We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Box of 500 white open-side booklet envelopes 8.75 x 11.5 inches vellum finish

WESTERN STATES

WESTERN STATES Open Side Booklet Envelopes 8.75 x 11.5 28# White 500

SKU CH-ASB2-NR3JX

Open-side booklet envelopes measuring 8.75 x 11.5 inches hold flat documents securely with side seams and a remoistening seal

  • Open-side design simplifies loading bulky documents
  • 75 x 11.5 inch size fits standard letter pages
  • 92% brightness white sulphite ensures crisp print contrast
  • SFI certified paper supports responsible forest sourcing
  • Side-seam construction adds strength for heavy contents

Open Side Booklet Envelopes

These envelopes measure 8.75" x 11.5" and are designed for office mailing tasks. The open side format suits booklet-style inserts and documents that do not require a window. A box contains 500 pieces for high-volume use.

28 lb White Sulphite paper with SFI certification

The 28# White Sulphite stock provides a substantial feel and 92% brightness for clear print contrast. SFI certification confirms responsible fibre sourcing. Vellum finish gives a smooth surface for writing or printing.

Side seam construction with remoistening seal

Two side seams under add strength for bulky contents up to the envelope's capacity. The flap-down design uses a traditional remoistening seal for secure closure. At 20.5 lbs per box, the carton is manageable for storage and handling.

Highlights

  • Open-side design simplifies loading bulky documents
  • 75 x 11.5 inch size fits standard letter pages
  • 92% brightness white sulphite ensures crisp print contrast
  • SFI certified paper supports responsible forest sourcing
  • Side-seam construction adds strength for heavy contents

Specifications

BrandThe Envelope Supplies Shop

Questions about this item

What size documents will the 8.75 x 11.5 inch open side format accept without folding?

The open side measures 8.75 by 11.5 inches, so flat sheets up to that width and height slide in directly; the booklet style opens on the long edge for easy insertion.

How does the 28 lb sulphite weight and vellum finish affect printer feeding and ink holdout?

At 28 lb the stock is stiff enough for reliable laser and inkjet feeding, while the vellum finish gives good ink holdout without feathering on either technology.

What sealing method is used and does the side seam construction allow flat stacking after sealing?

A remoistening gum on the flap seals with moisture, and the two side seams underneath keep the envelope lying flat for neat stacking in trays or boxes.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.