C3 Board Backed Envelopes
C3 board backed envelopes are the ideal choice for sending large-format documents, artwork, and plans that must remain completely flat and protected. These hard backed envelopes provide exceptional rigidity, making them perfect for A3 prints, certificates, posters, or photo enlargements.
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Designed to resist bending during transit
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Heavy-duty board backing ensures premium protection
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Available in kraft or white finishes
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Peel-and-seal closure for quick, secure packing
C3 hard backed envelopes are the professional way to send larger sheets safely, ensuring your materials arrive looking pristine. Perfect for design studios, print houses, and offices sending out marketing or presentation materials.
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C3 / A3 Board Backed Envelopes (457 × 324 mm approx) — Bulk Rigid Mailers x 8300
£1,242.00 Inc VAT: £1,490.40 Add to cart -
Small Parcel Size Board Backed Envelopes (449 × 349 mm) — Bulk Rigid Mailers x 7000
£1,284.00 Inc VAT: £1,540.80 Add to cart -
White C3 / A3 Board Backed Envelopes 457mm x 324mm — Bulk Rigid White Mailers x 8300
£1,272.00 Inc VAT: £1,526.40 Add to cart
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