At each end of the court is a "service" line. In the middle along the line of the hoops is a "hoop" line

Notice the four quadrants each side.   They are equal quadrants, but if you wanted an easy game using a 6 metre court length then make the inner quadrant 1 metre long and the outer 2 metres long

Notice too, the gap between the middle hoops is larger than the gap between the rest

The length of the court can be variable between 6 - 10 meters.  You will need to leave a half metre at each end beyond the service line as players will need the room to serve from the service line.

On each of the corners, and at each outer end of the lines of the quarters, you will need a marker. I use plastic flags available from Amazon!

The Width is not so flexible and is usually between 2.4 to 2.6 metres. More on this below.

The ground has to be reasonably flat. The grass should be reasonably short (not ultrashort!). Each player rotates after two games so both will have to put up with any flaws, or minor surface problems.

The view of the hoop line from near each Service line would look like this:-

The grey line above represents the hoop line. The general principle of spacing is that the space width referred to in the diagram above is twice the width of the outside edges of the hoop. 

This means the central area of two spaces as shown above is four times the width of a hoop. A practical arrangement is that each “space” is 20 cms (approx:8 inches) wide. 12.5cm (approx:5 inches) has been allowed for each hoop measured from the outside of the hoop posts. The Space is measured from the outside of one hoop to the outside of the next. This is set this at 20cm (approx:8 inches). The central space between the two inner most hoops is set at 40 cm (approx 16 inches). 

If you want to make the game a bit easier, say for beginners, you could make the space 9 inches wide.

Tip: To lay out the court it is best to get a standard length of timber of 2.4m and mark the centre point, halfway along the wood. From that centre point,  mark out the hoop positions as above. The two ends of the length of wood represents the location of the boundary). Hoops can then be  set in the ground and two boundary markers can also be placed.

The length of wood can then be used to mark out the remainder of the court. A service line is the same width as the hoop line. Its distance from the hoop line could be one and a half times or more the length of the wood giving a length of 3.6 metres or more.

The other advantage of having a template is that when you come to mow the lawn and have to remove the hoops, the template will help you locate all the holes again!

Now you know the layout, it is time to make sure you have the necessary equipment