Notching 2x6 Joists?

[crokett]

The porch to the shop is framed with 2x6 joists. When I was building the shop I was clever and set the floor so that the porch side had a ledge for the porch joists to ride on the beam. What wasn't so clever was not checking the install height of the porch. The bottom of the joist falls about 3/4" below the top of the beam. Is there a problem with corner notching the josts if I add a ledger to the beam for the joists to sit on?

[tseavoy]

With the ledger there is certainly no problem. I don't think you need a ledger. The maximum load on a beam is in the middle. The notch adds a little stress concentration but in my opinion it would be inconsequential.

Tom

[crokett]

Thanks. The notch would be about 3/4" by 1". I know the floor joists in my house are notched over a 2x2 ledger but those are 2x10s. I thought I might risk splitting the 2x6s. I won't bother with an additional ledger then.

[pelligrini]

I'm not a structural engineer, but I would think that a notch that small should be OK for the loads involved. Most codes call for a fairly large design load on porches & the like, more than for interior floors. I always thought that it was a little strange to do it that way.

[tfischer]

Doesn't a notch in a joist effectively reduce the spanning capabilities of the joist as if it were the new smaller size? That is, if you notched a 2x6 by 2", it would now have the spanning of a 2x4?

It's hard for me to visualize what you're doing without pictures, but couldn't you attach a ledger to the beam without notching the joists and have the joists sit on that?

[crokett]

It's hard for me to visualize what you're doing without pictures, but couldn't you attach a ledger to the beam without notching the joists and have the joists sit on that?

No. See my OP. I originally left the ledge for the joists to sit on but if I just have the joists sit on the ledger there is about 1" of space between the end of the joist and the shop band joist. The porch joists must be attached to the band.

The notch would be 3/4" deep by about 1" long. The ends of the joists will be nailed to the band joist on the shop. I was thinking about some simpson right angle ties but a ledger will be cheaper and quicker methinks.

[tfischer]

No. See my OP.

I did, but like I said, I'm having trouble following it without pictures. I'm a visual guy

[crokett]

I did, but like I said, I'm having trouble following it without pictures. I'm a visual guy

Ok here ya go. This pic was taken from the side that the porch will be on. I don't think you can see it in the pic but the band joist is set back from the edge of the beam about 1". The ends of the porch joists fit in the vertical space between the siding and the top of the beam. The bottoms of the joists need to be about 3/4" below the top of the beam, hence the notching.

[Russianwolf]

Doesn't a notch in a joist effectively reduce the spanning capabilities of the joist as if it were the new smaller size? That is, if you notched a 2x6 by 2", it would now have the spanning of a 2x4?

It's hard for me to visualize what you're doing without pictures, but couldn't you attach a ledger to the beam without notching the joists and have the joists sit on that?

if the notch is in the middle of the pan, yes it can greatly effect the strength, but on the ends not so much.

[mineengineer]

Answer about halfway down page

http://images.google.com/imgres?imgu...a%3DN%26um%3D1

[JR]

I don't have an answer for the question. I just thought I'd chime in because it has been insufficiently discussed that YOU SUCK for having that cool shop.

You can go back to your regular programming now.

JR

[crokett]

Thanks for the link. The joists are 5.5" actual so at 1/4" depth, that works out to about 1.4" maybe a little under. .75" is just under half that so they should be ok with no ledger.