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White #10 business envelopes, 24 lb vellum finish, side seams, square flap, box of 500

WESTERN STATES

WESTERN STATES #10 Regular Business Envelope 24# White Side Seam 2" Square Flap No Window 500 Box

SKU CH-GDF7-CDFY8

Holds standard letter-size documents in a 500-count box of 24# white vellum envelopes with side seams and square flaps

  • #10 size fits standard business correspondence
  • 24 lb sulphite stock gives a professional feel
  • 92 % brightness ensures crisp print contrast
  • Side-seam construction adds strength for mailing
  • 500 envelopes per box supports high-volume needs

Standard #10 Business Envelopes

These #10 regular business envelopes measure 4.125 by 9.5 inches and come in a box of 500. They are suited for everyday mailing, invoices and correspondence in offices, schools or home workspaces. The white sulphite stock provides a clean, professional appearance for routine communications.

24 lb Vellum Sulphite Stock

The envelopes use 24 lb Western Sulphite paper with a 92% brightness rating and a vellum finish. This weight and finish combination determines whether the sheet feeds reliably through laser and inkjet printers while resisting show-through. SFI certification confirms the fibre sourcing meets sustainable forestry standards.

Side Seam Construction Under Load

Two side seams placed underneath the envelope body distribute stress evenly when the envelope is filled with multi-page documents. The construction resists splitting during automated inserting equipment runs and high-volume mailing campaigns. A 2 inch square flap with remoistening seal closes securely without adhesive strips.

Highlights

  • #10 size fits standard business correspondence
  • 24 lb sulphite stock gives a professional feel
  • 92 % brightness ensures crisp print contrast
  • Side-seam construction adds strength for mailing
  • 500 envelopes per box supports high-volume needs

Specifications

BrandThe Envelope Supplies Shops

Questions about this item

What paper weight does the 24# rating give me in daily mailing?

The 24# white sulphite stock provides a crisp, professional feel that handles folding and machine inserting without tearing.

How does the side-seam construction affect compatibility with my folder-inserter?

Two side seams under create a flat profile that feeds reliably through most folder-inserters and laser printers.

Will the 4.125 x 9.5 inch dimensions fit standard #10 windowless trays?

Yes, the envelope matches the standard #10 size exactly, so it sits properly in any #10 tray or hopper.

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