Description
Our C5 / A5 PiP Board Backed Envelopes are premium hard backed envelopes designed for secure, flat mailing of medium-sized documents and items. Built with a robust backing board and quality paper shell, these envelopes prevent bending or creasing in transit. This product is offered in bulk quantities, ideal for businesses, print shops, online sellers, and anyone sending lots of mailings with confidence.
Key Features & Specifications
| Feature | Description |
|---|---|
| External Size | 238 × 163 mm (approx 9.37″ × 6.42″) |
| Paper & Board | 120 gsm paper shell / 950 μm board backing |
| Weight / Mailing Class | ~31.6 g per envelope, falls into Royal Mail “Standard / Small Letter” category when within weight limits |
| Closure / Seal | Strong peel & seal design for fast, secure mailing |
| Order Options | Sample units up to large bulk packs (e.g. 125, 500, 1000, 2000, 5000) |
What Fits Inside a C5 PiP Board Backed Envelope?
This size is especially flexible and works well for a variety of commonly mailed items:
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Folded A4 sheets (two-folded to approximately A5 dimensions)
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A5 documents, leaflets, brochures, small booklets
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Photographs, art prints, postcards
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Invitations, greeting cards, announcements
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Vouchers, tickets, promotional material, certificates
Because of the rigid board backing, these hard backed envelopes maintain the shape and integrity of the contents, preventing bending, creasing, or damage in postal handling.
Why Buy in Bulk?
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Lower cost per unit — bulk purchases reduce your per-envelope cost
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Reliable supply — maintain inventory for high volume mailouts
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Quality consistency — each envelope meets the same rigid standards
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Scalable mailing operations — streamline your packing and fulfilment
Key Benefits
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Superior protection — the stiff board core helps your contents remain flat and intact during transit.
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Professional presentation — a sturdy, flat mailer gives recipients a premium impression.
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Postal efficiency — the PiP dimensions are tailored to qualify as a “small/standard letter” under UK Royal Mail rules, reducing postage costs when weight limits are met. Defenda Packaging
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Versatility — suitable for prints, folded documents, cards, art, and promotional media.
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Efficient storage & handling — flat, stackable, and easy to store prior to use.
