Skip to main content
29 votes
Accepted

Is it safe to remove old rusty nails from a wooden beam?

Nails can be removed, even lots of them. Why? Wood fiber Driving a nail into lumber is different from drilling holes of the same diameter: a nail will "squeeze" in, pushing the wood fibers ...
P2000's user avatar
  • 16k
29 votes

Is it safe to screw into a single support beam holding up an entire house?

First that post is not carrying the load of the whole house. The beam is and the beam is attached on both sides. The post's job is to keep the beam from sagging and act as a point load. I would ...
DMoore's user avatar
  • 49k
25 votes

Contractor cut joist hangers to make them fit

No, it’s not acceptable to cut the joist hangers. In order to determine if they are acceptable anyway, there are several issues to review: 1) hangers are notched, 2) incomplete nailing, 3) wrong ...
Lee Sam's user avatar
  • 23.3k
24 votes
Accepted

It appears this support beam is shifting and the drywall is buckling underneath its weight, what would cause this?

Yes, this should be inspected by a competent professional as it could be something serious that needs to be addressed immediately. Water damage could cause this or wood degradation caused by termites ...
matt.'s user avatar
  • 3,051
18 votes

Can I replace a 4x6 for a swing with a 4x4 sandwiched with a 2x4?

You could, but a pair (or triplet) of 2x6s would be more appropriate (and probably cheaper). The strength and stiffness of a horizontal structural member are far more affected by its height than by ...
isherwood's user avatar
  • 139k
17 votes

Is it safe to remove old rusty nails from a wooden beam?

It's the first thing I do when I buy a new place--remove the zillions of nails, screws, hooks, picture wire, and other random crap that the previous owner stuck everywhere throughout the garage and ...
isherwood's user avatar
  • 139k
17 votes

Removing Load-Bearing Wall in Timber-Framed House

What you're proposing and/or actively doing is a major structural change to the building. As such, you need to be sure that it's both safe and building code compliant. There is no way any random ...
jwh20's user avatar
  • 23.4k
15 votes
Accepted

Why mate two boards instead of using one thicker board?

It has to do more with the quality of the the 2x6s vs the 4x6. A 4x6 x 12 board would have to be clear all the way through, with no cracks or knots. Most softwood logs won't produce this board, and ...
gbronner's user avatar
  • 5,678
15 votes

Is it safe to remove screws from a 4x4 support beam without compromising it?

To add further clarity to FreeMan's answer, removing the screws doesn't change the equation. Any hypothetical weakening occurred when you drove the screws into the wood. At that point, some fibers ...
isherwood's user avatar
  • 139k
13 votes
Accepted

Is a main beam being held on by an angle iron a safe construction?

That's a job for a local engineer. He'll need to figure out the demand on that connection based on whatever is going on above its joists (load bearing walls, columns, etc.). He'll probably extend the ...
popham's user avatar
  • 10.4k
12 votes

Contractor cut joist hangers to make them fit

Cutting a hanger is never a good idea and should never be accepted. It's shoddy workmanship by the contractor and there were numerous solutions that could have avoided this (starting with properly ...
indianajonesy's user avatar
12 votes

Is it safe to remove screws from a 4x4 support beam without compromising it?

Unless you put all the screws within a couple of inches of each other (which would be an issue whether you removed them or not), you will not cause any sort of issue in the beam strength by removing ...
FreeMan's user avatar
  • 47.4k
12 votes

Raising a sagging section of my houses central beam ~1.2 inches

The general trick with jacking a house that has sagged over 40 (or 140) years is that you should not un-sag it in a matter of days, or even weeks, unless the sag is very minor. The jack has no problem ...
Ecnerwal's user avatar
  • 217k
11 votes

Is it safe to screw into a single support beam holding up an entire house?

At least in the area where I live, that type of support post is used when a house is modified (wall was removed, to prop up a sagging beam, etc). If the house was designed to have a support post ...
bta's user avatar
  • 1,979
10 votes

code approved way to cut 5"x30" out of a 8" x 10" support beam

If you really have an 8"x10" beam in your basement it is probably supporting a huge amount of weight. Please do not even consider cutting into it without getting an engineer to determine what kind of ...
Hank's user avatar
  • 14.1k
10 votes

Floor Joists Knot

It always happens and was a total miss by the framing crew. But, unless you're springy upstairs it's not really a problem. The adjacent joists will assist just fine for normal empty area loads above. ...
Iggy's user avatar
  • 10.3k
10 votes

Is it safe to remove screws from a 4x4 support beam without compromising it?

For fasteners with diameter less than 1/4", Chapter 12 of the National Design Specification prescribes zero fastener strength reduction based on fastener spacing and end distance. See 12.5.1.1. I ...
popham's user avatar
  • 10.4k
9 votes

Contractor cut joist hangers to make them fit

You never cut hangers unless they are made for cutting. Call in a inspector who will advise you or the engineer who done the design but don't under any circumstances let this go without it being ...
Geoff Foster's user avatar
9 votes

Is it safe to screw into a single support beam holding up an entire house?

Notice the post is not just supporting the beam, it’s holding up ends of the boards that make up the beam! Would strongly recommend consulting an engineer ASAP and having the beam supported correctly. ...
GB540's user avatar
  • 426
9 votes

Cannot figure out how to drywall basement wall underneath steel beam!

You really just have two choices here. The first is to frame some wood structure over the steel beam that you can then attach drywall to. This does lead to a "jut out" as you called it and ...
Michael Karas's user avatar
  • 65k
9 votes

What size beams do I need to lift/support my house?

I will join the chorus of people telling you not to do this, but I'll answer your question to give you an idea of what you are facing. First, I understand why you don't want to call a house moving ...
Cheery's user avatar
  • 5,940
8 votes
Accepted

Where can I find information on making footbridges with a long span?

The Scout Pioneering website contains information on how to build several bridges. I am guessing that most of these are more complicated than what you had in mind, so if you want something simpler, ...
eirikdaude's user avatar
8 votes
Accepted

What torque value for bolts that are holding a steel beam to reinforce a wood floor beam

You have done a lot of research as to torque specifications. However they all relate to the strength of the bolts and nuts. That is not the issue. The torque specification you are looking for is ...
RMDman's user avatar
  • 30.8k
7 votes

Why mate two boards instead of using one thicker board?

Boards that are laminated in some fashion get an overall durability increase (not necessarily net strength increase) because they no longer suffer from a single grain dimension through the thickness. ...
Jeff Meden's user avatar
7 votes

Can I move the posts under the beam in my basement?

Possibly, but you should consult a structural engineer. For the cost of less than a day's work for an engineer you will get an answer that you can rely on. I know, it's unfortunate that you'd have ...
Keith Procter's user avatar
7 votes

Elegant way to jack two materials apart, applying spreading pressure to pin them in place?

Power Wedge with Wing Nut Build a power wedge from some wooden wedges, a bolt and a wing nut. It will be strong, simple to tighten, and seismically safe when the bottom wedge is fastened to the top of ...
P2000's user avatar
  • 16k
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
  • 81.7k
7 votes

Can this post supporting a roof beam structure be moved?

The vertical bit is called the post, which is holding the horizontal beam. Any such changes require consultation with the original architect/engineer or a new engineer. This needs to be stressed, ...
Rohit Gupta's user avatar
  • 6,488
7 votes
Accepted

Can this post supporting a roof beam structure be moved?

Wow... I totally missed the detail that the post is to be moved not removed. Much of this answer is still appropriate but changes to relocating the "green" beam instead of beefing up the &...
FreeMan's user avatar
  • 47.4k
6 votes
Accepted

Steel beams for 22' interior clear span

Just a heads up, spanning 22' while being limited to 4-6" floor depth is extremely cost prohibitive. Deeper is always cheaper, but it sounds like you don't have the space to make this work as planned. ...
Dotes's user avatar
  • 4,819

Only top scored, non community-wiki answers of a minimum length are eligible