Paper Stock Comparison Worksheet
Compare paper using the specifications suppliers actually provide, plan a print run and note the questions to resolve before ordering. GSM describes mass per area; it does not uniquely determine thickness or how a stock behaves on a particular press.
Compare up to three stocks
Record the source and date for each specification. Leave a field blank if it is not stated; ask the supplier or printer rather than guessing.
| Specification | Stock A | Stock B | Stock C |
|---|---|---|---|
| Supplier and product name/code | |||
| Source URL / quote date | |||
| Paper family / finish / coating | |||
| Grammage (g/m² / GSM) | |||
| Sheet size and units | |||
| Supplier-stated caliper and units | |||
| Grain direction / surface notes | |||
| Printer/process compatibility confirmed with | |||
| Quantity / availability | |||
| Price basis and date | |||
| Question to resolve before ordering |
Estimate sheet or print-run weight
For flat sheets: mass (g) = grammage (g/m²) × sheet area (m²) × number of sheets. Calculate separate sizes or stocks separately, then add the results. The estimate excludes wrappers, packaging, ink, plates and other items.
Use the Paper Weight Calculator to estimate sheet/run mass from grammage, dimensions and quantity. Its postage indication is weight-only; check the carrier’s current size and thickness limits separately.
Keep GSM and thickness distinct
GSM is mass per area. Actual caliper depends on the paper structure and cannot be determined from GSM alone without an appropriate density assumption. Prefer a supplier-stated caliper for the exact stock. If you model thickness, record the density assumption and treat the result as an estimate—not a product specification.
The Paper Thickness Calculator lets you adjust the density assumption. Its everyday uncoated-paper default is not universal and may not suit coated, recycled, textured or speciality stock.
Questions before committing
- Are the listed grammage and caliper for the exact product, finish and sheet size?
- Has the printer or press operator confirmed the stock is suitable for the feed path and finishing process? Do not infer compatibility from GSM.
- Does the quantity allow for proofs, spoilage and finishing?
- Are price, delivery, tax and minimum order being compared on the same basis?
- If mailing the finished work, have final packed dimensions and weight been checked against current carrier rules?
Method and limitations
ISO 536:2019 describes determination of paper grammage; grammage is not a universal thickness conversion. This worksheet is a comparison aid, not a stock recommendation, supplier endorsement, quote or guarantee of press compatibility. Keep each supplier source and quote date with your notes.
Found something unclear or missing? Send CoryVu feedback and mention this worksheet. Please do not include private supplier quotes or personal information.