Buy Strong A3 C3 Board Backed Envelopes, A4 C4 Board Backed Envelopes, C5 Board Backed Envelopes, C6 Board Backed Envelopes

Board Backed Envelopes / Hard Back Envelopes

Strong Board Backed Envelopes in a Range of Sizes

Choose your preferred size of strong DEFENDA ENVELOPES from our range of C3 / A3 board backed envelopes, C4 / A4 board backed envelopes, C5 / A5 board backed envelopes, C5 / A5 PiP board backed envelopes (Royal Mail Small / Standard Letter qualifying), C6 / A6 Postcard size or C6 / A6 Classic sized board backed envelopes.

If you're looking for the cheapest prices on great quality heavy duty board backed envelopes you can certainly rely on DEFENDA Board Backed Envelopes to protect your items in the postal system at incredibly low prices. A range that allows clients to choose standard letter or large letter qualifying sizes ensures the maximum saving on Royal Mail postage charges.

We have been producing superior quality board backed envelopes for decades & strongly believe that many of the board backed envelopes on the market today simply do not deliver in terms of quality and the protection they provide to their contents. Our premium DEFENDA Envelopes on the other hand are competitively priced without compromising the strength that our clients demand & we have long delivered. When it comes to premium board backed envelopes – our strong card back coupled with quality paper fronts makes Defenda Envelopes the best option for almost any mailings you need to make.

View our full range of board backed envelopes

Sort By:

Show:

C6 / A6 CLASSIC Board Backed Envelopes (162mm x 114mm 6.37" x 4.48" appx)

C6 / A6 PiP Board Backed Envelopes (190mm x 140mm 7.48" x 5.5" appx)

C5 / A5 PiP Board Backed Envelopes (238mm x 163mm 9.37" x 6.42" appx)

C5 / A5 PLUS Board Backed Envelopes (241mm x 178mm 9.5" x 7" appx)

C4 / A4 Board Backed Envelopes (324mm x 229mm 12.75" x 9" appx)

C4 Tariff Beater Board Backed Envelopes (324mm x 229mm 12.75" x 9" appx)

C4 / A4 Board Backed Envelopes with STIFFENERS (324mm x 229mm 12.75" x 9" appx)

C4 / A4 LIGHTWEIGHT Board Backed Envelopes (324mm x 229mm 12.75" x 9" appx)

WHITE C4 / A4 Board Backed Envelopes (324mm x 229mm 12.75" x 9" appx)

WHITE C4 / A4 Board Backed Envelopes WITH WINDOWS (324mm x 229mm 12.75" x 9" appx)

Small Parcel Size Board Backed Envelopes 449mm x 349mm (17.6" x 13.7")

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

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

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

Photograph Size Board Backed Envelopes (267mm x 216mm 10.5" x 8.5" appx)

394mm x 318mm (appx 15.5" x 12.5") Board Backed Envelopes

444mm x 368mm (appx 17.4x 14.4") Board Backed Envelopes

Showing 1 to 17 of 17 (1 Pages)

What are Board Backed Envelopes?

Quite simply they are paper fronted envelopes that have card backs to add rigidity & protect their contents. The card back or grey board back can seriously enhance the strength of the envelopes & also lends itself to another name for them - card backed envelopes.

We produce board backed envelopes in various sizes to suit a range of items that clients post.

Different manufacturers & distributors of board backed envelopes produce them in a range of qualities. Here at Defendapack we produce premium quality envelopes with strong paper fronts and heavy duty board backs. When deciding on which board backed envelopes to purchase pay particular attention to the specification: as poorly specified envelopes will perform poorly & fail to protect their contents sufficiently.

We supply C6 A6 Classic Board backed envelopes, C6 A6 PiP or postcard size board backed envelopes, C5 A5 Classic board backed envelopes, C5 A5 PiP board backed envelopes, C4 A4 board backed envelopes and C3 A3 board backed envelopes.