I first started by creating the chair. i did this by first making the base square. I then used the rectangle tool to make the arms of the chair on each side. I then used a 3 point arc to make the curves that resemble the back rest.
I then made the chair into a block.
I then used the distance parameter and then used the array action on the chair.
By using the array action this means i can easily copy the chair in order to make rows of chairs.
I then used the rotate parameter and action, this is so the chair can easily by rotated which makes it easier to position when used in the model space.