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Extra Heavy Duty 140lb Cover Cardstock - 4' x 6' Bright White - 379gsm 18pt Thick Paper - Index, Flash & Post Card Stock - 100 Sheets Pack

4.8 (1) Write Review
Free shipping on orders over $29.99

$15.95

$ 7 .99 $7.99

In Stock

1.Size:100 Sheets Pack


About this item

  • Very Thick Cardstock perfect for invitations, post cards, covers, index cards, and flash cards OR as a sturdy protective backing for your project or photos
  • Made from 140lb Cover (378 gsm) Stock with a Smooth Matte finish - 18pt - 0.45mm Thick
  • Measures 4" x 6" - Made in the USA
  • Compatible with Inkjet & Laser Printers (Copiers too) - You MUST consult your printer manual if you plan on printing on this stock due to its heavy thickness
  • NOTE: This stock is VERY thick. Please consult your printer manual before ordering to make sure it can handle 140lb Cover (378 gsm) cardstock


Desktop Publishing Supplies, Inc. brand 140lb Cover White Cardstock works great for those looking for an extremely thick stock for their invitations, greeting cards, business cards, etc. This 140lb Cover White Cardstock is our thickest cardstock at 18 Mil thickness (0.45mm). This stock measures 4" x 6" and is inkjet and laser printer compatible. PLEASE NOTE: Due to the thickness, we recommend checking your printer specifications to make sure it can feed at least 140lb Cover (379 gsm) stock.


Stephanie B.
Reviewed in the United States on April 15, 2025
Thickest card stock we could find. Beautiful smooth surface, bright white and easy to write on. We hand-make our own thank you notes for customers and decorate them with a hot wax seal that we hand stamp with a metal seal stamp. This card stock holds up beautifully with the thick wax seal. It’s also nice as a plain notecard, not flimsy like most note cards. Highly recommend for invites, notecards, etc