Room dimensions
Adjust room width and depth so students can connect dimensions with total room area.
Free maths tool
Room builder tool
A free overhead room planner for placing furniture on a grid and comparing room area, covered area and free area.
Furniture pieces
Place beds, desks, rugs, tables, sofas, artwork and custom objects on the grid.
Area totals
Read room area, covered area and free area as the plan changes.
Draw and edit
Draw coloured squares, erase, rotate pieces, undo, clear or create a random room plan.
What the tool does
The room builder tool gives teachers and students an overhead room plan for exploring area in a more realistic grid context.
- set the room width and room depth
- place furniture and artwork pieces on a square-unit grid
- compare total room area, covered area and free area
- create custom objects with chosen dimensions
- draw, erase, rotate, undo, randomise and clear the plan
How teachers use it
Open it on a classroom display when students are ready to connect area with layout, design and remaining space.
- build a room and ask students to calculate the total area
- place furniture and ask how much area is covered
- compare two room plans that have the same total area but different free area
- use custom objects to model classroom furniture, mats or play spaces
Why it is useful
Room plans make area feel less abstract. Students can reason about a whole space, the objects covering it and the space left over.
- extends square-unit area into a design context
- connects multiplication, subtraction and measurement language
- works as a modelling step before independent measurement practice
Frequently Asked Questions
Is the room builder tool free?
Yes. Teachers, students and families can open the room builder tool in a browser for free.
Can it compare covered area and free area?
Yes. The tool shows the total room area, covered area and free area as pieces are added or removed.
Can students make custom objects?
Yes. Students can name a custom object, choose its width and depth, and place it on the room grid.
Is this different from the area tool?
Yes. The area tool focuses on shapes on a square-unit grid, while the room builder uses a room-plan context with furniture and free space.