How to Convert a Garage to an Office DIY

Updated April 17, 2017

Working at home can be a rewarding experience both personally and financially. However, an office is recommended to work in a peaceful environment. Transforming your garage into an office can be done in a few days and can provide you with that working space.

Draw the plan of your new office and make a list of the electronics you will need. Making plans will determine where to put the lights and electrical sockets. It will also allow you to decide between a custom-built desk and buying one in the store.

Install new electric cables for the lights and the office equipment. Check for the power requirement of all the electronic and lights you plan to install in your office. Check for peak power and not average power. For example, a laser printer can consume 100 watts when printing but 400 watts in the first few seconds after turning it on.

Insulate the walls and ceiling of the office. A cold or draughty office is not a good place to work. Be sure to install the amount of insulation recommended for your area. Batt insulation loses its efficiency if compressed. Refrain from using 6-inch batt insulation with a 4-inch stud wall as you might spend more for equivalent results.

Install the drywall, using 1-inch screws for ½-inch drywall and 1¼-inch screws for ¾-inch drywall. The various building codes all call for one screw every 6 inches on the top and bottom and a 1-inch screw every 12 inches on each of the studs . Drive the screws 1/8 inch under the surface of the drywall to be able to cover them with mud.

Put mud in between the sheets and on top of the screws. Sand before applying the primer and the paint.

Lay the flooring down after finishing the walls and ceilings. Clean the floor thoroughly if you had any oil, gas or any other chemical spill in your garage. Once done, the type of floor is up to your personal preference. Remember, however, that deep carpet can capture allergens and dust easily.


Foam insulation, if your budget allows it, is the best choice as it will insulate and seal, preventing air leaks that lower the batt and blow-in insulation efficiency. Mudding between sheets need to be done in several layers to avoid cracks in the mud. Try to keep each layer 1/8 inch to ¼ inch deep. Wait for the first layer to dry before applying the second one.


Remember to follow all the safety rules of your power tools. Wear a breathing mask when cutting drywall.

Things You'll Need

  • Drywall
  • Mud
  • Screws
  • Flooring
  • Plywood
  • Drill
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