How to Finish a Detached Garage

What You'll Need
Joint compound
Interior doors
Wood flooring
Carpenters level
Drill and bits
Plumbing fixtures
Electrical fixtures and appliances

There are so many possibilities for things you can do with a detached garage. It can be a workshop, a play area, even an apartment, if local codes allow, and you do a great deal of work. Whatever you want, you still need to finish the detached garage. That involves plenty of work, but it can all be done yourself.

Step 1 - Floor

Begin by clearing everything from the garage and clean it out thoroughly. After this, inspect the concrete floor. If there are any cracks in the concrete, they will need to be repaired before you move on. Use a concrete floor patch for this. Also, inspect the walls and roof for moisture. Repair if necessary, so everything is tight. Also, check the gutter and downspout. If there are none, add them to keep the detached garage dry.

Step 2 - Wiring and Plumbing

At this stage you need to plan where to run and electrical wiring and plumbing. If you’re not sure how to do this, bring in professionals to advise you, or even to run the lines. You will need to have a 220 volt line, for heating the detached garage.

Step 3 - Rooms

You will have the plan of how the detached garage will be divided into rooms. These divisions need to be measured and framed in, along with running any wiring in them. After this, add insulation to the exterior walls and the ceiling and then hang the drywall, making sure you cut through for outlets and water pipes. Complete the drywall by covering with join compound and then sanding it down smooth. Clean out all the dust before proceeding.

Step 4 - Kitchen and Bathroom

If installing a kitchen and bathroom, you need to put in the cabinets and fixtures at this point. Install a level sub floor in these rooms first, and then put in everything else. Complete the rooms by painting and then paint the other rooms to your desired colors. Hook up the electricity and check all the outlets. If putting in a washer and dryer, install a sub floor in the laundry area, finish it with linoleum before putting in the appliances.

Step 5 - Floor

The final step is the addition of a wood floor. If your concrete floor is level and in good condition, you will be able to install the floor on top of this. Make sure you use the correct underlayment under the wood. Now your rooms are complete, but you will still need to hang the interior doors that separate rooms, as well as the door frame and trim, including trim around the windows. You’ll find things will move quicker if you paint all the trim before installing it, then finish by painting over the trim nail holes. After one final cleaning the detached garage will be complete.