The macadam court dimensions will vary for each different sports facility, there are no right or wrong dimensions, however if the sports facility is being used for competitive use, it’s worth doing some research or making it apparent that it’s being used for competitive usage as if the facility is for example a tennis court, which is a regular product to be made out of macadam surfacing, will have to fit the criteria set by the ITF to be used competitively or professionally. However if you are a leisure centre or school that will be using the facility primarily for just recreational usage, then the size of the facility does not have to fit within any specification, allowing for savings due to there being less materials used to create the surface.