Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

Re: WOOD - Load bearing studs in a party wall

[Subject Prev][Subject Next][Thread Prev][Thread Next]
O.K., so you're saying that you do not believe that no blocking is required
if the framing consists of 2x4 studs but *might* be required if the framing
consists of 2x6 studs? What about 3 story construction where the design
intent is to use 2x6 studs (on a 2x8 plate) instead of 3x4 studs (on a 2x6

I could, as Dennis Wish suggests, to use 2x4 blocking where the edges of the
blocking do not touch either outside face, if this is really necessary.
Considering this blocking at mid-height, the l/d drops to under 33 and, I
believe the allowable stresses would exceed approximately 400 psi or 3,300
lbs capacity. This should be plenty, even with the 0.78 factor.

Based on compression perpendicular to grain stresses of 625 psi, the
allowable axial load of a 2x6 would be in excess of 5k, so I don't think
that criteria is critical.

Bill Allen
-----Original Message-----
From: Charles Greenlaw <cgreenlaw(--nospam--at)>
To: seaoc(--nospam--at) <seaoc(--nospam--at)>
Date: Thursday, October 23, 1997 1:46 PM
Subject: Re: WOOD - Load bearing studs in a party wall
>Staying one edge of the stud does seem legitimate. A 2x4 has its far edge
>pretty close to its near edge,compared to 2x6's. Cross-grain crunch at the
>end bearings should impose a modest stud stress anyway. Half-inch gyp
>sheathing nailed with that trade's nails would appear comparable to the 1/4
>in paneling scheme. So it would take use of engineering judgment and
>invoking the code's provisions for alternative materials and methods after
>Chuck Greenlaw SE, Sacramento CA