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C3 / A3 Board Backed Envelopes (457mm x 324mm 18" x 12.75" appx)

  • Product Code: C3BBENV#
  • £0.00

  • Ex VAT: £0.00
Includes FREE SHIPPING To Most UK Mainland Addresses
Orders placed after 3.00 pm may not be shipped on the same day

Available Options


Heavy Duty C3 / A3 Board Backed Envelopes

Protect those important oversized items with this quality strong C3 / A3 sized Board Backed Envelope.
Our DEFENDA C3 / A3 Hard Backed Envelopes have been designed to give added protection to those slightly larger items without folding them to fit into a C4 size hard backed envelope.
All of our envelopes are printed with Please Do Not Bend in Red.
In addition to our extensive range of board backed envelopes, we can manufacture custom made sizes and designs. There will of course be minimum order quantities but you may be surprised at how relatively few that may prove to be.
UK Manufactured Hard Backed Envelopes - For Reduced Import Miles. Recycled and 100% Recyclable.

Shipping Rates & Upgrades


FREE SHIPPING...
so no nasty surprises at checkout.

With the vast majority of items listed on this site being supplied without an additional charge for postage — you can shop with confidence that the price you see will be the price you pay at checkout.

The only time you may have additional charges is when you’re buying bulk quantities, very large items or you’re located offshore or in certain parts of the Scottish Highlands.

All of our prices are shown Inclusive of VAT and Free Shipping to MOST UK Mainland addresses. 

Please note that we cannot deliver to PO boxes.

Please check here for Offshore and Scottish Highlands shipping upgrades

If you require a faster delivery, click here for timed shipping upgrades

If you are ordering outside of the UK, please click here to see our international rates