Greeting Card Paper Weights Explained for Card Buyers

Quick Answer

For everyday greeting cards, a 100 lb cover stock is a solid benchmark: it feels substantial in hand, stands up in the mail, and handles most pens without bleed-through. If you want a card that feels noticeably sturdier than a standard drugstore card, look for 100 lb or heavier cover stock and a matching envelope included.

What Cardstock Weight Actually Measures

Cardstock weight is not the same as thickness, though the two often rise together. In the US, paper is commonly sold by basis weight, which is the weight of 500 sheets at a standard size. Cover stock, the category most greeting cards fall into, is measured at a 20 x 26 inch base size. That is why a 100 lb cover card feels much heavier than a 100 lb text sheet. When a listing says 100 lb recycled cover, it means 500 sheets at that base size weigh 100 pounds. GSM, or grams per square meter, is the metric equivalent and is more consistent across paper types. A 100 lb cover stock usually lands around 270 GSM, but the exact conversion depends on the mill and finish.

How Thickness Changes the Writing and Mailing Experience

Thicker cardstock resists show-through from gel pens and markers, which matters if you write long messages or use bold ink. It also holds a crease better, so a folded card stays flat instead of bowing at the spine. For mailing, a card that is too thin can bend in sorting machines, while an overly rigid card may need extra postage if it exceeds the USPS first-class letter flexibility rules. A 100 lb cover card sits in a practical middle ground: sturdy enough to arrive looking clean, flexible enough for a standard forever stamp in most cases. If you plan to mail internationally or add enclosures, check the total weight at the post office before committing to a heavy stock.

Recycled and Specialty Stocks: What Changes

Recycled cover stock can feel slightly different from virgin fiber stock at the same weight. The fibers are often shorter, so the sheet may have a softer, more matte surface and a touch less stiffness. That is not a defect; it changes how the card takes ink and how it feels in hand. Letterpress printing, for example, works well on recycled cover because the impression presses into the fiber and creates a tactile debossed look. Screen printing, used for some card sets, lays down a thicker layer of ink and tends to look more vibrant on a smoother sheet. Neither method is inherently better; the right choice depends on whether you want a deep pressed impression or a bright, flat graphic.

Reading a Card Listing Without Getting Fooled

Most card listings do not state GSM, and some do not state basis weight either. When a weight is missing, treat it as an unknown rather than assuming a number. Look instead for concrete clues: the paper category, the printing method, the folded size, and whether an envelope is included. A listing that names 100 lb recycled cover and a specific folded size of 4.25 x 5.5 inches gives you enough to compare against other cards. A listing that says only premium paper tells you almost nothing. If the weight matters to you, ask the seller before ordering a large set.

Decision Rules for Choosing Card Weight

• If you mail cards regularly: Choose 100 lb cover stock or similar. It resists bending in sorting machines and usually stays within standard first-class letter rules. Check total weight if you add enclosures.
• If you write with gel pens or markers: Heavier cover stock reduces show-through. A 100 lb recycled cover handles most everyday pens without ghosting on the front. Test one card before writing a full set.
• If you want a tactile, pressed look: Letterpress printing on recycled cover stock creates a visible, touchable impression. Screen printing gives flatter, brighter color instead. Match the printing method to the feel you want, not just the weight.
• If the listing does not state a weight: Treat the thickness as unknown. Look for the paper category, folded size, and envelope inclusion instead, or ask the seller directly. Do not assume heavy stock from words like premium.

Card Paper Examples From the Catalog

• Season's Greetings Arctic Animals: Season's Greetings Arctic Animals is letterpress printed on 100 lb recycled cover stock, folded to 4.25 x 5.5 inches, blank inside, and comes with a matching envelope. This is a concrete reference point for the 100 lb cover benchmark: sturdy enough for mailing, with a tactile letterpress impression and room to write your own message.
• Greetings From New Jersey: Greetings From New Jersey is a letterpress-printed folded card on 100 lb recycled paper cover, measuring 4.25 x 5.5 inches when folded, blank inside, with a matching envelope. Shows the same 100 lb recycled cover weight applied to a non-holiday design, so you can compare feel and print style across occasions.
• Brunch Buddies: Brunch Buddies is a screen-printed card set on 100 lb recycled paper cover, folded to 4.25 x 5.5 inches, blank inside, with matching envelopes. Screen printing on the same 100 lb recycled stock produces crisper, more vibrant artwork than letterpress, which helps if you prioritize bold color over a pressed texture.

Who Should Choose 100 lb Cover Cards

Best for

• People who mail greeting cards and want them to arrive unbent
• Writers who use gel pens or markers and want less show-through
• Buyers who prefer a tactile, letterpress-printed card over a flat commercial card

Not for

• Senders who need the absolute lightest card to minimize postage
• Buyers who prefer a glossy, mass-market card feel
• Anyone mailing internationally without checking weight limits first