Choosing chairs for your classroom? Childshape Chairs are scaled so that children can sit with their feet flat on the floor. The relationship of seat to table is another important consideration. An 8" height difference from seat to table will accommodate most children well.
When selecting chairs for your center, consider the height of your tables as well as the ages of the children in your group.

Seat width       10"
Seat depth        7"
Arm height       13"
Seat height       8"

To determine the correct chair and table height check this chart.