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Box of 500 white 28# vellum envelopes 6 by 9.5 inches open side side seams

WESTERN STATES

WESTERN STATES Open Side Booklet Envelopes 6 x 9.5 28# White Side Seams Box of 500

SKU CH-6QT6-V5ERR

White SFI-certified sulphite envelopes with vellum finish, side seams and remoistening seal, supplied in a 500-count box weighing 15 lbs

  • SFI certified paper supports responsible forestry
  • 92% brightness gives crisp, readable prints
  • Vellum finish provides smooth writing surface
  • Open side design allows easy document insertion
  • Side seam construction adds strength for mailing

Open Side Booklet Envelopes 6 x 9.5

These open side booklet envelopes measure 6 inches by 9.5 inches and are made from 28# white sulphite paper with a vellum finish. They feature two side seams under construction and a remoistening seal for secure closure. The box contains 500 envelopes suitable for office mailing and filing tasks.

SFI Certified White Sulphite Paper

The envelopes use SFI certified white sulphite stock rated at 92% brightness for a clean, professional appearance. Vellum finish provides a smooth surface that works well with both inkjet and laser printers. Side seam construction adds strength for handling multi-page documents without splitting.

500 Count Box Weighing 15 lbs

A single carton holds 500 envelopes with a total shipping weight of 15 lbs, giving ample supply for regular bulk mailing. The 28# paper weight handles standard letter inserts and lightweight brochures comfortably. Heavier catalogues or thick booklets may exceed the practical capacity of this envelope weight.

Highlights

  • SFI certified paper supports responsible forestry
  • 92% brightness gives crisp, readable prints
  • Vellum finish provides smooth writing surface
  • Open side design allows easy document insertion
  • Side seam construction adds strength for mailing

Specifications

BrandThe Envelope Supplies Shop

Questions about this item

Does the 28# white sulphite paper hold up to repeated printer passes without curling?

The 28# sulphite stock with vellum finish is rated for standard office printing; its 92% brightness and side-seam construction resist curl through multiple passes.

At what fill level do the side seams start to strain during daily mailing?

Each envelope measures 6" x 9.5" with two side seams under; they are designed for typical booklet contents up to the full 9.5" depth without seam stress.

How much heat does a full 500-count box add to a small mailroom running all day?

The box weighs 15 lbs and contains 500 envelopes; it adds no active heat, only the minimal thermal mass of paper stored at room temperature.

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