What's the difference between having framed walls assembled in the factory then delivered and erected on site compared to simply having the walls and everything else framed on site?

Seems to me there would be no savings by having it done your way, and it would actually cost more your way.

The walls however constructed would still need to be built and inspected 'to Code' for your state, and the makers of such 'modular components' would have to be approved and licensed by your state to do buisness in your state in most cases.

Can't see the rationale for your query.

Perhaps you can enlighten (us) me?

Thanks in advance.

The idea is to be faster. Two separate experienced framers I met with have no problem with panelized walls, but both said "you won't save any money". They both figured that what I save in labor, I'll add to the cost of materials. I'm not convinced, because they did not offer much lower prices if I used the panelized walls, despite agreeing that there would be a significant time savings. We plan to start to dig later this month, so we don't have a lot of time to get everything weather tight. (western pennsylvania). We're using panelized walls with a Huber zip sheathing already applied.
If you're building at a time of year or location where it doesn't help much to save 2 weeks time, then there is not as much reason to do panelized walls.
If you're building a fairly simple structure, you can get a 2-4 person crew together yourself and assemble the walls for much less than a framer would charge you. We still need a regular framer for a bonus area that must be stick framed as well as to set the trusses. I'd try to get a few experienced framers work hourly.

Manhattan42:

You can find a cost benefit analysis @ www.timbertruss.com. The idea is to save time in the field.

Fish7577:

Where are you getting your panelized walls?

Thanks,
Princeton

princeton:
Fairman's Trusses in Creekside, PA (near Indiana, Pa about 60 miles east of Pittsburgh). They've been extremely helpful. They do all the engineering work for the trusses, floor joists (TJIs) and walls/headers.
www.fairmanstrusses.com

Fishs7577 - thank you.

Does anyone else have other leads?

Princeton; I used to build these walls. It is FAR faster and cheaper than onsite. However; I can't imagine why you wouldn't go with SIP panels.

Jason:

My partner and I understand stud walls - we're not yet up to speed on SIPS. Also, we understand that there are considerations with SIPS (e.g. plumbing, electricity, HVAC) - and our subs have never dealt with SIPS.

As to the wall panels - are there any things to look out for?

Princeton

Well, we don't run plumbing in ANY type of outside wall here; so that's not an issue; and most HVAC isn't, either.

For regular wall panels; it really is all in the quality of the build, which should be higher. Everything should be straight and square (there's no reason for it not to be), no damage, and obviously they need to match the plans.

Stud walls from a factory are nothing more than onsite walls, they're just done somewhere else. They build a lot of houses here with them; everything. Walls, floors, roofs. Right off the truck and up they go. They can close in (framing), a 2800 square foot house in about two days.