Straight tumblers vs. tapered tumblers
Every wrap problem comes down to one question: is your blank a cylinder or a cone?
A straight-walled tumbler (like a 16oz glass can or a straight skinny) has the same diameter top and bottom. Unrolled, its surface is a plain rectangle. Width equals the circumference (π × diameter), and height equals the cup height. This is the "easy method": no warping needed. Set your dimensions, drop in your art, and print.
A tapered tumbler (the classic 20oz skinny, 30oz, and 40oz blanks) is a truncated cone: wider at the drinking edge, narrower at the base. If you wrap a rectangle around it, the top overlaps while the bottom gapes. Unrolled correctly, a cone becomes a curved annular sector, the "rainbow" arc you see in the preview. This tool computes that arc from your exact top diameter, bottom diameter, and height.
How the cone warp works
Designing directly on a curved arc is awkward, so most makers design flat. The catch: a flat design squeezed onto a cone gets distorted. Straight lines bow and text skews. This tool solves that with an inverse-cone warp: you design on a normal rectangle, and the tool re-maps every pixel onto the cone arc so that once the printed template is wrapped on the cup, your lines look straight and your text reads level.
- Pick a preset or enter your blank's top diameter, bottom diameter, and height.
- Upload your flat artwork (the tool stretches it to fill the wrap area).
- The preview shows the warped, print-ready template with cut and seam guides.
- Download the PNG at 300 DPI, or print straight from the browser.
How to measure your tumbler
Measure the cup you actually plan to press. Tumbler blanks with the same ounce size can vary by brand, and a small diameter difference can shift the curve enough to create a gap.
- Top diameter: measure across the drinking edge from outside wall to outside wall.
- Bottom diameter: measure across the base the same way. If it matches the top, use a straight template.
- Height: measure only the area you want the printed wrap to cover, not the lid or rim hardware.
- Seam overlap: enter about 3mm if you want one edge to overlap the other instead of meeting exactly.
Common tumbler wrap sizes
These preset sizes are starting points for common sublimation blanks. Always measure your own tumbler before printing a full wrap.
| Preset | Top edge | Bottom edge | Height |
|---|---|---|---|
| 20 oz Skinny | 8.77in | 7.41in | 7.90in |
| 30 oz Tumbler | 12.97in | 9.02in | 7.95in |
| 40 oz Tumbler | 11.50in | 9.14in | 9.45in |
| 12 oz Sublimation | 9.14in | 7.41in | 4.72in |
| 16 oz Glass Can | 9.02in width | straight | 4.72in |
| 20 oz Straight Tumbler | 8.17in width | straight | 6.90in |
Using the PNG in Cricut or Silhouette
Download the PNG and import it as a printable image. Before cutting or printing, confirm the final width and height in Cricut Design Space or Silhouette Studio so the software does not resize it during import. If you include output guides, use the red outline as the cut or trim guide.
Printing & pressing tips
- Sublimation: print at 300 DPI onto sublimation paper with sublimation ink, tape tightly to the blank with heat-resistant tape (or a shrink sleeve), then press in a tumbler press or convection oven.
- Measure your blank. The presets are typical sizes, but blanks vary by brand. A few millimeters off on the diameter changes the arc, so measure with a flexible tape or string and update the fields.
- Leave a hair of overlap. Set Seam overlap to about 3mm if you want the wrap to overlap instead of butt-joining.
- Straight blanks can also use printable vinyl with a laminate topcoat for a no-press option.
Frequently asked questions
What size should a 20 oz skinny tumbler wrap be?
The tapered 20oz skinny preset starts at about 8.77in along the top edge, 7.41in along the bottom edge, and 7.90in tall before seam overlap. Many commercial 20oz designs are sold near 9.3in by 8.2in, but blanks vary, so measuring your own cup is safer.
Do I need a straight or tapered tumbler template?
Use a straight template when the top and bottom diameters match. Use a tapered template when one end is wider than the other. The tool detects this from your measurements and switches between a flat rectangle and a curved cone template.
Can I add seam overlap?
Yes. Set Seam overlap to about 3mm if you want the wrap to overlap slightly instead of meeting edge to edge. The overlap is added to the generated wrap width while keeping the cup height and cone angle consistent.
Why does my tumbler wrap gap or wrinkle?
Gaps usually mean the top or bottom diameter is off, the blank is more tapered than expected, or there is not enough seam overlap. Wrinkles can happen when a straight rectangle is used on a tapered cup, or when the wrap is not taped tightly before pressing.
Can I use this with Cricut or Silhouette?
Yes. Download the PNG and import it as a printable image. Confirm the final dimensions after import because cutting software can resize images. If output guides are enabled, use the red outline as the cut or trim guide.