C4 Board Backed Envelopes
The most popular size in our range, C4 board backed envelopes fit A4 documents perfectly without folding. These hard backed envelopes are made from premium kraft board to prevent creases, dents, or tears during postage.
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Ideal for A4 documents, photos, and certificates
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Rigid backing board maintains document integrity
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Professional appearance for business correspondence
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Peel & seal for fast, tamper-evident closure
Our C4 board backed envelopes offer unbeatable protection and presentation — the gold standard for document mailing.
Showing all 6 results
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C4 “Tariff Beater” Board Backed Envelopes (324 × 229 mm) x 19000
£1,233.00 Inc VAT: £1,479.60 Add to cart -
C4 / A4 Board Backed Envelopes — Heavy-Duty Rigid Mailers (324mm x 229mm) x 17000
£1,187.00 Inc VAT: £1,424.40 Add to cart -
C4 / A4 Lightweight Board Backed Envelopes (324 × 229 mm) x 20000
£1,538.00 Inc VAT: £1,845.60 Add to cart -
C4 / A4 Board Backed Envelopes with Stiffeners (324 × 229 mm) — Bulk Rigid Mailers x 1000
£179.50 Inc VAT: £215.40 Add to cart -
White Windowed C4 / A4 Board Backed Envelopes — Bulk Rigid Mailers with Window x 17000
£1,522.00 Inc VAT: £1,826.40 Add to cart -
White C4 / A4 Board Backed Envelopes — Bulk Rigid White Mailers x 17000
£1,384.00 Inc VAT: £1,660.80 Add to cart
Showing all 6 results