CAA Québec

Supremex - Window Envelope #10 (500)

  • Supremex - Window Envelope #10 (500)

Envelope #10 with cross-seam window – Secure closure and neat presentation

The cross-seal envelope is designed to provide a strong and secure closure while protecting documents during transit. Its cross-style flap ensures reliable sealing and helps keep contents in place, making it ideal for professional mailings that require added security and a polished appearance.

Product Information

  • Envelope classification: #10
  • Features: Window
  • Bonding: Eraser
  • Protection type: Regular white
  • Quantities:
  • Envelope width: 9 1/2 in (241.30 mm)
  • Envelope length: 4 1/8 in (104.78 mm)
  • Paper weight: 24 lb (10,886.22 g)
  • Closure type: V-shaped flap

Versatile Office Use

This envelope is well suited for sending business correspondence, administrative documents, and important paperwork. Its classic and functional design makes it a dependable choice for everyday office use.

Key Features

  • Cross-seal flap for reinforced closure

  • Helps protect documents during mailing

  • Suitable for professional and administrative use

  • Clean, professional appearance

Product Details

  • Type: Cross-seal envelope

  • Use: Documents, correspondence, files

  • Format: Standard office size

  • Color: White

  • Product Code: 357111

This cross-seal envelope offers a reliable solution for mailing documents securely while maintaining a professional look.

 

#10 Envelope – 10.48 cm x 24.13 cm

The #10 envelope is the standard choice for business correspondence. Its elongated format easily accommodates a 21.59 cm x 27.94 cm (8.5" x 11") sheet folded into thirds. It is widely used for everyday commercial and administrative mailings.

Ideal for:

  • Business letters

  • Invoices

  • Statements and notices

  • Direct mail campaigns

Key features:

  • Traditional flap for secure sealing

  • Window options available to display the recipient’s address directly from the enclosed document


#9 Envelope – 9.84 cm x 22.54 cm

Slightly smaller than the #10, the #9 envelope is most commonly used as a return envelope included within a larger mailing. It is also suitable for sending smaller documents or forms.

Recommended uses:

  • Return mail

  • Reply envelopes

  • Small documents and forms

Main characteristics:

  • Designed to fit inside a #10 envelope

  • Often pre-addressed for convenient responses


#6 3/4 Envelope – 9.21 cm x 16.51 cm

The #6 3/4 envelope is ideal for compact mailings. It is frequently used for checks, receipts, or short messages in both professional and personal settings.

Suitable for:

  • Checks

  • Receipts

  • Short notes

  • Small forms

Advantages:

  • Compact and practical format

  • Can be inserted into #9 or #10 envelopes for combined mailings



  • Brand: Offix
  • Product Code: 357111
  • MPN: 3724440FSCNL
  • Availability: In-store purchase only
  • 47.99$
Last update on 21.01.2026

Tags: Supremex - Window Envelope #10