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Wiring for a workshop
Posted on 5/21/20 at 6:35 pm
Posted on 5/21/20 at 6:35 pm
I am buying a house that has a 42x21enclosed shed that is brand new. The meter and 200 amp panel are 35’ away attached to the house. How should I wire this thing? I want to put a sub panel in it that I could back feed to the house with a generator? I also want to be able to eventually add a welder, water heater, etc. I may insulate it one day and add a mini split. What should I do now and what kind of cost am I looking at?
I posted this on the hg board, but I know y’all can steer me straight.
I posted this on the hg board, but I know y’all can steer me straight.
7
Posted on 5/21/20 at 7:08 pm to WeagleEagle
I would tackle the two issues separately.
Get a meter for the shop.
Then generator can supply both.
I draw way too much current in my shop to try to feed from the house... Although they are a little farther away from each other than yours.
Get a meter for the shop.
Then generator can supply both.
I draw way too much current in my shop to try to feed from the house... Although they are a little farther away from each other than yours.
Posted on 5/21/20 at 7:18 pm to WeagleEagle
Seeing as I gutted and built my shop from the studs on my own/DIYi can tell you that’s a complicated question.
Maybe add another panel so you can have enough room for dedicated equipment (edit to add: I mean sub panel. I agree with the others here that you need to run lines and set up subpannels in the shop. Ideally I would want 200 amps to the shop so possibly a new meter)
Wire plugs at chest height
220 on every wall or at predetermined locations for equipment
Serious LED lighting
Interior ventilation fan install
One thing I did was built a 2HP dust two stage dust collection system that runs throughout my shop and to every tool. Needed a dedicated circuit for that.
Maybe add another panel so you can have enough room for dedicated equipment (edit to add: I mean sub panel. I agree with the others here that you need to run lines and set up subpannels in the shop. Ideally I would want 200 amps to the shop so possibly a new meter)
Wire plugs at chest height
220 on every wall or at predetermined locations for equipment
Serious LED lighting
Interior ventilation fan install
One thing I did was built a 2HP dust two stage dust collection system that runs throughout my shop and to every tool. Needed a dedicated circuit for that.
This post was edited on 5/21/20 at 9:33 pm
Posted on 5/21/20 at 7:47 pm to WeagleEagle
Easiest thing would be to put a meter on the shed and have its own service. But that way the generator will only feed either the house or the shed.
The other way is to put a panel outside the house with a 2 breakers. One for the house and one for the shed. The transfer switch could feed this panel and you choose how power is distributed.
Only issue with this is if you do intend to put a bunch of equipment in the shed you may need to upgrade your electrical service to a 320/400 Amp service.
For either option, you wire it the same way. Just the equipment feeding the house/shed changes.
The other way is to put a panel outside the house with a 2 breakers. One for the house and one for the shed. The transfer switch could feed this panel and you choose how power is distributed.
Only issue with this is if you do intend to put a bunch of equipment in the shed you may need to upgrade your electrical service to a 320/400 Amp service.
For either option, you wire it the same way. Just the equipment feeding the house/shed changes.
Posted on 5/21/20 at 8:32 pm to WeagleEagle
I would definitely put a sub panel in the shop and supply your lights and plugs from that. To start I would run some 6 AWG wire from the house main panel to the shop, that will get you about 50 Amps service to your shop. It will run the lights and routine use plugs. If you need more than that, get a meter.
Posted on 5/22/20 at 6:10 am to WeagleEagle
I planned to do the same a little while back. 200amp at the house, Ran a 90amp sub panel to the shop with 240 plug for welder.
I wanted to set up the generator input out there but my electrician recommended against it so I still haven't gone back and added the gen feed yet.
Mine is run underground. I had him add a second conduit while the trench was open with a pull rope and then used that to run internet for the shop.
I wanted to set up the generator input out there but my electrician recommended against it so I still haven't gone back and added the gen feed yet.
Mine is run underground. I had him add a second conduit while the trench was open with a pull rope and then used that to run internet for the shop.
Posted on 5/22/20 at 6:30 am to WeagleEagle
The best advice has come from the people who have said put it on its own meter.
All the other info is good too. Height of plugs, separate service panel, etc
I would not back feed through 2 panels to get power in your house
All the other info is good too. Height of plugs, separate service panel, etc
I would not back feed through 2 panels to get power in your house
Posted on 5/22/20 at 6:37 am to Theotherpikecounty
I think you can easily get by with a sub panel.
I have a 40 x 40 shop I totally re did about four years ago. I have a sub panel run from my house about 300' away. I believe it's a 200A panel but I can't remember I'll have to go look. From that sub panel I have 4 220 receptacles off 2 breakers. I then have a mini split on it's own breaker, and another 220 for an air compressor. I have 110 outlets everywhere I could have dreamed I could ever need one. Then I have lights, my set up has served me very well. I did everything myself and the electricity was DIY with the help of a friend a licensed electrician.
I have a 40 x 40 shop I totally re did about four years ago. I have a sub panel run from my house about 300' away. I believe it's a 200A panel but I can't remember I'll have to go look. From that sub panel I have 4 220 receptacles off 2 breakers. I then have a mini split on it's own breaker, and another 220 for an air compressor. I have 110 outlets everywhere I could have dreamed I could ever need one. Then I have lights, my set up has served me very well. I did everything myself and the electricity was DIY with the help of a friend a licensed electrician.
Posted on 5/22/20 at 11:20 am to WeagleEagle
quote:
a 42x21enclosed shed
thats not a shed, thats a large garage
and follow rando's advice, get the power fed separately to each one then get backup power supplies installed for both
the needs of both are far too different to try to combine power sources and backup power
This post was edited on 5/22/20 at 11:23 am
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