
Sizing a Classroom Chalkboard Wall
Classroom boards fail for two reasons: the wall is too short for the teaching, or the board was made in one piece when it should have been two.
The Three Metre Rule
A chalkboard run longer than three metres is built as two chalkboards working together rather than one panel. Under three metres it is made as a single board. Knowing this before you measure changes how you plan a wall, because the joint position is a design decision rather than an accident.

Buying Vertical Space Instead Of Horizontal
Where the wall is short but tall, a rise and fall board splits the writing area into two panels that slide vertically. The lecturer fills the upper panel, drops it down and keeps writing, so a long derivation stays visible.
Sharing The Wall With a Projector
Where a projector shares the front wall, a push pull system solves both problems at once: two or three sliding panels, with a matt projection panel in the centre and chalkboard panels either side.

When The Wall Is Simply Too Narrow
A three in one folded board opens to roughly three times the width of its centre panel and folds flat again. It is the answer for classrooms whose front wall carries a door or a window.

What The Guide Refers To
Rise and Fall Green Chalkboard
Push Pull Whiteboard and Chalkboard System
Three in One Folded Green Chalkboard
Who This Matters To
Questions On This Topic
What sizes are standard on a rise and fall board?
1800x1800, 1800x2400, 2000x1800, 2000x2400 and 1200x3600mm, with custom sizes available.
Why does three metres matter?
Longer than three metres we build two chalkboards that work together; shorter and it is a single board.
Can chalk and dry erase be on the same wall?
Yes, on a push pull system each panel is specified separately.
Apply This To Your Own Order
Send the room, the wall or the coil specification and we will tell you what we would build.
