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-   -   How to find support beam on the second floor (http://www.diychatroom.com/f19/how-find-support-beam-second-floor-165562/)

hpdad 12-04-2012 10:15 AM

How to find support beam on the second floor
 
I'm going to buy a small safe (about 24"x24"x12") and anchor it in one bedroom's closet. The room is on the second floor. The floor is not concrete. It's tile floor with plywood under.

Sorry if the question is not about home improvement. If it's not appropriated, MOD please delete it.

Thank You

mae-ling 12-04-2012 10:28 AM

Are you thinking you need it over a beam/support wall because of the weight?
Or are you asking how to find a floor joist?

Also make sure of it's measurements and that it will fit inside the closet.

hpdad 12-04-2012 02:47 PM

Quote:

Originally Posted by mae-ling (Post 1066127)
Are you thinking you need it over a beam/support wall because of the weight?
Or are you asking how to find a floor joist?

Also make sure of it's measurements and that it will fit inside the closet.

Floor joists so I can bolt the safe to. The safe only about 100 lbs. We have walking closet so the size is not a problem.

oh'mike 12-04-2012 03:06 PM

You want to locate a floor joist or two---

First go to the basement and measure the spacing on the ones down there---typically they are 16" or 24" apart---

It's pretty safe to guess that the spacing will be the same upstairs---

Then start looking for something that needs a joist bay for a chase---that will usually be a floor vent for heat--or even a wall vent for return air---remove the vent cover and poke a wire into a gap to see if you can feel the joist on either side----

then it's just a matter of math to find the joists in the location for the safe---

Or just use large wing bolts and forget about the joists---

oh'mike 12-04-2012 03:07 PM

This sure is a home improvement! Enjoy----Mike-------

mae-ling 12-04-2012 03:40 PM

I have worked on many homes where the spacing/location of the joists from 1st floor to second floor was different.
The idea of finding a floor register, they 'usually' mount to a joist side, so you find the joist, then calculate from there.
'usually' 16" but some are 19.2" and some are 24", and they can be altered for things like bathroom plumbing, chimneys and such.
Start with the 16" calculate over and find where you hope it to be.
Pull of baseboard, drill small hole near wall, which baseboard will cover. If you don't hit a joist no big deal. Try the other measurements. Or put a wire in the hole and feel over till you hit a joist.


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