Printable & Customizable Graph Papers: Paperkit
If prototyping websites on paper is a part of your workflow, papers with the right grid simplify the process so much.
Paperkit is a website that allows us to create any type of graph paper we want with the right margin, spacing and size (A4, A3, legal, tabloid and letter).
It is also possible to set the stroke size + color and get a dotted or lined output.
Once the paper is ready, it is available as a PDF download.