WESTERN STATES #10 Poly Window Envelope 24# White Side Seam Black Wesco Tint Box 500

Professional Mailing Solution

These #10 business envelopes measure 4-1/8 by 9-1/2 inches and are built from 24-pound white sulphite paper with a vellum finish. The poly window sits 7/8 inch from the left edge and 1/2 inch from the bottom, sized at 1-1/8 by 4-1/2 inches for standard address placement. A black Wesco tint on the interior blocks visibility of enclosed documents. Side-seam construction and a remoistening seal complete the design.

Capacity and Everyday Use

A single box contains 500 envelopes, while a full carton holds 2,500 units for high-volume mailing operations. The 92% brightness gives printed addresses strong contrast against the white stock. This quantity comfortably supports daily invoicing, statements and direct-mail campaigns without frequent reordering. Very large bulk mailers will exhaust a box quickly and should plan for carton-level replenishment.

Upgrade Path and Fit

The black Wesco tint replaces standard untinted envelopes when confidentiality is required for cheques, personal data or financial statements. The poly window and side seams upgrade from open-window or centre-seam styles that can jam in high-speed inserters. SFI certification meets procurement policies that mandate responsible fibre sourcing. Buyers needing larger formats, heavier paper weights or peel-and-seal closures will need a different specification.