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Step 3Fixing the beams
Once the posts are dug in, you will need to set the height of the raised garden. Use a string line to get an appropriate height and to get the garden level. The garden should be easy to reach over, so generally anything less than 1m should be good.
Once this level is set, cut all of the posts to this string level height.
The next step will be to notch each post so that the beams will be able to sit onto something. Using the level line, calculate how deep the notch will be. This will usually be the size of timber beams you are using. In this example I have used a 100 x 50mm timber section, therefore cut down 100mm and into the post 50mm from the front of the post. Cut out with a saw as level as possible.
Sit the beams on the notches and prepare to fix to the posts.
With the beams in place, drill holes and screw beams to the posts. Ensure that the screw is long enough to go through both. Countersink holes if you like. If you have any corners, these may want to be mitred, however these sort of decisions are up to you.
Once this level is set, cut all of the posts to this string level height.
The next step will be to notch each post so that the beams will be able to sit onto something. Using the level line, calculate how deep the notch will be. This will usually be the size of timber beams you are using. In this example I have used a 100 x 50mm timber section, therefore cut down 100mm and into the post 50mm from the front of the post. Cut out with a saw as level as possible.
Sit the beams on the notches and prepare to fix to the posts.
With the beams in place, drill holes and screw beams to the posts. Ensure that the screw is long enough to go through both. Countersink holes if you like. If you have any corners, these may want to be mitred, however these sort of decisions are up to you.
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