Building Granny Flat. Step 6: Pre-drilling holes for electricity and hold-down rods

In this step experts will show you how to pre-drill the holes for electricity and hold-down rods. This is a not to miss step in building YZY Kit Homes granny flats.

You will need an extended metal drill bit 12 mm to 15 mm for the steel rods. For example, if you are using the 12 mm steel rods, use 15mm drill bit. Also, you will need a wider, about 18 mm bit for electrical cables.  Watch the video of drilling out for electrical points and hold down rods. You will see builders using an extended drill bit. Finally, this is about the last stage before start of assembling.

Expert’s tip: Make sure you have a nice long sharp drill bit to go through the first layer of wall-boards and all the way through the floor joists.

Now the bottom boards are tied down and the holes for electricity and rods are pre-drilled. So, we are ready for the last step before the most exciting part in building YZY granny flats. The next step is marking holes for electricity wires. All granny flat building steps can be found on Builders Guide page.