Teaching · Related Services

Does the chair
fit the student?

Most classroom furniture comes in a few sizes and most students are between them. Six measurements tell you whether this chair and desk fit this child: feet flat, thighs supported, desk at elbow height. Enter them here and the page says what fits, by how much, and the usual fix for what does not.

Check a workstationWhat you get
$12one-time · every device you sign in on
Buy · $12

Included with Caveat Classroom and Whole-school licenses. Or get it in the Related Services toolkit, $99 for 96 items.

Your seating checks

The worked example is made up: a second grader at a chair two inches too tall and a desk five inches high, and a seventh grader whose lab stool fits. Saved on this device only.

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What you get

Teaching · Related Services$12 · included with Classroom and Whole-school licenses

What you finish with
A record per student and workstation: student code, room and seat, date, knee height, thigh length and elbow height, seat height, seat depth and desk height, six posture observations and the changes made. Compares each pair with its working range, counts how many of three fit, and names the misfit and the usual fix: a footrest, a lower chair, a cushion or back insert, a desk change or a slant board.
Who it is for
School occupational and physical therapists, and the teachers and assistants who set up classrooms with them.
Format
Browser organizer with a saved record per check. Prints one student’s fit sheet, every check in a table or a blank measuring sheet; downloads a spreadsheet (.csv); exports and imports a file.
Access
$12 one-time, yours on every device you sign in on; the tool opens once you are signed in with it. Included with Caveat Classroom and Whole-school licenses. Also in the Related Services toolkit ($99) and the Teaching Suite pass ($199), and 1 more bundle. Everything you type stays in this browser; nothing is sent to Caveat.
Where it lives
The Related Services space in Caveat Teaching.
Support
Questions about access, an order or a correction: team@caveatacademic.com.

How to use it

  1. Seat the student in shoes, hips and knees near 90 degrees.
  2. Measure knee height, thigh length and elbow height.
  3. Measure the chair and desk.
  4. Watch a 10-minute task and mark posture.
  5. Make the change and check again in a week.

Check a workstation

Working ranges

Working ranges for a seated studentMeasureCompare withFits whenChair seat heightknee height0 to 2 in. lowerSeat depththigh length1.5 to 3 in. clear behind the kneeDesk heightseated elbow height0 to 2 in. higherFeetthe floorflat, or on a footrestHips and kneeseach otherabout level, bent near 90°Working ranges for a seated studentChair seat heightCompare with: knee heightFits when: 0 to 2 in. lowerSeat depthCompare with: thigh lengthFits when: 1.5 to 3 in. clear behind the kneeDesk heightCompare with: seated elbow heightFits when: 0 to 2 in. higherFeetCompare with: the floorFits when: flat, or on a footrestHips and kneesCompare with: each otherFits when: about level, bent near 90°
Ranges used for quick classroom screens, drawn from school ergonomics research; a therapist’s observation of the student at work decides.

Cheap fixes

A sturdy box or a stack of taped books makes a footrest. A firm cushion behind the back shortens a deep seat. A slant board raises the writing surface. Most fits can be fixed this week while a better chair is ordered.

Measure again

Children grow quickly; recheck at the start of each term, and whenever a student moves rooms. A chair that fit in September can be too low by spring.

Sources

  1. Parcells, C., Stommel, M., and Hubbard, R. P. (1999). Mismatch of classroom furniture and student body dimensions. Journal of Adolescent Health, 24(4), 265–273.
  2. Castellucci, H. I., Arezes, P. M., and Viviani, C. A. (2010). Mismatch between classroom furniture and anthropometric measures in Chilean schools. Applied Ergonomics, 41(4), 563–568.
  3. American Occupational Therapy Association. Occupational therapy in school settings and positioning resources (aota.org).
  4. Molenbroek, J. F. M., Kroon-Ramaekers, Y. M. T., and Snijders, C. J. (2003). Revision of the design of a standard for the dimensions of school furniture. Ergonomics, 46(7), 681–694.

The worked examples are made up. The ranges are a screen, not a prescription; a therapist’s judgment of the student at work decides. Use codes for students. Nothing you type is sent to Caveat. Support: team@caveatacademic.com.