How to drill straight?
Jim Yanik wrote:
Boden wrote in :
Robert Allison wrote:
Pat wrote:
A 5/8" hole through a 4" wide beam reduces the load capacity by 1/4.
Unless your beam is oversized you may damage it enough to cause it to
fail.
Please don't top post.
In addition, I would like to hear from the engineers in here about the
validity of the above statement. I do not believe it for a minute.
This is done quite often and I would be surprised to learn that it
compromises the integrity of the beam. Unless you meant to say by 1/4
of 1 percent.
It depends on more information than is provided here but the load
carrying capacity is decreased by AT LEAST 16% and it could be 25%. The
smart thing would be to not drill this hole.
Boden, PE
On a LAMINATED beam?
Yes.
|