We use cookies to improve your browsing experience.Read our Cookie Policy here. Continue
Subscribe to our newsletter for 10% off your first order, loyalty rewards and expert ecommerce advice. With over 2100 products in stock we are sure to have the right product for you.
Call us on 01622 580 100
Email us at [email protected]
My dimensions are:
I'm looking for:
My sizes are:
My dimensions are in:
mmcminchesmetres
BoxesBagsPostal
Minimum Size (My product is this big)Approx Size (Slightly smaller is ok)
Find Products
Or search by Royal Mail postal size:
You are at the 5+ Rate. Add 4 items to boost your savings.
Board Backed Envelopes are perfect for those sending important documents in the post which need to be kept flat. Designed to keep your items safe and well protected during transit, these board envelopes are manufactured with a rigid 1000 micron backing board and a 120gsm paper front. For extra peace of mind, our range includes Do Not Bend envelopes with their printed message which gives in-transit instructions to ensure your items arrive in the best condition. Available in a range of popular sizes in classic white and manilla, as well as a smart and sleek black for those who want to give their mail a stand-out professional edge - all of our hardback envelopes are supplied in boxes for neat and convenient storage.
Thank you for your interest, this feature is coming soon.