How to Print Stained Glass Patterns on Label Paper (Then Cut and Sand Like a Pro)

If you've ever wondered how stained glass artists get those crisp, numbered pieces to line up perfectly, the secret isn't a fancy machine. It's a sheet of adhesive label paper and a printer. This method turns your digital pattern into a stick-on cutting guide, so you're tracing nothing and guessing at nothing. You cut exactly where the line tells you to.

This guide walks through the full process: downloading your pattern, printing it correctly, sticking it to glass, cutting along the numbered pieces, and grinding the edges smooth. If you're working from one of our beginner pattern kits, each one already includes a numbered cutting template sized for this exact method.

What You'll Need

• A downloaded pattern kit (numbered cutting template, color mockup, and cut list)
• Printable adhesive label paper (full-sheet sticker paper, sometimes sold as "printable vinyl" or "printable label paper")
• A printer (inkjet or laser both work)
• Scissors
• Glass cutter and running pliers
• A glass grinder or hand sanding stone
• Safety glasses and cut-resistant gloves

Step 1: Download and Check Your Pattern

Open your pattern kit and locate the numbered cutting template. This is the black-and-white file, not the color mockup. The color version is for reference while you're choosing glass; the numbered template is what you'll actually print and cut from.

Before printing, check the file's dimensions against your intended finished size. Every Sunlit Pane pattern includes a scale reference, so you can print it at 100% and know it'll come out true to size. If you want a larger or smaller finished piece, resize the whole template proportionally rather than stretching it unevenly, or the pieces won't fit back together.

Step 2: Print on Label Paper, Not Regular Paper

This is the step that makes the whole method work. Load your printer with adhesive label paper instead of standard printer paper.

A few things to check before you print:

• Print at 100% scale (sometimes labeled "actual size" in your print dialog). Never use "fit to page," which will resize your pattern and throw off every measurement.
• Use black and white or grayscale if your printer offers it. You want crisp, dark lines, not a color cast that makes numbers harder to read.
• Test on regular paper first. Print one page on scrap paper, hold it against your cut list measurements, and confirm the scale is correct before you commit your label sheet.

Step 3: Cut Out and Stick Down Each Piece

Once printed, cut around the outer border of the pattern with scissors, then peel the backing and stick the whole labeled sheet onto your glass. For patterns with multiple glass colors, you'll cut the paper template apart piece by piece first, matching each numbered section to the glass color listed in your glass legend, then stick each individual piece onto its matching glass.

Press out any air bubbles as you go. A bubble under the paper can shift your cut line slightly, which matters more than it sounds like on smaller pieces.

Step 4: Cut Along the Lines

With the pattern adhered directly to the glass, score along the printed line using your glass cutter, following the edge of the paper as your guide. Use steady, even pressure and one continuous pass rather than going back over the same line twice.

After scoring, break the piece along the line using running pliers or by hand, depending on the cut. The paper stays on during this step. It doesn't interfere with the score or the break, and keeping it on helps you confirm you're following the right numbered piece as you go, especially once you have several pieces cut and laid out.

If a shape includes a curve or notch, you may need to make relief cuts first (small straight scores that let you break away excess glass in sections before shaping the final curve). Every Sunlit Pane pattern is designed to avoid tight inside curves and narrow points that are hard to cut cleanly, which is part of why our patterns stay beginner-friendly.

Step 5: Peel the Paper and Grind the Edges

Once a piece is cut, peel off the label paper. Adhesive backing occasionally leaves a light residue. A bit of glass cleaner or rubbing alcohol on a cloth takes it right off.

Now grind. Run each edge along your glass grinder (or hand sanding stone if you're working without one) to smooth the rough edge left by the break and to fine-tune the shape so it matches its neighboring pieces. Grind in short, light passes rather than pressing hard in one spot. You're aiming for a smooth, slightly frosted edge, not reshaping the whole piece.

Dry-fit each ground piece against your color mockup and the pieces around it as you go. It's much easier to grind a little more off now than to notice a gap after you've foiled and soldered everything together.

A Few Troubleshooting Notes

My pattern printed smaller than expected. Check your print settings for "fit to page" or "shrink to fit," and disable it. Print at 100% or "actual size."

The label paper won't stick well to my glass. Make sure the glass is clean and dry before applying. Any dust, oil, or residue will keep the adhesive from grabbing.

My cut piece doesn't match its neighbor. This is normal on your first few patterns. Grinding is where final shape adjustments happen; don't expect a perfect break every time.

If you're just getting started, our Beginner Stained Glass Studio and Learn library have more guides on choosing glass, foiling technique, and finishing your first piece. And if you haven't picked a first project yet, the pig pattern is our most popular starting point at just six pieces.