A 5 mm grid that measures 5 mm
No account · no upload
One person, one inbox
Email hello@sheetful.ink. That's the only channel — there's no form, no chat widget, no support desk, and no ticket number. Sheetful is run by one person, so replies aren't instant, but real messages do get read and answered.
A lot of what's written on these pages is craft and trade knowledge: ruling measurements, knitting gauge ratios, notation and engraving practice, charting conventions that differ between fields. Some of it is going to be wrong, and a wrong number on a page that exists to be accurate is worse than no page.
If you find an error, point at the page and say what the right figure is. You don't need to be diplomatic about it. Corrections get made and the page gets fixed rather than argued with.
Suggestions are welcome, and the useful ones say what you'd use it for rather than just naming it. The distinction that decides whether something gets built is whether it's genuinely different geometry or a preset on paper that already exists here — a new page that's really the same grid at a different spacing makes the site worse, so those get declined even when the request is reasonable.
Things already considered and turned down, so you know where the line sits: name-tracing and traceable letterform sheets, which need a commercially licensed handwriting font; anything requiring an account, an upload or a server; and several paper types that turned out to be presets wearing a costume.
Nine times out of ten this is print scaling rather than the file. Before writing in, switch on the check ruler in the settings, print one page, and put a ruler against the measured strip near the bottom. If that strip measures correctly and the paper still doesn't, that's a real bug and worth reporting — tell me the paper type, the size, the spacing, and the browser you used, since that's usually enough to reproduce it.
Questions about how something works, how the site is built, or why a particular decision was made are all fine. Requests to publish guest posts, buy links, add sponsored content, or take over the domain are not, and won't get a reply.