The main garage lighting should not be on a gfci for safety sake as you never want to be in a dark garage if a gfi trips off however if the lighting fixture is accessible while standing on the grounded floor of the garage then the light fixture should be gfci protected.
Outlets near floor in garage.
Depending on the light location such as near a shower it may need gfci protection as well.
Gfci protected outlets are required in the garage.
Measure from a reference point such as the radiator heating pipes shown to locate the floor outlet so it falls between the 2 10 floor joists.
Garage electrical outlet location.
Garage electrical outlet location.
A 20 amp receptacle is designed to accept the special plug on heavier use appliances and if such an appliance plugs into a 15 amp circuit there is a danger of drawing too much power and.
Outlets in floors in countertops.
Find a location for a recessed floor outlet box.
Then use an 8 in.
There is no danger to installing 15 amp outlet receptacles on a 20 amp circuit in fact this is the standard practice but under no circumstances should a 20 amp receptacle be installed on a 15 amp circuit.
Height rules for electrical receptacles.
Like the kitchen have the outlets placed in convenient locations that do not place the cords anywhere near running or standing water.
In the garage electrical outlets should be 18 or more above floor level is this a personal recommendation based on your own knowledge regarding the potential for arcing sparking at receptacle outlets under certain conditions or do you have a specific nec or other authoritative regulatory document.