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Old 08-06-2010, 07:39 AM   #1
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Finishing the upstairs of a detached garage


Earlier this year a garage was built on my lot. The upper area is separated from the workshop below, and was just roughed in with a couple light fixtures and one outlet. It is a large open space now (32x16 with 8' ceiling), with a window on either end, and outside stairs on one end. My plans include addition of a wall separating the area into two 16x16 rooms.

I'm near a point where I'd like to finish the area out, but before I get too far along in planning, I'd like some feedback on how best to prepare for future expansion/improvements.

Primary electrical:
- I am tentatively planning on 10 outlets in the area, 5 per room.
- Since there may be occasional heavy draw from music equipment, amps, ect, how many outlet circuits should I plan on?
- When is it appropriate to use 20am outlets over 15am outlets?

Low-voltage
- In addition to wiring for coax & ethernet, I'd like to plan for DIY security. For camera installations in two ceiling corners (one per room), should I plan on running coax, ethernet, or both?
- One window is 14' off the ground, but the other is within reach from the stairs. I'd like sensors installed on both windows (and all doors) to be safe. What type of wiring is used to 'rough in' sensors and motion detectors?

Are there any additional considerations for security or electrical?

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Old 08-06-2010, 08:45 AM   #2
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Finishing the upstairs of a detached garage


Are you going to make this into a living space? Maybe put a bedroom and kitchen in?
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Originally Posted by sheslostcontrol View Post

Primary electrical:
- I am tentatively planning on 10 outlets in the area, 5 per room.
Put them every 12' along the walls.
Quote:
- Since there may be occasional heavy draw from music equipment, amps, ect, how many outlet circuits should I plan on?
That really depends on your needs and what the rooms are going to be. If you have space in the panels I would install a couple dedicated receptacles for your high current drawing equipment.
Quote:
- When is it appropriate to use 20am outlets over 15am outlets?
Other than where the code requires 20A circuits, this could be a big argument. Some electricians install all 20A circuits for receptacles, some never do. Some people run 20A to places like the living room where the home theater will be installed. For you, since this is a small space, why not just run all #12 wire and put all the receptacles on a 20A circuit? For that size space, it won't cost much more ($20-30 extra).
Quote:
Low-voltage
- In addition to wiring for coax & ethernet, I'd like to plan for DIY security. For camera installations in two ceiling corners (one per room), should I plan on running coax, ethernet, or both?
Depends on what type of camera you want. Don't forget to run power wires too.
Quote:
- One window is 14' off the ground, but the other is within reach from the stairs. I'd like sensors installed on both windows (and all doors) to be safe. What type of wiring is used to 'rough in' sensors and motion detectors?
Contacts will require 2 conductor cable while motion detectors require 4 conductor cable. The gauge depends on the system. I really don't install many alarms and when I do I just use thermostat wiring.
Quote:
Are there any additional considerations for security or electrical?
It depends on what this building is going to be used for. You mention having cameras in the rooms themselves, so this sounds like it might be some type of commercial work being done in here? If you need cameras inside the building to record someone who is already inside, then you need to either lock up the recorders or install them off-site.

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