Stop Estimating in Numbers: Why Your Team Needs Pumpkins and Whales
A number on the board becomes a deadline in someone's head. Trade the numbers for pumpkins and whales.
Read →T-Shirt Sizing
Estimate effort with T-shirt sizes (XS to XXL) for relative, low-precision sizing.
Start a fresh room pre-loaded with this deck and share the link with your team — no sign-up required.
The T-Shirt Sizing deck
XS
S
M
L
XL
XXL
?
local_cafe
Every deck includes the standard ? (unsure) and coffee (need a break) cards. The host can still edit the deck mid-session.
When to use this scale
T-shirt sizing is great for early backlog grooming where exact numbers aren't needed yet. Teams compare items by relative effort: XS, S, M, L, XL, XXL. It avoids false precision and keeps discussions focused on whether something is small or large rather than arguing over 5 vs 8.
Other estimation scales
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