Cardstock sits in that useful middle ground between regular printer paper and stiff poster board. If you're printing invitations, business cards, postcards or craft projects, you've probably wondered what the weight numbers actually mean and whether you need 65 pound cardstock or something else. This guide explains what those specifications tell you and helps you decide if this thickness is right for what you're making.

What Does 65 Pound Cardstock Actually Mean?

The weight rating on cardstock refers to how heavy a ream of 500 sheets would be at a standard size. So 65 pound cardstock means a ream of 500 sheets at their base size weighs 65 pounds. This doesn't directly tell you the thickness in inches or millimeters, but it gives you a reliable way to compare one cardstock against another. Higher numbers mean thicker, stiffer paper. Lower numbers mean thinner, more flexible cardstock.

Astrobrights/Neenah Bright White Cardstock at 65 lb sits in the medium-weight range. It's noticeably thicker than standard 20 lb printer paper but not as rigid as poster board or 110 lb cardstock. This middle ground makes it versatile for many common projects.

Which Projects Need This Weight?

At 65 pounds, this cardstock works well for business cards, greeting cards, postcards, flyers, bookmarks, scrapbooking elements, and craft projects where you want something sturdy enough to handle but not so thick that it's difficult to fold or cut. If you're making something that needs to survive being mailed, handled multiple times, or stored in a wallet, this weight provides enough substance without becoming unwieldy.

The smooth finish on Astrobrights/Neenah cardstock means text and images print cleanly without texture showing through. This matters if you're running these sheets through an inkjet, laser copier or offset printing process. The smooth surface accepts ink evenly, so you won't see spotty or unclear prints.

Understanding Acid-Free and Lignin-Free Paper

The product description mentions this cardstock is acid and lignin free. These are preservation qualities that matter if your project needs to last years without yellowing or becoming brittle. Paper manufactured with acid or lignin gradually deteriorates over time, which is why old documents turn brown and crumbly. Acid-free, lignin-free paper resists this aging process, so it's the right choice for anything you want to preserve: important documents, scrapbooks, archival records, or items you plan to keep long-term.

Printing Compatibility and Storage

Before buying, confirm your printer can handle 65 lb cardstock. Most inkjet and laser printers have a maximum paper weight they accept, usually listed in your printer manual. Some printers struggle with anything thicker than 90 gsm (roughly equivalent to 65 lb), so check first. The Astrobrights/Neenah product is compatible with inkjet, laser, copier and offset printing, which covers most home and office printing needs.

A pack of 75 sheets gives you enough to try the product for a small project or test batch. Store cardstock in a cool, dry place. Humidity and temperature swings can cause cardstock to warp or curl, so avoid leaving it near heating vents, AC units or damp areas. Keep the package sealed when you're not using sheets to maintain consistent moisture levels.

When you're ready to move beyond standard printer paper but don't need industrial-grade thickness, 65 pound cardstock strikes the right balance for professional results on everyday projects.