GSM is only one part of paper selection
GSM measures paper mass per square metre. In general, an 80 GSM sheet has more mass than a 70 GSM sheet, but perceived thickness and opacity can also vary by paper construction.
Why choose 70 GSM?
70 GSM can help keep a high-page-count book lighter and more compact. It is commonly considered for text-heavy books, notes and educational material where portability and economical production matter.
Why choose 80 GSM?
80 GSM usually gives more body and may feel more familiar to users of standard office paper. It can suit workbooks, manuals and publications where a firmer page is desired.
Opacity matters for double-sided printing
A lighter sheet with good opacity may perform better than a heavier sheet with poor opacity. If both sides are printed, check whether text from the reverse side is distracting.
Effect on spine and shipping
Heavier or bulkier paper increases text-block thickness and parcel weight. This matters for long books and bulk dispatch. Finalize paper before calculating a perfect-bound or hardcover spine.
Which should you choose?
For long text-heavy books, 70 GSM may be practical. For a slightly firmer feel, 80 GSM may be preferred. Chaitanya Print can discuss both against your page count, size and binding.
Frequently Asked Questions
Is 70 GSM paper suitable for books?
It can be suitable for many text-heavy books if opacity, print quality and durability meet the project requirement.
Is 80 GSM always better than 70 GSM?
No. It is heavier, but the better choice depends on page count, feel, opacity, binding and budget.
Does higher GSM increase spine width?
Generally yes, because heavier or bulkier paper can make the text block thicker.
Which GSM is better for a very thick book?
A suitable lighter paper can help control thickness and shipping weight, provided opacity and print performance are acceptable.
Select the Right Paper GSM
Share quantity, pages, final size, paper, colour requirement, binding and delivery PIN code for a specification-based printing discussion.