The classroom seating chart generator built for 20-student classes
Paste a 20-name roster, pick a layout, set constraints, print. Designed for smaller class sizes where grouping and pairs matter most.
Free · No sign-up · PDF export · Any subject or grade
0 students detected · 0 rows of 6
Tip: Roster and constraints stay in your browser. Nothing uploaded.
Trusted by innovative teachers at
Constraint-aware randomization
Separation and pairing that actually works
Paste lists of students who shouldn't sit together (behavior, testing, IEP) and lists who should be adjacent (peer tutoring, ELL, SEL). The shuffler respects both sets of constraints across up to 50 attempts.
Separate-these constraints (don't seat adjacent)
Keep-together constraints (seat adjacent)
50-attempt satisfaction with graceful fallback
Re-shuffle infinitely until the chart feels right
12 students · rows · 4 per row · 1 separation constraint
← Front of classroom →
Layouts teachers actually use
Rows, groups, U-shape, pairs, band, testing mode
Four base layouts cover most classrooms. Adjust seats-per-row to match your room. The rendered chart is print-ready — tape it inside your gradebook or hand it to a substitute.
Rows (traditional grid)
Groups (tables of 4)
U-shape (discussion or seminar)
Pairs (partner work)
Rows
Traditional classroom grid
Groups
Tables of 4 for group work
U-shape
Seminar or discussion
Pairs
Partner work
Shuffle freely
Re-randomize infinite times
Print-ready
Clean grid output
Designed for real classrooms
Every detail, handled
The small things that make a seating-chart tool actually faster than a sticky-note rearrangement.
- Generated in 2 seconds
- Client-side shuffle. No network request, no loading spinner, no waiting.
- Roster never uploaded
- Everything runs in your browser. No account, no cloud storage, no student-data worry.
- Custom constraints
- Separate these students, keep these together. Constraint-aware randomization.
- Print-ready
- Clean grid output. Print a paper copy for the binder or share a screenshot.
About this tool
The classroom seating chart generator built for 20-student classes
A seating chart for a 20-student class is the easy case — and the one most generators treat as an afterthought. Twenty names fit in a 4×5 grid, five groups of four, or two U-shape rows without crowding. This generator lets you paste the roster once and flip between those layouts in one click, with separation and keep-together constraints applied each time. Common sizes for K–2 and upper-elementary pullouts, honors sections, and AP electives.
Layouts that actually fit 20 desks
A 4×5 rectangular grid is the default — neat, easy to walk between rows, and maps cleanly onto most classroom furniture. Five groups of four is the go-to for small-group collaboration (literature circles, math tasks, lab partners). A U-shape with 20 chairs lets every student see the whiteboard and each other — ideal for Socratic seminars and discussion-heavy classes. Ten pairs works for testing days, when you need deliberate separation between neighbors.
4×5 rows (classic desk grid)
Five groups of four (collaborative tasks)
U-shape (seminar and discussion)
Ten pairs (testing integrity)
When 20 is the target class size
Twenty is the sweet spot for pullout intervention groups, honors electives, AP seminar sections, and mixed-age homeschool co-ops. It's small enough that every student gets called on, large enough that group work has real variety. Teachers in these settings typically re-seat every three to six weeks to rotate partnerships; the generator's re-shuffle is built for that cadence.
Constraints at this size
With 20 students, the constraint graph is usually simple — one or two pairs to separate, maybe one IEP-front-row request. The randomizer satisfies those and still produces a genuinely random arrangement. If you're rearranging for a specific accommodation (student with low vision near the board, student with hearing support near the door), list the position in the keep-together field pointing at the spot label.
What prints cleanly on a 20-seat chart
A 4×5 chart fits on a single landscape page at 18pt name labels — readable from a teacher's desk without squinting. For the binder copy, print two-up (two charts per page) so you can compare current vs. last week. Everything renders in the browser; no account, no upload, no tracking.
How it works
Roster in, chart out — in under 30 seconds
- 1
Paste your roster
One student per line or comma-separated. Works with any class size.
- 2
Set layout and constraints
Pick rows, groups, U-shape, or pairs. Optionally add separation or pairing rules.
- 3
Shuffle, print, done
Click generate, shuffle as many times as you want, print or copy. Roster stays local.
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“Students have also appreciated the consistency and immediacy of the feedback I can provide through GradeWithAI. This has enabled them to make necessary corrections and achieve their desired scores on any assignment.”
After the chart
Now grade it just as fast
Seating chart is free forever. When you're ready to grade the work produced in those seats — quizzes, essays, exit tickets — GradeWithAI scores handwritten and digital work against your rubric in seconds.
Upload or sync student work from any LMS
AI grades against your rubric or answer key
Works with typed and handwritten responses
Push grades to Canvas or Google Classroom in one click
Graded 28 exit tickets
Period 4 · 92% class average · 14 seconds
Ava G.
9/10
Marcus R.
10/10
Priya S.
8/10
Got questions?
Seating chart FAQ
Answers to common questions from teachers. Still stuck? Email john@gradewithai.com — replies land the same day.
For discussion-heavy classes, a U-shape or horseshoe gives every student sight lines to both the board and each other. For group work, five groups of four rotates well. For direct instruction or testing, a 4×5 grid is the default — neat, walkable, and easy to read.
Browse by class size and format
Pre-configured seating chart generators
Jump straight to the layout that matches your class. Each page is pre-configured for a specific class size or arrangement format.
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