Planning Poker deck
T-Shirt Size Estimation Online
T-shirt sizing is a fast estimation method where teams group work into broad sizes such as XS, S, M, L, and XL instead of detailed point values.
Best for
- Early backlog refinement when stories are not fully shaped.
- Product discovery, roadmap sizing, or high-level planning.
- Teams that want rough relative size before detailed estimation.
- Non-technical groups that find story points too detailed.
Cards in this deck
- XS: very small or low-risk work.
- S: small, understood work.
- M: typical story size.
- L: larger work with more uncertainty.
- XL: too large or risky; consider splitting.
How to use this deck online
- Create a Planning Poker room in Agile Tools.
- Choose the T-shirt card set during setup.
- Add backlog items manually or import a CSV.
- Invite the team and vote privately on each item.
- Reveal votes, discuss outliers, and save the agreed size.
Facilitation tips
- Define what XS, S, M, L, and XL mean for your team before voting.
- Treat XL as a signal to split or refine the item.
- Use T-shirt sizing for early planning, then switch to points later if needed.
- Keep discussion short; this method works best for fast grouping.
FAQ
What is T-shirt size estimation?
T-shirt size estimation is a relative sizing technique where teams estimate work using broad sizes such as XS, S, M, L, and XL.
When should I use T-shirt sizing instead of Fibonacci points?
Use T-shirt sizing when work is early, vague, or only needs rough grouping. Use Fibonacci points when the team needs more precise sprint planning estimates.
Can I run T-shirt estimation online?
Yes. Agile Tools supports a T-shirt Planning Poker deck with shared room links, private votes, reveal, and saved results.