For a full breakdown of DIY garden room costs click here: https://thediyfix.com/gardenroommat...

This is the first video of my full DIY garden room build.

In this video I show the process I used to create a concrete slab for the base of my garden room. The video includes all the prep work, including building the formwork This includes two techniques to make sure your base is square as well as the technique I use to make sure the concrete base is level.