Protect oversized documents, prints, and catalogs with these 12.5 x 18.5" kraft jumbo envelopes made from durable 28 lb. paper stock. Ungummed flaps enable cost-effective reuse, reducing packaging waste and expenses. Sold in cases of 100 for bulk mailroom and shipping needs.
In Stock SKU: EN1080

12.5 x 18.5" Kraft Jumbo Envelopes 28lb - Reusable Ungummed, Case of 100

Protect oversized documents, prints, and catalogs with these 12.5 x 18.5" kraft jumbo envelopes made from durable 28 lb. paper stock. Ungummed flaps enable cost-effective reuse, reducing packaging waste and expenses. Sold in cases of 100 for bulk mailroom and shipping needs.

$44.93 / CASE (100 PER CASE)
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Confirm this specSKU EN1080
Size
12 1/2 x 18 1/2 in
Material
28 lb. Paper Stock
Color
Kraft
Sold as
CASE (100 PER CASE)
Freight class
78
Material
28 lb. Kraft Paper Stock
Dimensions
18 1/2" x 12 1/2"
Flap Type
Ungummed (Reusable)
Good fit for

Use for mailrooms, print shops, and businesses shipping oversized documents, catalogs, and flat materials up to 18.5" x 12.5". These kraft jumbo envelopes offer durable 28 lb. paper stock protection while their ungummed design enables cost-effective reuse across multiple shipments, reducing per-unit packaging expenses.

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Best For

Use for mailrooms, print shops, and businesses shipping oversized documents, catalogs, and flat materials up to 18.5" x 12.5". These kraft jumbo envelopes offer durable 28 lb. paper stock protection while their ungummed design enables cost-effective reuse across multiple shipments, reducing per-unit packaging expenses.

How to Choose the Right Packaging

The 28 lb. kraft paper stock provides puncture and tear resistance compared to standard office envelopes, ensuring contents survive rough handling in transit. Ungummed flaps allow unlimited sealing and resealing, eliminating glue waste and enabling sustainable multi-use applications, ideal for businesses seeking OPEX reduction without sacrificing protection.

Specs at a Glance

Material28 lb. Kraft Paper Stock
Dimensions18 1/2" x 12 1/2"
Flap TypeUngummed (Reusable)
Quantity per Case100 Envelopes
RecyclableYes
Common Use Cases
  • Shipping oversized printed materials and catalogs Flat storage for blueprints, technical drawings, and documents Mailroom bulk distribution of brochures and marketing collateral Reusable interoffice and interdepartmental document transfers Cost-effective packaging for e-commerce retailers shipping flat goods
What You'll Receive
  • 100 kraft jumbo envelopes (18 1/2" x 12 1/2") Ungummed flaps for custom sealing options
Shipping & Packaging

Ships via standard freight in a single compact case. Flat-pack design minimizes dimensional weight charges and storage footprint, making bulk ordering economical for high-volume users.

Frequently Bought Together

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Frequently Asked Questions

Yes. The ungummed flaps allow you to seal with tape, glue, or string repeatedly without adhesive residue buildup. Many businesses use these across 5-10 shipment cycles, significantly reducing per-use costs.

Yes. The 18 1/2" x 12 1/2" dimensions comply with major carrier oversized envelope standards. Verify exact rate requirements with your carrier before high-volume shipping.

28 lb. kraft stock is approximately 50% thicker than standard 20 lb. office paper, offering puncture resistance and tear durability, essential for protecting valuable documents and fragile printed items during handling and transit.

Ideal for flat items: catalogs, brochures, technical drawings, blueprints, large format photos, certificates, and oversized documents. Not recommended for items requiring 3D protection, use boxes for fragile goods.

Technical Specifications

Flap TypeUngummed (Reusable)
Quantity per Case100 Envelopes
RecyclableYes
Color Kraft
Strength / Material 28 lb. Paper Stock
Dimensions (Internal) 12 1/2"" × 18 1/2"" (L × W × H)

Product Downloads

Shipping Information

Outer Carton Dimensions

21.75" × 14.25" × 2.5" (L × W × D)

Unit of Measure

CASE

Qty Per Shipping Unit

100 PER CASE

LTL Freight Class

Class 78

Delivery Method

Shown at checkout

ORDER SUPPORT

Product Support

We aim to show product specs, case quantities, and availability clearly. Contact support if an item does not match the listed product details.

Secure checkout LTL freight available on case/skid orders

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