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Box of 500 white #10 double-window envelopes with vellum finish

WESTERN STATES

WESTERN STATES #10 DG-1NT Double Poly Window Envelopes 4.125 x 9.5 24# White 500 Box

SKU CH-6YN6-SK5ZH

White sulphite #10 envelopes with double poly windows, 24 lb stock, 92 % brightness, 500 per box

  • SFI certified paper supports responsible forestry
  • 92 % brightness gives crisp printed contrast
  • Double poly windows show two address blocks
  • Diagonal seam construction adds edge strength
  • Box of 500 envelopes keeps mailing ready

#10 Double Poly Window Envelopes

These #10 envelopes measure 4.125 by 9.5 inches and come in a box of 500. They are built for high-volume mailing operations that require two separate window views on a single envelope. The white sulphite stock carries SFI certification and a 92 brightness rating. A vellum finish gives the surface a professional feel.

Sustained mailing performance

The 24 pound paper weight resists tearing during automatic insertion and long transport runs. Diagonal seam construction adds strength at the edges where stress concentrates. Remoistening seals activate reliably after storage. Double poly windows stay clear through humidity changes and machine handling. The flap-down design feeds cleanly through folder inserters.

Upgrade from single-window stock

This double-window format replaces separate mailings when both a return address and a recipient address must show through the envelope. It eliminates the need to print addressing information on the letter itself. The jump is worth it when statement runs, invoices or cheques require two distinct window positions. Standard single-window envelopes cannot accommodate this layout.

Highlights

  • SFI certified paper supports responsible forestry
  • 92 % brightness gives crisp printed contrast
  • Double poly windows show two address blocks
  • Diagonal seam construction adds edge strength
  • Box of 500 envelopes keeps mailing ready

Specifications

BrandThe Envelope Supplies Shop

Questions about this item

How much does a full box of 500 envelopes weigh when stored on a shelf all day?

Each box of 500 envelopes weighs 7 lbs, so a full box adds that much static load to your shelf.

What size printer tray or feeder is needed to run these 4.125 x 9.5 inch envelopes?

These #10 envelopes measure 4.125 by 9.5 inches, so your printer must accept that exact envelope size in its tray or manual feed slot.

Will the double poly windows on these 24# envelopes jam in an older laser printer?

The 24# white sulphite stock with vellum finish and diagonal seam feeds reliably in most legacy laser printers that support #10 envelopes.

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