Take your Rust-Oleum Chalky Finish Floor Paint base colour (we used Chalk White) and paint around the edges of the room, cutting in a couple of inches.
Next take your large roller and get to work on the main area of the floor. Start at the furthest corner and move backwards towards the door, leaving yourself an escape route.
You will need at least two coats – allow 4 hours between coats. The thinner the coat, the more hardwearing it will be, as it will dry harder.