How to Size a Sublimation Tumbler Wrap
What size is a tumbler wrap?
A tumbler wrap is sized by circumference and height, not by ounces. Measure around the top rim, around the base, and the height you want to cover, then add a small seam overlap. For a standard 20 oz skinny that works out to roughly a 9.5" × 8.5" print area — but the exact size depends on your specific blank, which is why measuring beats guessing from an ounce label.
Common tumbler wrap dimensions
Starting points for popular blanks. Always measure your own tumbler — brands vary by a few tenths of an inch, which is enough to leave a white gap at the seam.
| Tumbler | Top circ. | Bottom circ. | Height |
|---|---|---|---|
| 20 oz skinny | ~9.3" | ~8.5" | ~8.0" |
| 30 oz skinny | ~10.6" | ~9.0" | ~8.3" |
| 16 oz glass can | ~8.5" | ~8.5" | ~5.0" |
| 12 oz can cooler | ~8.3" | ~8.3" | ~4.7" |
Notice the glass can and can cooler have equal top and bottom — those are straight, so the wrap is a plain rectangle. Skinny tumblers are tapered, so their wrap is curved.
Straight vs. tapered: why the shape matters
A straight-walled blank (same circumference top and bottom) unrolls into a clean rectangle. A tapered blank — wider at the top — is a truncated cone, and a cone unrolled flat is a curved arc, not a rectangle. Wrap a rectangle around a tapered tumbler and the top or bottom edge won’t line up: you get wrinkles, a slanted seam, or a white sliver. This calculator detects the taper from your measurements and gives you the curved template radii so an all-over design lands perfectly.
Printing tips for a clean wrap
- Print at 100% scale — turn off “fit to page,” which silently shrinks your design.
- Mirror the image before printing for sublimation, as always.
- Keep important text and faces away from the seam line and the very top/bottom edges.
- Test on paper first: cut out the wrap and dry-fit it on the blank before you press.
Pro tip: Brands drift. A “20 oz skinny” from two suppliers can differ by 0.2–0.3" in circumference — enough to leave a gap. Measure each new blank style once, save the numbers, and reuse them.
From template to profit
Once your wrap fits, make sure each tumbler is priced to actually make money:
- Tumbler Cost Calculator — add up blank, ink, paper, and labor for your true per-tumbler cost.
- Sublimation Pricing Calculator — price shirts, mugs, and tumblers with a healthy markup.
- Etsy Profit Calculator — reverse 2026 Etsy fees to set your listing price.
Frequently Asked Questions
What size is a 20 oz skinny tumbler wrap?▼
A standard 20 oz skinny tumbler is about 8 inches tall with a top circumference near 9.3 inches and a bottom circumference near 8.5 inches. Because the top and bottom differ, the true all-over wrap is a slightly curved shape rather than a plain rectangle — it fits on a standard 8.5 x 11 inch sheet. The calculator gives the exact print size for your specific blank.
Why is my tumbler wrap curved instead of a rectangle?▼
Most tumblers are tapered — wider at the top than the bottom. When you unroll a tapered cylinder (a truncated cone) flat, the result is a curved, banana-shaped panel, not a rectangle. If you wrap a straight rectangle around a tapered tumbler you get wrinkles and gaps at the seam. The calculator detects taper automatically and gives you the curved template radii when needed.
What paper size do I need for a tumbler wrap?▼
Most 16-30 oz tumblers fit on Letter (8.5 x 11 in) sublimation paper. Larger tumblers, mugs with handles, or designs that need extra bleed may require Tabloid (11 x 17 in). The calculator recommends a paper size based on your tumbler's measurements, and flags when a design needs to be tiled across multiple sheets.
Should I add overlap to my tumbler wrap?▼
Yes. Add about 0.25 inch of overlap so the two ends of the wrap meet cleanly with no white gap showing at the seam. Some crafters use up to 0.5 inch for a more forgiving seam. The calculator adds your chosen overlap to the wrap width automatically.