Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Charles A. Sherwood
 
Posts: n/a
Default how much will this beam hold?


There is a beam in the ceiling of my garage to support the bathroom above it.
This beam is composed of three 2x12 laminated beams and two 2x12 boards
and spans about 20 feet. This bathroom has a medium size whirlpool
bathtube and I assume this beam is there to deal with the weight of it
full of water. I have attached a hoist to all five boards with
unistrut about 6 foot from one wall.
I have used this hoist to lift machines weighing about 700lbs.

In the very near future I will need to unload a lathe weighing about
1100-1200 lbs. I am wondering if I need to put a temporary post in the
middle of the garage just to be sure it can hold that much weight.

This weight isn't that much more that the weight of water and or some
people in the room.

Opinions?
chuck

  #2   Report Post  
Richard Ferguson
 
Posts: n/a
Default how much will this beam hold?

I vote for putting in a temporary post to be sure, 20 foot span is a
long way. Even if the beam would hold the weight, the deflection of the
beam could crack the drywall somewhere. A 4 by 4 would probably be an
adequate post, and not expensive. Just shim it in place, put in a
couple of nails or screws to hold it in place. As to whether your
attachment to the beams is adequate, I will not address, I don't
normally think of Unistrut for loads of more than a few hundred pounds.

Richard



"Charles A. Sherwood" wrote:

There is a beam in the ceiling of my garage to support the bathroom above it.
This beam is composed of three 2x12 laminated beams and two 2x12 boards
and spans about 20 feet. This bathroom has a medium size whirlpool
bathtube and I assume this beam is there to deal with the weight of it
full of water. I have attached a hoist to all five boards with
unistrut about 6 foot from one wall.
I have used this hoist to lift machines weighing about 700lbs.

In the very near future I will need to unload a lathe weighing about
1100-1200 lbs. I am wondering if I need to put a temporary post in the
middle of the garage just to be sure it can hold that much weight.

This weight isn't that much more that the weight of water and or some
people in the room.

Opinions?
chuck

Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Nu-Tool codless drill won't hold its charge Frank UK diy 13 March 15th 04 09:25 AM
Large timber beam needed Steve Wilson UK diy 4 August 8th 03 01:07 AM


All times are GMT +1. The time now is 05:50 PM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 DIYbanter.
The comments are property of their posters.
 

About Us

"It's about DIY & home improvement"