... some other countries ; For the British T-Grid System is widely used in Tai Wan Region,Bangladesh,Malaysia ... do you choose ? For the Metric T-Grids System, the size of ceiling board must be less ... 1195mm,like this ; For the British T-Grids System,the size of ceiling board must be longer than ... T-Grid ,please keep them matching with each other ;Metric System or British System ,just make matching for T-Grid ...