18.5x12.5" White Jumbo Envelopes 28lb Paper - Case of 250
$121.90
/ case of 250$0.49 per mailer
Request bulk pricing
Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
18 1/2" × 12.5"
Board / material
28 lb. Paper Stock
Color
White
Freight class
Class 78
Specifications
| Inside dimensions | 18 1/2" × 12.5" (L × W) |
|---|---|
| Board / material | 28 lb. Paper Stock |
| Color | White |
| Sold as | Case of 250 |
| Order in multiples of | 1 |
| Case weight | 21.34 lb |
| Outer carton (shipping) | 21.5 × 13.5 × 6.0 in |
| LTL freight class | Class 78 |
| GTIN | 841436091596 |
| SKU | EN1080W |
About this item
SKU EN1080W — 18 1/2" × 12.5", 28 lb. Paper Stock, White. Sold as a case of 250, shipped from US warehouses.
Common questions
Can these ungummed envelopes be reused multiple times?
Yes. The ungummed flap design allows you to seal with tape, stickers, or adhesive strips repeatedly. This reduces per-mailing costs and supports sustainable business practices for recurring shipments.
What items fit in 12 1/2" x 18 1/2" jumbo envelopes?
These oversized envelopes accommodate catalogs, 11" x 17" documents without folding, photo portfolios, print samples, marketing collateral, and unfolded 8.5" x 11" materials. Flat storage prevents creasing and maintains document quality.
How many envelopes are in each case, and what's the shelf life?
Each case contains 250 envelopes. With proper storage in dry conditions, paper envelopes have indefinite shelf life, making this bulk purchase ideal for long-term mailroom inventory.
Are these envelopes USPS, UPS, and FedEx compliant?
Yes. The 28 lb. paper stock and standard jumbo dimensions meet major carrier specifications for oversized flat mail and parcel services. Always confirm current size/weight requirements with your carrier.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.