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Box of 500 white No. 9 double-window envelopes

Business Source

Business Source 36680 No. 9 Double Window Envelopes 500/Box 24 lb

SKU CH-QC21-H9JND MPN 36680

White 24 lb envelopes with security tint and double windows, 500 per box

  • TypeBusiness Envelopes
  • ColorWhite
  • Security tint protects confidential documents
  • Double windows show sender and recipient addresses
  • 500 envelopes per box supports high-volume mailing
  • 24 lb stock resists tearing during handling
  • No. 9 size fits standard computer-generated invoices

Envelope specifications

Business Source 36680 No. 9 envelopes are white business envelopes supplied 500 per box. They carry a 24 lb paper weight and include a security tint to protect document contents.

Double-window layout

Two windows replace single-window envelopes when both a recipient address and a sender return address must show through the same envelope. The top window measures 1-3/16" x 3-1/2" and sits 3/8" from the left edge and 2" from the bottom. The bottom window measures 1" x 4" and sits 3/8" from the bottom edge.

Build fit and usage

These envelopes suit standard letter-size, computer-generated invoices and statements. They work with most common printing and folding workflows and require no special sealing equipment. Buyers who need envelopes without windows or with a single-window layout should look elsewhere.

Highlights

  • Security tint protects confidential documents
  • Double windows show sender and recipient addresses
  • 500 envelopes per box supports high-volume mailing
  • 24 lb stock resists tearing during handling
  • No. 9 size fits standard computer-generated invoices

Specifications

TypeBusiness Envelopes
BrandBusiness Source
ColorWhite
Shipping weight2.72 kg
Package size394 × 297 × 239 mm

Questions about this item

What are the exact window dimensions and positions on the No. 9 envelope?

The top window measures 1-3/16" x 3-1/2" and sits 3/8" from the left edge and 2" from the bottom. The bottom window is 1" x 4" and sits 3/8" from the bottom edge.

How should these envelopes be loaded into a printer to align with the double windows?

Load envelopes face up with the flap on the trailing edge. Print a test sheet on plain paper first, hold it behind an envelope to verify alignment through both windows, then print the full batch.

Does the 24 lb paper weight require any special storage to prevent curling before use?

Store the box flat in a climate-controlled area. Remove only the quantity needed for immediate printing and reseal the box to maintain moisture balance and prevent edge curl.

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