We need chairs for K-12. Is there a standard height guide by age group?
Yes—chair height should match student size for proper posture and focus. Here's a grade-level guide:
| Grade Level | Typical Student Height | Recommended Seat Height |
|---|---|---|
| Pre-K / Kindergarten | 40-46 inches (100-115 cm) | 10-12 inches (25-30 cm) |
| Elementary (1-3) | 46-52 inches (115-132 cm) | 12-14 inches (30-35 cm) |
| Elementary (4-5) | 52-58 inches (132-147 cm) | 14-16 inches (35-40 cm) |
| Middle School (6-8) | 58-64 inches (147-163 cm) | 16-18 inches (40-45 cm) |
| High School (9-12) | 64-72 inches (163-183 cm) | 18-20 inches (45-50 cm) |
The "Feet Flat" Rule:
Students should sit with:
- Feet flat on the floor
- Knees bent at 90 degrees
- Thighs parallel to floor
- Desk 1-2 inches above elbows when seated
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