Overspanned Built-Up Floor Beam!

[Under_Miner]

This RTM house was just moved in. Apparently there was some miscomunication between the basment builder and the home builder as to how many posts were needed in the basement.

The contractor more than happy to put the post in.

The span shown there is fifteen feet. The max span of the built-up beam is 10 feet!

[scuba_dave]

Isn't that a steel beam?
Why can't it span more then 10'?

Or is the wooden beam beneath it going to be permanent?
Just curious on the setup, as I have a 36' long garage & I will need a steel beam down the center to support the great room above
I was hoping to span 20' with the right beam

[mdshunk]

I don't get it. Isn't that wood member just a shim on top of those lally columns? It looks like the steel is carrying the load.

[K2eoj]

I think the steel beam is the movers beam. I don't get the rest.

[scuba_dave]

Ah, RTM - Ready to move

So I guess the steel beam come sout & it will be supported by the wood
I was thinking that is one large steel beam

[Phil H]

I am glad that I am the only one who doesn't get it. I thought the steel beam is the movers. The two colums at 15' are temporary. And, the column to the right is the only permanent column that has been installed thus far. It just looks like work in progress. I don't see the 'built-up beam' either.

[Under_Miner]

It is a built up 2X10 wood floor beam. And yes, the steel beams you see are the mover's beams underneath the home. The supporting steel collumns are permanent, you can see the concrete pad where the third post is supposed to go.

Here are more pics. Hope it clarifies the situation.:oops:

[scuba_dave]

That makes sense
The original picture mad eit look like the beam was under the steel beam
It'd be nice if one of those steel beams fell off the truck & into place for my garage :)

[K2eoj]

That doesn't look too serious.
It looks like they need another pocket to drop that house down. If they only have top and bottom horizontal bars on the foundation I would want and engineers repair on any cutout. I've had experience with loosing the top bar.

[RobertLangDirect]

Sorry to ask, but as my house has a steel I-bean down the center, why not use steel here?

Robert Lang

[Under_Miner]

That doesn't look too serious.
It looks like they need another pocket to drop that house down. If they only have top and bottom horizontal bars on the foundation I would want and engineers repair on any cutout. I've had experience with loosing the top bar.

Again, those two huge steel beams belong to the home movers, that "pocket" is a basement window.:rolleyes:

[Under_Miner]

Sorry to ask, but as my house has a steel I-bean down the center, why not use steel here?

Robert Lang

My guess is to save money. On the side with the steel beam is a rumpus room. The side under the wood beam are two bedrooms, bathroom and a mechanical/storage room. So the larger span is not necessary.

[K2eoj]

Again, those two huge steel beams belong to the home movers, that "pocket" is a basement window.:rolleyes:

The movers i've worked with need pockets to retrieve their beams. There is probably more than one way to do it.

[Under_Miner]

The movers i've worked with need pockets to retrieve their beams. There is probably more than one way to do it.

Indeed, it's quite a process.

They jack the house from inside using 6-8 hydraulic jacks then pull the beams out from the ends one at a time, then lower the house one side at a time. All after ensuring, using a level, that the corners are exactly in line.