Description
Size Compatibility – A2/C2 Large Mailers
| Paper / Envelope Size | Standard Dimensions (mm) | Flat-Packed Mailer (650 × 500 × 5 mm) | Expanded Mailer (605 × 455 × 50 mm) | Example Use |
|---|---|---|---|---|
| C2 Envelope | 458 × 648 | ✅ Fits | ❌ Does not fit | A3 documents unfolded, certificates, magazines |
| A2 Sheet | 420 × 594 | ✅ Fits | ✅ Fits (may require slight orientation adjustment) | Posters, charts, larger documents |
Key Features & Benefits
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Dual-Size Compatibility – Fits standard A2 sheets and C2 envelopes.
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Expandable Depth up to 50 mm – Ideal for thicker documents or multiple items.
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Durable, Crush-Resistant Cardboard – Protects contents in transit.
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Tamper-Proof Peel & Seal Closure – Easy to seal securely; convenient tear strip for recipients.
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Eco-Friendly & Recyclable – Made from 100% recyclable cardboard.
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Versatile for Large Items – Ideal for posters, certificates, charts, or bundled documents.
Suggested Uses
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Large posters and charts
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Certificates or formal documents
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Multiple A2/A3 documents
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Lightweight merchandise or promotional bundles
- Polypropylene Posters
Technical Specifications
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Flat-packed dimensions: 650 × 500 × 5 mm
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Expanded dimensions: 605 × 455 × 50 mm
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Material: Fully recyclable cardboard
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Closure: Peel & seal with tear strip
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Bulk discounts: Available for large orders
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Dispatch: 2–3 working days from UK stock
Tips for Best Use
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Insert items snugly to prevent movement during transit.
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Use internal supports for fragile or bulky documents.
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Seal peel strip firmly; do not reuse once opened.
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Expanded depth allows for thicker items, but oversized items may require careful orientation.







