Handwriting paper, ½ inch, for A4

Half an inch is where handwriting paper stops being about forming letters and starts being about writing a paragraph without the page running out. Same three lines; less of a gap between them.

If a child is copying spellings or a short passage, this is usually the right size: small enough that a sentence fits on a line, large enough that the midline still means something.

The rules are drawn as real strokes at real sizes — not a picture of lines, and not a background tint. That matters more than it sounds: browsers drop background graphics when printing unless the reader has gone looking for the setting, so ruled paper made the obvious way looks perfect on screen and comes out of the printer blank. Put a ruler on this one. It is the size it says it is.

This sheet is set for A4 — 210 × 297 mm. Paper size is not a preference here: sent to a printer loaded with something else, the browser shrinks the page to fit, and a ruling that has been shrunk is no longer the size it was chosen for. So there is a second copy of this sheet, ruled identically and measured for US Letter.