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Expansion Kraft Paper Envelopes

When flat isn’t enough, Expansion Kraft Paper Envelopes offer the flexible solution. These envelopes feature a gusset, which allows them to expand to accommodate thicker content without bending or damage. Made of natural kraft paper—strong, recyclable, and eco-friendly—these mailers are ideal for catalogs, apparel, documents, or any contents that need a bit more depth.

The Expansion Kraft Paper Envelopes are sold in cartons of 250 envelopes. Choose from brown or white kraft paper. The Paper Expansion envelopes are available in both open end and open side envelope styles.

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Explore our expansion Kraft paper envelope line—choose your size, gusset depth, or customize. Call 612.867.2121 or email doug@easyenvelopes.com for quotes or samples.

Key Benefits

Gusset expansion for extra capacity without folding or damage
Natural kraft material with durability and traditional appeal
Protect flat content with sufficient depth
Eco-friendly and recyclable material
Custom size, style, and branding options available
Cost savings vs boxes or over-packing flat envelopes

Specifications & Options

Feature	Details
Material	Natural kraft paper of medium to heavy strength
Gusset Depth	½″ to ~2″ depending on size and envelope design
Sizes	Standard sizes with expansion versions; custom sizes available
Closure Options	Peel & seal, self-seal, gummed flap, with strong adhesives
Printing	Logos, return addresses, promotional graphics; some gusset printing possible
Packaging Quantity	Packs and bulk cartons; volume discounts offered

Best Uses & Applications

Catalogs, promo materials with inserts
Apparel, soft goods, accessories
Flat or multi-page documents like proposals, artist prints, student work
Promotional kits with samples or extras
Eco-branded packaging for sustainable businesses

FAQs

What is a gusset?: A side fold that allows the envelope to expand outward—common depths are ½-inch to about 2 inches.
Can expansion kraft envelopes be recycled?: Yes—if made from plain kraft paper without plastic or coating. Check local recycling guidelines.
Is custom printing possible?: Yes, logos and branding are possible; gusset section needs careful design consideration.
Will they safely hold bulky items?: Yes, with sufficient paper weight and proper closure they function safely for many bulky flat items.
Do expansion envelopes cost more than flats?: Slightly higher upfront, but savings arise in packaging waste reduction, damage reduction, and shipping efficiency.

Order & Samples

Call 612.867.2121 or email doug@easyenvelopes.com for help, quotes or samples.