Safe On The Go From Water, Making Finding Documents And Items Easy To Find Without Opening Your Folders.
BrandHabercrafts
ManufacturerHaberCrafts
Part NumberHC_TUF_A3_1
ModelHC_TUF_A3_1

9. Triplast

Triplast 324 x 229 mm A4 C4 Manilla Hard Board Backed Envelopes Pack of 20

Triplast - Model number: A4 C4. A4 / c4 size 324 x 229 mm + Lip to seal. Manilla brown colour, solid back 115 microns thick. Triplast branded, self sealing peel and seal strip.
BrandTriplast
ManufacturerTriplast
Height0.2 cm (0.08 Inches)
Length22.9 cm (9.02 Inches)
Weight0.06 kg (0.12 Pounds)
Width32.4 cm (12.76 Inches)
Part NumberA4 C4
ModelA4 C4

10. UKPS

340 x 445mm / 13.5 x 17.5" Postal Packing Mailing Shipping Postage Posting Self Seal Packaging Bags Mailers, 10 Large A3 Size Peel + Seal Gold Padded Bubble Envelopes

UKPS - These quality bubble mailers are manufactured to ensure your mailing is made simple. These quality mailers offer secure protection whilst your goods are in transit.

Size provided in inches and millimetres. These padded bags are excellent quality thick padded envelopes, manufactured in the uk. The best quality for the best price, and perfect for mailing all your ebay items. Their lightweight will help keep your postal charges to a minimum. These envelopes come with a self seal lip, remove the strip on the flap and seal it, basically place your item inside, it couldn't be easier. Sizes stated in the item title are internal, and reads WIDTH opening end x LENGTH.
BrandUKPS
Part Number3314154338825