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56 votes

How much weight can a large screw safely hold in a ceiling plasterboard?

Is this a bad idea? Only if you want the speakers to stay in the ceiling. Don't forget, you're not simply attaching 8kg to a ceiling made of highly compressed powder sandwiched between two pieces of ...
FreeMan's user avatar
  • 47.7k
27 votes

Is a roofing delivery truck likely to crack my driveway slab?

Unless your home is a 20 bedroom mansion I would simply tell them to keep that off your driveway period. You can't tell what load it will take because it depends how packed it still is, what ...
DMoore's user avatar
  • 49.4k
23 votes

Is this wall load bearing? Blueprints and photos attached

Disclaimer: I'm not a structural engineer, nor should you believe the word of a internet stranger. Contact a local structural engineer to take a look so you don't bring the house down. A few details ...
ratchet freak's user avatar
16 votes
Accepted

How much weight can a large screw safely hold in a ceiling plasterboard?

Snap toggles. A snap toggle would be perfect in this situation, most are rated for much higher weights than typical drywall anchors. These anchors specifically say they are rated for much higher than ...
matt.'s user avatar
  • 3,051
12 votes

When running a bigger wire to deal with voltage drop on a 240V circuit, do I now need to run a neutral as well?

My question is now that I'm running a 30 amp wire and only using 20 amps, do I need to run a neutral to send the unused 10 amps back the supply? There is no 'unused 10 A'. However (and this is ...
Neil_UK's user avatar
  • 583
10 votes
Accepted

Can I wire my infrared heating panels to my existing circuits?

TL;DR Only # 1 is legal. The first 15A circuit should be OK. The number to use is actually 12A/1,440W (often referred to as 1500W based on 125V). That's because lighting and these panels are ...
manassehkatz-Moving 2 Codidact's user avatar
9 votes

When running a bigger wire to deal with voltage drop on a 240V circuit, do I now need to run a neutral as well?

There is no "unused" 10 amps. You use the #10 wire because it's big enough to handle the 20 amps without overheating and in your case, without dropping the voltage. If you are running ...
jay613's user avatar
  • 41.8k
9 votes

How much weight can a large screw safely hold in a ceiling plasterboard?

Depends on the quality and thickness of the plasterboard, if you hit a weak spot... I suggest you find the studs that the plasterboard is fixed too and consider adding braces between the studs for a ...
Solar Mike's user avatar
  • 27.8k
8 votes
Accepted

Will a typical house floor carry a 300 lb. safe?

Depends. We always add 2 extra joists under refrigerators just because kitchen floors often have tile flooring and cannot sag without cracking the tile. However, depending on the span of the joists, ...
Lee Sam's user avatar
  • 3,828
8 votes

Garage loft max loading

The Code requires trusses be designed to support the Live Load (snow loads, etc.) plus Dead Loads (lumber supporting the roof and ceiling) plus 10 psf Live Load in the ceiling. (10 psf is not much… ...
Lee Sam's user avatar
  • 3,828
8 votes

When running a bigger wire to deal with voltage drop on a 240V circuit, do I now need to run a neutral as well?

A 30A circuit does not push 30 amps. It pushes 230 volts, and the appliance draws however much it needs. As such, no need to return any extra amps... they just won't be taken. The circuit breaker is ...
Harper - Reinstate Monica's user avatar
7 votes

Is this wall load bearing? Blueprints and photos attached

I'd bet it is bearing. The picture shows a wall with a large opening and a door. I'll assume the plan view is the second floor plan. In the picture you can see your knotty pine running parallel ...
Fresh Codemonger's user avatar
7 votes

Is this wall removal safe?

No one here can tell you it's safe. That has to be done by a structural engineer doing a site visit and examining the building plans. If you're terrified, go to your home store and rent a few ceiling ...
JACK's user avatar
  • 82.9k
6 votes

When running a bigger wire to deal with voltage drop on a 240V circuit, do I now need to run a neutral as well?

As others have said, there is no "unused" power to return. Think about it on a simple 15 amp 120v circuit: You plug a 100 watt lamp into it that uses just under an amp (old style ...
George Anderson's user avatar
6 votes

Is my plan for running cable 250ft to a subpanel OK?

250 feet is too far to be entirely within a structure or otherwise above ground. SER can't go underground. If you're undergrounding any of this, you'll need a buryable wire type such as MH feeder (...
Harper - Reinstate Monica's user avatar
5 votes

SIEMENS AFCI breaker trips with load on any outlets along the circuit

Yes, a neutral-ground short anywhere in the branch will cause a GFCI to trip with any load on the branch. Because all of the loads on a branch have their neutrals in parallel and their grounds in ...
DoxyLover's user avatar
  • 13.1k
5 votes

How much weight can a large screw safely hold in a ceiling plasterboard?

I would like to know what a reasonable load is Approximately 0 kg. These anchors are not designed for use in ceilings. Full stop. The closest I got to using anchors in drywall ceiling was when I used ...
Kuba hasn't forgotten Monica's user avatar
4 votes
Accepted

Can I remove framing members forming a wall below a load bearing beam?

It's highly unlikely that there's a full beam in that wall. There's probably a doubled 2x10 header over the opening. Plan on installing a 3-1/2" by 14" LVL beam (or steel) to span that distance (after ...
isherwood's user avatar
  • 142k
4 votes

Is this wall load bearing? Blueprints and photos attached

You need a layout of the ceiling joists to determined if it is load bearing. However, I would highly lean towards believing that it is a structural support wall. The exposed beam that runs in the span ...
William Payne's user avatar
4 votes

Is this wall load bearing? Blueprints and photos attached

Like most have already said, I also believe it's a load bearing wall.. So for all the clues others have mentioned that it's a bearing wall, I also wanna add, and this may or may not actually be ...
spolite's user avatar
  • 41
4 votes

Is it normal to have your load bearing wall not line up with your basement support posts and joist?

Yes, it’s acceptable to have bearing walls NOT align vertically, provided: 1) the walls are less distance apart than the depth of the joists, or 2) the side that has the upper bearing wall rests on a ...
Lee Sam's user avatar
  • 23.3k
4 votes
Accepted

Does my electrical service have capacity for an 80A EV charging circuit?

While your service isn't overloaded yet, that main panel is quite surely overstuffed! Running a NEC Article 220 load calculation on your main panel, with 4 kitchen SABCs, the given square footage (...
ThreePhaseEel's user avatar
4 votes

SIEMENS AFCI breaker trips with load on any outlets along the circuit

A good possibility is rodent damage. I had that happen twice in a previous home. Exactly the same circumstances...tripping breakers with no load. EDIT: circled the rodent to make it more clear
George Anderson's user avatar
4 votes

240v outlet leg b voltage drop under load

Wow, so many things wrong with this setup. The crux is that you are confused about the role of the 3rd pin on a 3-prong dryer. The third pin is NOT ground. It is neutral. You don't have a ground on ...
Harper - Reinstate Monica's user avatar
4 votes

GFCI Installed right, but no power when load is plugged in

So, it works with the line (including if you plug something into it, presumably, though you're not entirely explicit about that case.) It does not work with the load wires connected, and trips/won't ...
Ecnerwal's user avatar
  • 222k
4 votes

Is there a practical limit to the weight I can put on top of my kitchen cabinets?

The best you can probably do is a proof test. It's just not possible to decide the controlling limit state without significant disassembly. What's the anchor embedment in the concrete, for instance? ...
popham's user avatar
  • 10.5k
3 votes
Accepted

my house has old warped joists. Is joist blocking safe?

I would sister several of the joists, then add solid blocking in each span. The blocking might not be critical, but the ceiling is now open so why not? Solid blocking does not need strapping across ...
John Canon's user avatar
  • 2,005
3 votes
Accepted

Load-Bearing Wall? Parallel to Joists, single story, but has attic supports

Since your front section at one time was a garage the there was a need to provide a fire break wall between the garage and the living portion of the house. Since the garage undoubtedly had an open ...
Michael Karas's user avatar
  • 65.4k
3 votes
Accepted

How to fasten one end of a rope to multiple points so as to distribute load equally?

You can use a concept from rock climbing here. There are methods of attaching to multiple anchors that are meant to distribute the load to three anchors, such as a cordalette: You can search ...
batsplatsterson's user avatar
3 votes

Is this wall load bearing? Blueprints and photos attached

Observations studying the drawing, 100% Load Bearing. Section A will confirm further. Structural engineers will always span the shortest distance for timber joists. Taking out that wall, is ...
Mark O's user avatar
  • 31

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