8 votes

What material pipe to carry water to a detached garage

I don't know California specifics, but "Polyethylene well water pipe" is a common material for direct burial installation - get the 200 PSI version for the thickest walls / most durability. ...
Ecnerwal's user avatar
  • 210k
6 votes

What material pipe to carry water to a detached garage

Ask the supply house if they have a waterworks division or if they can give the name of a local waterworks distributor. (Ferguson is a national waterworks distributor who happens to have branches in a ...
Greg Hill's user avatar
  • 30.3k
5 votes

Running 50 amps to detached garage

Different types of insulation have different temperature ratings that effect ampacity, but your cheapest option is #2 direct burial Aluminum, your safest highest capacity is the same #2 Al in 1.25&...
NoSparksPlease's user avatar
4 votes
Accepted

Appropriate installation for a detached structure electrical sub panel?

One circuit or feeder to an outbuilding If you install a 120/240V split-phase #6 feeder, you have to get rid of the #10 circuit. Then you would feed the well from the subpanel you plan. The only ...
Harper - Reinstate Monica's user avatar
4 votes

Is my existing electrical feed to my detached garage safe?

First there are multiple code violations even if done in the 60’s when Romex or nmb did not have a ground. Having 2 hot and a neutral was ok I believe until the 1999 code change. But the max breaker ...
Ed Beal's user avatar
  • 103k
4 votes

Electrical Upgraded Wiring to Detached Garage? Future Proofing

Basically two separate issues: Feed Circuit Size This is determined by wire size. 90A is a common value because 2 AWG aluminum has a maximum capacity of 90A when used as a subpanel feeder. If you ...
manassehkatz-Moving 2 Codidact's user avatar
3 votes

Installing air conditioner in outdoor building

"window" of window air conditioner is because in a typical building that's the only way to install something that has both inside and outside. A hole cut in your external wall would work ...
manassehkatz-Moving 2 Codidact's user avatar
3 votes

Wiring subpanel in detached garage

A 125A "main breaker" in the subpanel is fine. However, the breaker feeding this, which is in the main panel, must be 80A or 90A depending on the insulation of your wire. Actually, I'd ...
Harper - Reinstate Monica's user avatar
3 votes

Help choosing an outbuilding sub-panel

Lots and lots and lots of spaces. Electricity works for us. It does our bidding. Running out of spaces is a huge, project-killing problem. And spaces are dirt cheap when you buy it (rather more ...
Harper - Reinstate Monica's user avatar
3 votes
Accepted

Help choosing an outbuilding sub-panel

Your main panel has several spaces open! Hurray! That means you have no problem adding a double-breaker for the subpanel. It also means that if you start adding more circuits inside the house then you ...
manassehkatz-Moving 2 Codidact's user avatar
3 votes
Accepted

Multiwire branch circuit means of disconnect

The "means of disconnect" requirement for multi-wire branch circuits (NEC 210.4b) simply requires that there be a means of disconnect, and it disconnect all legs at once. Usually, that is simply the ...
Harper - Reinstate Monica's user avatar
2 votes

Small Concrete Pad with (cutoff) 1/4" x 6-in vertical steel pipes, What is this?

Was probably a ham radio antenna--the kind with a center pivot and a single pole above (sometimes called tilt-over). I had one like it on a property I owned. I just flexed a reciprocating saw blade ...
isherwood's user avatar
  • 135k
2 votes

Detached Garage additional wiring

You could do either, as your main panel seems to have capacity for both a double-pole breaker (240V) and a single-pole. Adding a sub-panel in the garage would give you more flexibility both for ...
Shimon Rura's user avatar
  • 8,212
2 votes

Help choosing an outbuilding sub-panel

Yes, your main panel has breaker space in it that can supply a 240 volt circuit to the sub-panel. Clearly DO NOT go with a 150 amp circuit to your sub-panel. That is overkill and expensive. You'd ...
George Anderson's user avatar
2 votes

Help choosing an outbuilding sub-panel

For the loads listed you may only need a 30A 240v panel, but a 60A breaker to feed the panel would certainly be advisable and would provide plenty of room for expansion. 3/4" Conduit would be ...
NoSparksPlease's user avatar
2 votes

Neutral required at disconnect for NEMA 14-50? No neutral location

Just cap neutral off or use a wirenut to route it thru You are correct that a non-fused AC disconnect box doesn't provide a landing spot for a neutral, just a grounding bar. So, you can either ...
ThreePhaseEel's user avatar
2 votes

How can I build a pavilion without knee braces?

Thanks for posting a picture of our Caribbean pavilion. We achieve proper sheer strength, not from any attached chimney (the one pictured was not attached), but by using massive 16" tall steel ...
Jason's user avatar
  • 21
2 votes

12/3 underground to garage multiple 14/2 wires to bare 12/3. No ground rod anywhere around 14 x54 detached garage

#14 in 20A circuit #14 wire in the circuit will add a couple volts of voltage drop, but that isn't nearly enough to explain such dimming. Something else is wrong. You're always allowed to use bigger ...
Harper - Reinstate Monica's user avatar
2 votes
Accepted

Joining 2x4 to 4x4 base: angles or regular wood screws?

I would put cup head bolts all the way through with washers and nuts on the back. 1/4" is plenty fat enough. Four bolts per post.
Jasen's user avatar
  • 20.5k
2 votes

Installing air conditioner in outdoor building

CEILING FANS I agree with others that a window A/C won't help much on a hot day in this space. You should just install a couple of ceiling fans and keep those big doors open. This will beat A/C ...
jay613's user avatar
  • 36.9k
2 votes
Accepted

For detached garage: buried cable or overhang?

It depends on what else is between the house and garage. If there's ever a chance of bringing a tall ladder, vehicles, or other need for access, burying is the way to go to not have any overhead ...
Milwrdfan's user avatar
  • 4,329
2 votes

Running 50 amps to detached garage

To find out what size, you look at an ampacity table. For 50A, the options are: 6 AWG copper NM-B (but you can't use that outside) or UF-B (underground feeder cable) 8 AWG copper individual wires in ...
manassehkatz-Moving 2 Codidact's user avatar
1 vote
Accepted

Updating detached garage electrical

This is actually a good plan. 40A is fine on 8 AWG aluminum. That is the max on 8 AWG aluminum, so depending on conduit size (because if your existing conduit is usable and big enough you don't want ...
manassehkatz-Moving 2 Codidact's user avatar
1 vote

Joining 2x4 to 4x4 base: angles or regular wood screws?

I would use stainless deck screws. Drill clearance holes all the way through the 2 X 4 , and put pilot holes in the 4 X 4. The SS deck screws can't take a lot of torque and heads will twist off ...
blacksmith37's user avatar
  • 8,291
1 vote

How can I build a pavilion without knee braces?

Deep foundations will obviate the need for knee braces, get a pile driver in to sink some poles deep into the ground and fix the roof to the top. masonry will not be strong unless tied to a rigid ...
Jasen's user avatar
  • 20.5k
1 vote

Wiring subpanel in detached garage

Your breaker is too big for your wires Your 2AWG Al wire is limited to 90A due to the fact that you're limited to 75°C ampacity by your terminations, at least with breakers and panels that are newer ...
ThreePhaseEel's user avatar
1 vote

Wiring subpanel in detached garage

#2 aluminum is only rated for 75 amps below #1 the 60 degree table is used and even if the 90 degree table could be used (it can’t except for derating) that table tops out at 100 amps, So you need to ...
Ed Beal's user avatar
  • 103k
1 vote
Accepted

Bare neutral to subpanel in detached garage

The Power Company did that, didn't they? :) They gave us a very similar setup; thru lugs off the bottom of the main panel, back up the pole to another pole to another panel. They're installing that ...
Harper - Reinstate Monica's user avatar
1 vote

Appropriate installation for a detached structure electrical sub panel?

Remove the existing, under the condition you describe you are only allowed a single feeder set to a detached building. And give yourself a bit of a break on fill and pull a #8 ground, it's good up to ...
NoSparksPlease's user avatar
1 vote

How shallow can a basement be for an accessory dwelling unit (ADU)

Per the International Building Code (IBC): "The portion of a building having its floor subgrade (below ground level) on all sides. This definition of “Basement” is limited in application to the ...
Ack's user avatar
  • 5,719

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