This was an outdoor area at home but it was never used so I decided to put in bifold doors, a side window and fixed glass surrounding this space. We gained an extra room and created a new space away from the existing lounge with great views of the garden. A little chill out zone. The bifolds needed a channel cut into the slab for them to track on. I’m using my demo saw with the water attachment to make two saw cuts 20 mm apart and 20 mm deep, then chip out the channel with a small electric jack hammer.