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Box of 500 white vellum-finish open-side booklet envelopes 9.5 by 12.625 inches

WESTERN STATES

WESTERN STATES Open Side Booklet Envelopes 9.5 x 12.625 28# White Side Seams Box of 500

SKU CH-QGH9-36ESA

Open side booklet envelopes measuring 9.5 by 12.625 inches, 28 lb white sulphite with vellum finish, SFI certified, side seams, box of 500

  • Open-side design speeds bulk mailing insertion
  • 500-envelope box supports high-volume office workflows
  • SFI-certified sulphite paper meets responsible sourcing standards
  • 92% brightness ensures crisp, professional document appearance
  • Vellum finish resists smudges during handling

Open Side Booklet Envelopes 500 Count

These open side booklet envelopes measure 9.5 x 12.625 inches and come in a box of 500. They are made from white sulphite paper with a vellum finish and 92% brightness. The paper stock is 28# weight and carries SFI certification. Two side seams under construction provide a clean profile for mailing or filing.

Consistent Handling Across Large Mailings

The 28# sulphite stock feeds reliably through office printers and inserting equipment during extended runs. Vellum finish reduces static and misfeeds when processing the full 500 count box. Side seam construction keeps edges flat so envelopes stack neatly in output trays. Remoistening seals activate uniformly without curling after repeated passes.

SFI Certified White Sulphite With Side Seams

White sulphite paper is SFI certified and delivers 92% brightness for professional presentation. Side seams create a smooth front panel suitable for labels or printed addresses. Flap down design with remoistening seal closes securely for transit. Box weight is 25 lbs and contains 500 envelopes ready for daily office use.

Highlights

  • Open-side design speeds bulk mailing insertion
  • 500-envelope box supports high-volume office workflows
  • SFI-certified sulphite paper meets responsible sourcing standards
  • 92% brightness ensures crisp, professional document appearance
  • Vellum finish resists smudges during handling

Specifications

BrandThe Envelope Supplies Shop

Questions about this item

How much does a full box of these 28# envelopes weigh when stored on a shelf all day?

A full box of 500 envelopes weighs 25 lbs, so the shelf must support that static load continuously.

What sealing method do these envelopes use so I know whether to keep moistener or tape on hand?

They have a remoistening seal on the flap; you only need water or a damp sponge to activate the adhesive.

Will the 9.5 x 12.625 inch size fit the catalogues I already mail in standard 9 x 12 booklet envelopes?

These are slightly larger at 9.5 by 12.625 inches, so existing 9 x 12 catalogues will fit with a small margin around the edges.

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