The method for laying hard tiles like ceramic, slate, terracotta and quarry is the same. Quarry and terracotta tiles are often laid diagonally across the room and how to successfully complete this project is explained in Laying terracotta or quarry tiles in a diagonal pattern.
You will need to move the guidelines if the width of the border edge is less than half a tile.
Nail a temporary batten around the floor marking out the area where whole tiles can be laid.
Dry-lay a square of nine tiles, if the tile edges don't meet flush against the batten on both sides, then the battens are not square.
With the battens square, push the first tile tightly into the right angle and press into the adhesive.
With a spirit level check that the tiles are level by placing it across each row and then diagonally across the tiles.
Cut the tiles to the required width using a tile cutter.
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