Classroom Spacing Calculator for Coronavirus
Estimate a classroom's grid capacity from room dimensions and a chosen center-to-center spacing distance.
About the classroom spacing calculator
Classroom spacing examples
Each scenario uses a rectangular grid and rounds the row and column counts down.
| Room and spacing | Grid capacity | Calculation |
|---|---|---|
| 30 ft by 24 ft, 6 ft spacing | 5 rows by 4 columns = 20 students | Both dimensions divide evenly by the selected spacing. |
| 40 ft by 30 ft, 5 ft spacing | 8 rows by 6 columns = 48 students | A smaller spacing produces a denser preliminary layout. |
| 35 ft by 22 ft, 6 ft spacing | 5 rows by 3 columns = 15 students | Partial spacing intervals are discarded rather than rounded up. |
How to estimate classroom spacing
- Measure the clear usable classroom length and width in feet.
- Choose the required center-to-center spacing from current applicable guidance.
- Enter all three values and select Calculate Capacity.
- Transfer the suggested rows and columns to a floor plan and verify clearances on site.
- Reduce the estimate for doors, aisles, furniture, accessibility, and instructor space.
Classroom spacing calculator FAQ
Does this result guarantee a safe classroom?
No, it is only a rectangular grid estimate. Current health guidance, ventilation, room obstacles, accessibility, and emergency rules must also be reviewed.
Why does the calculator round down?
Only complete spacing intervals can support another planned position. Rounding up would place at least one row or column closer than the entered distance.
Should desks be measured edge to edge?
The calculator treats spacing as center to center between occupied positions. If your policy specifies edge clearance, include desk dimensions when determining an appropriate center distance.
How should fixed furniture be handled?
Measure only the clear rectangular area when possible. For irregular rooms, calculate separate usable rectangles or create a scaled floor plan and use the lower practical capacity.
Is six feet always the required distance?
No, requirements and recommendations change over time and differ by jurisdiction and setting. Enter the distance specified by the current authority or institution responsible for your space.