Extra wide, ideal for posting catalogues
Peel and seal gusseted manilla envelopes carry bulky A4 paperwork such as catalogues, manuals and legal documents without folding. The C4 format has an internal size of 229 x 324mm, and V-shaped side gussets with a block bottom expand up to 25mm deep for thicker bundles. The 120 gsm manilla paper resists rips and tears and gives minimal print show-through so contents stay discreet. A peel and seal strip closes gusseted each envelope quickly, with no gummed flap to moisten. Packed within postal limits these C4 manilla envelopes qualify as large letter post, which keeps postage below small-parcel rates. Made from 100% recycled paper with a minimum 90% post-consumer waste.
Sold in packs of 125, priced per pack.
Where do C4 manilla gusset envelopes work best?
C4 manilla gusset envelopes suit post rooms, offices and fulfilment teams sending bulky A4 documents flat rather than folded.
- Posting A4 catalogues and brochures, where the C4 format holds them flat and the 25mm gusset adds room.
- Mailing manuals, reports and legal paperwork, where 120 gsm manilla resists rips and tears in handling.
- Repeat business mailings, where the peel and seal strip closes each envelope with no gummed flap to moisten.
- Thicker document packs as large letter post, where the 25mm depth helps avoid small-parcel postage within postal limits.
Not for
- Single sheets or small flat letters, where a smaller C5 or DL envelope fits better and uses less material.
- Contents over 25mm deep, where a postal box gives the extra capacity and rigid protection needed.
- Flat A4 mail that needs no gusset, where self seal manilla envelopes are a simpler flat option.
Specifications
- Colour: brown
- Material: manilla paper
- Paper thickness: 120 gsm
- Format: C4
- Internal dimensions: 229 x 324mm
- Gusset depth: expands up to 25mm
- Opening: pocket opening on the short edge
- Base: block bottom with V-shaped gussets
- Closure: peel and seal strip
- Recycled content: 100% recycled paper, minimum 90% post-consumer waste
- Postal format: large letter when packed within postal limits
- Pack quantity: 125 envelopes
Choose the right envelope
Peel and seal gusseted manilla envelopes are ideal for when bulkier A4 paperwork needs expandable depth in a manilla finish.
- Choose peel and seal gusseted manilla envelopes for bulky A4 catalogues and document packs up to 25mm deep, with a fast peel and seal strip.
- Choose white self seal envelopes when you want white envelopes for letters rather than bulky A4 paperwork.
- Choose Do Not Bend envelopes when flat documents must stay rigid and uncreased rather than expand.
FAQs
Will these envelopes take unfolded A4 documents?
Yes. The C4 size holds A4 flat, with an internal size of 229 x 324mm.
How deep does the gusset expand?
The sides expand up to 25mm deep, so these C4 manilla gusset envelopes give room for thicker catalogues, manuals and bundles.
Can the contents be seen through the paper?
The manilla paper gives minimal print show-through, keeping business documents discreet in the post.
Do they qualify as large letter post?
Packed within the relevant postal limits, they're classified as large letter, which keeps postage below small-parcel rates.
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