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Envelopes

Envelopes for Filing and Mailing – Shop Remittance, Catalog, Window and Custom Envelopes

Advanced Filing Concepts offers a complete selection of envelopes for business, office, and personal use. Whether you need standard mailing envelopes for invoices, security envelopes for confidential documents, or laser-compatible window envelopes for professional correspondence, you’ll find reliable, high-quality options right here. Popular envelope styles include #10 and #9 business envelopes, window envelopes for quick address visibility, security envelopes to protect sensitive contents, large mailing envelopes for catalogs or legal documents, and colored envelopes that make your mail stand out. With multiple sizes, finishes, colors, and sealing styles available, Filing.com makes it easy to choose the best envelopes for your specific application. Need guidance? Contact us for personalized recommendations from our experts.

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Envelopes for Business Mail — #10, #9, Window & Security

Choose from standard #10 and #9 business envelopes, security envelopes for privacy, window envelopes for quick addressing, and larger catalog/booklet formats for thicker contents. Many options are Made in the USA.

Best Sellers & Use Cases

  • #10 Business (4-1/8" × 9-1/2"): Invoices, statements, general mail.
  • #9 Reply (3-7/8" × 8-7/8"): Remittance/return inside #10 mailings.
  • Catalog (Open End): Top-opening for thicker stacks, manuals, kits.
  • Booklet (Open Side): Side-opening for brochures that shouldn’t be folded.
  • Colored: Promotions, kits, and branded mail that needs attention.

Window Options (Incl. Laser-Compatible)

Pick single or double windows for addressing and remit slips. Our laser-compatible window options resist heat curling/clouding—ideal for high-speed laser printers and inserters.

Tip: Align your document’s address block to the window size to prevent show-through issues.

Security & Privacy

  • Security tints: Printed interiors block reading contents through paper.
  • Heavier stocks: Improve opacity to protect sensitive mail.
  • Remittance styles: For payments/donations—with inside printing options.

Sizes & Flaps

  • Commercial: #6-3/4, #9, #10—daily business correspondence.
  • Catalog (Open End): Center seam with policy/straight or wallet flaps.
  • Booklet (Open Side): Side seam with square or wallet flaps.

Sealing Styles

  • Gummed: Moisten to seal—economical for bulk runs.
  • Peel & Seal: Fast, clean, secure—no moisture needed.
  • Self-Seal: Two latex strips bond under pressure.

Helpful Tips

  • Match contents: Pick size/orientation (open end/side) to minimize folds.
  • Printer use: For window envelopes, choose laser-compatible windows to avoid warping.
  • Branding: Colored or custom-printed envelopes increase open rates.

Popular Envelope Categories

Business Envelopes · Window Envelopes · Security Envelopes · Catalog · Booklet · Colored

Availability varies by size, window, color, and seal style; many items are Made in the USA.

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