Wall Units: If you have a big enough garage, wall units for storage can make your garage a great selling point. This can be a project you do yourself for a few hundred dollars. If you are not a do-it-yourself sort of person look for options that don’t have the look of interior cabinetry. Select cabinets that look like they belong there.  The cost for garage cabinets ranges from a few hundred to a few thousand dollars.
A full-scale apartment or guest house will take you to the top of your budget and beyond at an average between $15,000 to $30,000. You'll need to make all the upgrades mentioned for a family room, along with a separate bath and kitchen. You'll need to run a gas line or a 220 outlet for the stove. You'll also want a private entrance for your apartment, which usually entails adding a fire door.
Purge: Look at your pictures, think of them in terms of a small space. Purge anything that doesn’t work in a small space. With minimal square feet to work with, you don’t need a spa bathroom. While a game room sounds great, the space needed for a pool table is probably not there. Take out anything from your plan that doesn’t fit in a smaller space.
But about those new formulations, one is Epoxy Shield garage floor paint. It's a waterborne coating consisting of epoxy and acrylic resins with color chips that you sprinkle over while the coating is wet. Its manufacturer says it’s specifically formulated to withstand hot-tire pickup, moisture vapor and attack by solvents and chemicals that drip from a car or come in on the car's tires. It comes as a kit that consists of a cleaner-degreaser, two paint components that you mix together and nonskid color chips. To apply, first clean and degrease the floor. Then mix the two-part coating together and roll it on. Finish up by broadcasting the nonskid chips onto the coating while it’s still wet. You should be able to walk on the surface in four hours and drive on it after seven days when it’s fully cured. The kit costs about $60.
Have a ballpark figure in mind. Determine what you can comfortably afford to spend on your garage remodeling or building project. Where does it fall in your list of home improvement priorities? Will you be spending 100% of your remodeling and construction budget on it? Having a clear idea of your price ceiling will help you avoid making choices that are too expensive or elaborate and having to scale back in the process.
Like wood stains, masonry stains are less viscous than paints. They soak into the masonry and don't form a film the way paint does. Unlike film-forming coatings, stains won't make your garage floor feel like the deck of an aircraft carrier. Because of this, stains are somewhat more forgiving and easier to apply and reapply as they wear off and become dirty. One of the oldest (perhaps the oldest) masonry stains available is H&C, now owned by Sherwin-Williams and sold at local paint stores. This venerable brand has been used in the Southern U.S. for many years. It's available in a wide range of colors and it can be tinted to any color you prefer. It's available in two formulations: a solvent-base (that is unavailable in California) and a waterborne acrylic available nationwide. The solvent-based formulation is the tougher one, so if you have both available, choose the stronger route unless you're very sensitive to solvent fumes.

A garage remodel is usually much cheaper than a home renovation because the foundation, roof, and walls are already built. Many garages also have electrical and plumbing installed to some extent. The actual cost of a garage remodeling project, however, depends on what the renovated space will be used for. While a new home gym won't require much in the way of amenities, converting a garage to an office, apartment, or bedroom requires adding significantly more creature comforts.
The home office will cost at least $5,000, making it one of the more affordable options when it comes to converting your garage into living space. Like a bedroom, a home office needs all the basic amenities, such as walls, floors, and a ceiling. It needs climate control and a window. This room may also require additional outlets that let you connect computers, printers and charging stations. You'll need internet access and a high-speed connection, as well as lots of storage and organization options.

Before you install the drywall, temporarily remove the brackets that support the garage door tracks and opener. This will make it easier to install the 4-mil poly and ceiling drywall and will result in a neater-looking job. Start by carefully measuring and recording the position of the tracks and opener. Measure from the nearest wall and from the floor. Then close the garage door, lock it closed and unplug the opener to disable it. Unscrew or unbolt the brackets that support the garage door tracks and remove them. Also remove the garage door opener brackets and support the opener on a ladder. It may be easier to entirely disconnect the opener and set it aside. Reinstall the garage door track brackets using a new section of angle iron on the ceiling. Attach each new ceiling angle iron with four 5/16-in. x 3-in. lag screws driven into the center of the ceiling joist or into wood blocking that’s screwed to the adjacent ceiling framing.
Waterproof paint (for concrete walls) • Paint (dry wall) • Behr concrete cleaner (2 Gal) • Behr Concrete Etcher (2 Gal) • Behr Concrete Bonding Primer (1 Gal) • Behr 1-Part Epoxy Paint (2 Gal.) • MiscPainting Supplies • Stainless steel light switch/receptical covers • Lumber for cabinet over circuit breakers • Gladiator Garage Works workbench-Wall cabinets-tall cabinet • Hooks for bicycles/tools • Tapcon masonary drill bits • PVC (to run wires for garage door openers
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