Print it the size it says.

Almost every "it printed wrong" story in classroom decor comes down to three settings and one habit. Here is the whole thing, in the order it goes wrong.

1. "Fit to page" is the whole problem

Print dialogs default to scaling a page so its whole area, including the parts your printer physically cannot reach, lands inside the printable region. That shrinks everything by roughly 4–6%. A 10.00″ desk plate comes out at about 9.5″, a 6.5″ letter at about 6.2″, and two sheets printed a week apart no longer match.

You want 100%, Actual size, or Scale: None — the wording differs by program:

Adobe Acrobat / Reader — Page Sizing & Handling → Actual size. Not "Fit", not "Shrink oversized pages".

Chrome / Edge — More settings → Scale → Custom: 100. The default "Fit to printable area" is the trap.

Preview on macOS — Scale: 100%, and uncheck Scale to fit.

PowerPoint — turn off Scale to fit paper before printing an editable file.

2. Letter and A4 are not the same shape

US Letter is 8.5 × 11 inches. A4 is 8.27 × 11.69 inches — narrower and taller. There is no scale factor that maps one onto the other, which is why "just print the Letter file on A4" always costs you something: either the sides get clipped or the whole design shrinks to fit the narrower width.

The honest fix is two files, each laid out for its own sheet, with the pieces kept at identical physical size. That is how every Matchy Room download is built: a desk plate is 10.00″ wide in the Letter file and 10.00″ wide in the A4 file. What changes is the margin around it, not the plate.

Buying elsewhere? Check the listing says Letter and A4 as separate files. "Works with A4" usually means "scale it down yourself".

3. Borderless, margins and the white edge

Most classroom printers cannot print to the paper edge — they hold back roughly 3–5 mm on each side. A design that runs color to the very edge will either lose that strip or get scaled. Two ways through it:

Design around it. Pieces that sit inside a safe margin, with a cut line, never need borderless printing. This is why our letters sit on a color backing that you cut around — the white edge disappears at the scissors, not at the printer.
Or enable borderless if your printer supports it — but expect it to scale the page up slightly, which breaks exact sizes again. For decor, cutting beats borderless.

4. Prove it in one page

Before you print 30 pages, print one and measure it with a ruler. If a piece that should be 10.00″ measures 9.5″, scaling is still on. Thirty seconds now, versus a set of name plates that don't match the ones you print in January.

Paper: 65–80 lb card stock survives a school year on a desk or a door. Plain paper is fine for anything you are going to laminate.

Try it on a real file

The free Soft Sky name tags ship as a Letter file and an A4 file, so you can run the ruler test on both.

Get the free name tags

Next: printing a whole room without draining the ink.