I was trying to look around but didn't find much info. Does anyone have any
clues on what "Bond Weight # estimate" is? This is shown in the
perfect-bound cover template extension.
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Marcin Floryan scrisse:
> I was trying to look around but didn't find much info. Does anyone
> have any clues on what "Bond Weight # estimate" is? This is shown in
> the perfect-bound cover template extension.
Forwarded from John Bintz:
In English paper measurements, bond weight is one of several types of
paper weight/thickness measurements. Unfortunately, those measurements
are very subjective, unlike the Metric system of paper measurement,
which is very simple and standardized. For *most* paper stocks, the
bond weight measurement is the most similar across product lines.
However, the thickness of one sheet of 20# bond weight paper for one
paper stock, for example, can be completely different from another.
After researching a lot of different common paper stocks here in the
US, and throwing those stock sizes into a spreadsheet, I came to the
formula that is used in the perfect bound cover generator as a decent
"best guess" conversion of bond weight to paper thickness. If that's
all you have, then that should be close enough for most tasks.
If you're printing a book with a serious printer, though, and you need
to get the exact thickness of the spine for use in generating a perfect
bound cover, you need a more precise measurement for paper thickness,
with Caliper thickness or a derivative like Points being the preferred
measurements. A lot of printers nowadays, knowing what paper stocks
they'll be using for printing your book, can calculate the spine
thickness for you once you give them number of pages. Here's one
example from the comic PoD company Ka-Blam:
I put together my research onto my Website, along with links to various
paper companies and printers who have a lot more documentation on the
Sorry for the confusion, but paper measurements here in the US are very
confusing. :/ If you have any other questions, feel free to send them
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