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Custom 9" x 12" Envelopes

The Custom 9" x 12" Envelope is the industry standard for mailing 8.5" x 11" documents, large reports, presentations, and catalogs without folding. We provide the durability and customization necessary to ensure your critical, full-size materials are delivered flat, pristine, and professionally branded.

Personalized 9 x 12 envelopes showcasing a business logo and printed return address

Personalized 9x12 Envelopes

Custom 9" x 12" business mailing envelopes printing

Create My Own 9x12 Envelopes

13 Product(s) Found
Custom made booklet envelope, 9" x12" size, side opening
  • Sku: P793
From: $90.24
912EW - White Mailing Business Envelopes - Open End
  • Sku: 912EW-1
From: $128.00
795 - Kraft Mailing Envelopes - Open End
  • Sku: 795-1
From: $128.00
TF0912 - Tyvek® First Class Mailing Envelopes
  • Sku: TF0912-1
From: $175.50
TP0912 - Tyvek® Mailing Envelopes - Self-Seal
  • Sku: TP0912-1
From: $175.50
Custom printed mailing envelopes, 9x12 size, 2 ink color design
  • Sku: P7931C
From: $130.80
747 - Custom Printed Booklet Envelopes
  • Sku: 747-1
From: $128.00
778 - First-Class Mailing Envelopes
  • Sku: 778-1
From: $128.00
793 - Custom Printed White Mailing Envelopes
  • Sku: 793-1
From: $133.00
912SW - 9" x 12" White Mailing Envelopes - Open Top
  • Sku: 912SW-1
From: $128.00
912SK - Kraft Mailing Envelopes - Open Top
  • Sku: 912SK-1
From: $128.00
Custom made booklet envelope, 9" x12" size, side opening
  • Sku: P79311
From: $112.62
Custom made catalog envelope, 9" x12" size, top opening
  • Sku: P793L
From: $96.50

Our robust selection of 9x12 envelopes ensures you have the perfect stock and features for everything from lightweight marketing catalogs to heavy-duty document shipments.

Choosing the right envelope and customizing it with your assets is an essential element of professional communication. This large format commands attention in the mail pile, and when paired with high-quality printing, it reinforces a perception of reliability and premium service. Start customizing today to protect your documents and promote your business simultaneously.