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Cardstock labels speak in three languages at once. A package might say 110 lb, another shows 300 gsm, and a third lists 14 pt, yet the sheets inside can feel nearly identical. The confusion is not your fault. Those numbers measure different things, and the pound rating in particular shifts meaning depending on the grade of paper being weighed. Buy the wrong sheet for a die cutter or a printer, and you find out the hard way.
This guide translates the numbers into plain terms, then matches specific weight ranges to the crafts that need them. You will learn which paper folds crisply into a card base, which stays flat under a stack of photos, which feeds through a home printer without jamming, and which holds up as a box or album cover. A few minutes with a conversion chart now saves a lot of ruined paper later.
What the Numbers on the Package Mean
Gsm stands for grams per square meter. It is a true density measurement: one square meter of the paper weighs that many grams, no matter who manufactured it or what the paper will be used for. When you can only check one number before buying online, make it this one.
Pounds work differently. A paper’s pound rating describes the weight of 500 sheets cut to that paper’s basis size, and the basis size changes by grade. Bond paper is weighed at 17 x 22 inches, text at 25 x 38, cover at 20 x 26, and index at 25.5 x 30.5. Because a text-size ream covers far more area, 80 lb text is dramatically thinner than 80 lb cover. The rating only lets you compare sheets within the same grade. Cardstock sold for crafting is almost always cover weight, so that is the conversion that matters:
- 65 lb cover is roughly 176 gsm
- 80 lb cover is roughly 216 gsm
- 100 lb cover is roughly 270 gsm
- 110 lb cover is roughly 300 gsm
- 120 lb cover is roughly 325 gsm
Points, sometimes written as pt or mil, measure caliper: the physical thickness of a single sheet. One point equals one thousandth of an inch. For cardstock, 8 pt lands near 200 gsm, 10 pt near 250 gsm, 12 pt near 300 gsm, 14 pt near 350 gsm, 16 pt near 400 gsm, and 20 pt near 500 gsm. Two papers can share a gsm number and differ in points, which is why a dense, tightly calendered sheet can feel thinner than a bulky one of the same weight.
Caliper, Not Weight, Decides How Paper Behaves
Stiffness rises quickly as thickness increases, so a sheet that is 20 percent thicker can feel twice as rigid. That matters at the fold line. A thin sheet buckles into a soft crease; a thick one cracks along the spine unless you score it first. Caliper also determines how a sheet travels through a die cutter and how much space it takes up in an album. When two papers of the same gsm behave differently, caliper is usually the reason.
The Cardstock Weight Cheat Sheet
These ranges cover the overwhelming majority of paper-craft projects. Keep them in mind as a starting point, then adjust for the finish and your tools.
- 65 to 80 lb cover (176 to 216 gsm): layering panels, stamped pieces, photo mats, lightweight card fronts glued onto a stronger base
- 80 to 100 lb cover (216 to 270 gsm): the workhorse range for A2 card bases, pocket scrapbook cards, tags, and card making cardstock
- 100 to 110 lb cover (270 to 300 gsm): sturdy single-fold cards, invitation bodies, small gift boxes, mini album pages
- 110 to 130 lb cover (300 to 350 gsm): wedding suites, gate-fold cards, keepsake covers, menus
- 14 to 18 pt board (350 to 450 gsm): packaging, book covers, album covers, chipboard-style layers
- 20 to 24 pt board (450 to 600 gsm): rigid boxes and display pieces, best cut with a die cutting machine rather than by hand
Picking a Weight for Specific Crafts
Greeting Cards
An 80 to 100 lb cover sheet folds into a respectable A2 card, but 100 to 110 lb is what makes a card feel substantial in the hand. A2 measures 4.25 x 5.5 inches folded, which means two cards come from one 8.5 x 11 sheet. Always score before folding anything at 100 lb or above. Run a bone folder along the score line and burnish the fold flat, and the card sits square instead of springing open. If your design stacks six or seven layers, drop the base to 80 lb so the envelope does not bulge.
Scrapbook Pages and Albums
For 12 x 12 backgrounds, 65 to 80 lb keeps albums from ballooning. Heavy 110 lb sheets are best saved for covers, dividers, or single pages that go in a frame. Photo mats sit nicely at 65 lb, since they add color without bulk. If you build scrapbook layouts with a lot of stacked paper, weigh the finished page in your hand; anything that feels like cardboard will make a 40-page album hard to close.
Die Cutting and Punches
Intricate thin dies release cleanest from 65 to 80 lb paper, because the die can push through without crushing the fine bridges between cuts. Simple shapes handle 100 to 110 lb without complaint. Manual punches max out around 110 lb; force anything heavier and you risk bending the punch mechanism or producing ragged, half-cut shapes. Above 12 pt, move to a machine that applies consistent roller pressure.
Boxes, Tags, and Packaging
Score every fold line before bending, then burnish with a bone folder. Small boxes hold their shape at 100 to 110 lb. Any box that will carry weight, such as a treat box or a set of cards, calls for 14 to 18 pt board. Tags can go lighter, around 80 lb, which also lets a hole punch cut cleanly through the top corner.
Invitations and Stationery
The main invitation card looks and feels best at 110 to 130 lb cover. Inserts, reply cards, and details cards should stay at 80 lb so the assembled suite stays under the one-ounce threshold for standard postage. This weight split produces a deliberate hierarchy too: the guest lifts the heavy invitation and finds lighter pieces beneath it.
Common Label Traps to Watch For
“Cardstock” has no legal definition, and budget multipacks sometimes use text-weight stock while printing a familiar number on the wrapper. An 80 lb text sheet is closer to printer paper than to cardstock, so check the grade, not just the number. When a listing gives both pounds and gsm, trust the gsm. When a printer box advertises 80 lb capacity, that figure usually refers to text weight, so a 110 lb cover sheet may still jam.
Paper sold as single-sided or double-sided refers to the coating, not the weight. Double-sided coated stock prints beautifully on both faces but resists stamping ink and heat embossing, because pigment and watermark inks need a raw fiber surface to grab. Uncoated sheets dry faster, take ink without beading, and are the safer all-purpose choice for handmade work. If you need to know whether a paper will cooperate with a new technique, buy a ten-sheet sample pack before committing to a 250-sheet ream.
How Finish Changes the Weight You Need
Finish affects how a sheet behaves as much as its weight does. Glossy coating makes colors pop but shows every fingerprint and refuses to hold embossing powder. Linen and felt textures hide smudges and add interest to solid areas, though they can swallow fine die-cut detail. Metallic and pearl finishes look luxurious at 100 lb and above, but the coating cracks easily along folds, so score lightly and fold slowly. Vellum behaves like a category of its own: feather-light, translucent, and prone to wrinkling when glue touches it.
Testing a New Paper Before a Big Project
Four quick tests tell you almost everything about an unfamiliar sheet:
- Fold test: score and fold a scrap, then open and close it three times. Cracks along the spine mean the sheet needs lighter scoring pressure or a different weight for folded work.
- Ink test: stamp a small image in two colors and wait 30 seconds. Feathering edges suggest a heavily absorbent sheet; beading suggests a coated one.
- Punch or die test: cut a detailed shape and check whether the smallest openings release cleanly or tear.
- Printer test: run one sheet through the rear or manual feed with the printer set to the heaviest stock it supports.
Only after a sheet passes all four does it earn a place in a large run. A few sheets of scrap now cost far less than reprinting a hundred invitations.
Storing Cardstock So It Stays Flat
Paper absorbs moisture from the air, and a humid day can curl even a heavy sheet. Store cardstock flat in a dry space, ideally between 40 and 60 percent relative humidity, away from direct sun. Keep opened packs in zip-top bags or a closed drawer with a scrap of the same paper on top to buffer changes. After a delivery sits on a cold porch, let the paper acclimate indoors for a full day before scoring or die cutting. If sheets do develop a wave, a night under a heavy book or a few minutes in a warm press flattens most of it, though badly warped paper never cuts quite true, which is why warping is worth preventing rather than fixing.
Frequently Asked Questions
Is 65 lb cardstock too thin for handmade cards?
It is too thin for a single-fold base, but excellent as a layering panel or a card front glued to an 80 to 110 lb base. Many card makers keep 65 lb on hand for mats and stamped focal images, where a lighter sheet helps the fold stay crisp.
What is 110 lb cardstock in gsm?
It converts to roughly 300 gsm, or about 12 points of caliper. That combination makes it the standard choice for sturdy card bases, invitation bodies, and small boxes that need to hold their shape without extra layers.
Can I print on 110 lb cardstock at home?
Most inkjet printers manage 80 lb cover without trouble, but 110 lb is hit or miss. Check your printer’s maximum stock weight, use the rear feed or manual slot, and feed sheets one at a time with the heaviest media setting selected. A 100 lb sheet often prints beautifully where a 110 lb sheet jams.
What weight cardstock works best for die cutting?
65 to 80 lb cover gives the cleanest results with intricate dies, because the paper releases from tight corners without tearing. Simple shapes, tags, and boxes can handle 100 to 110 lb. Anything above 14 pt belongs in a machine designed for thick materials.
Does cardstock weight matter for heat embossing?
It matters less than finish. Smooth, uncoated sheets above 80 lb hold powder best and resist the curling that heat can cause. Very thick board takes longer to warm and can warp at the edges, so hold the tool farther back and keep it moving.