Are there legs; if so, they should unscrew.

I have done this for friends, but I live in Boston. Most commercial furniture is NOT built to be disassembled, so you have to find a person who is not afraid to break and then rebuild. Find a handyman with upholstery experience (Craigslist might help). Most likely, they would need to take off some upholstery, break a couple connection points, reattach once in the room, and fix the upholstery.

That said, have you tried the window? Sometimes the window diagonal is greater than the door.

Have you taken the door off the hinges?

Or the trim off of the door?

We lucked out by taking the legs off of our couch and turning it every which way.

DO NOT TAKE THE SOFA APART. You will compromise it's stability.

When I talked to the Crate and Barrel here in Boston about purchasing the Oasis sofa (I was concerned we would run into the problem you are having), they recommended a professional furniture reupholstery/restoration company that could pick up the sofa from their warehouse, disassemble it, deliver it to our house, and reassemble it inside. It was going to cost between $200-$300, I believe.

I would imagine there should be similar companies in SF that could do the same. Crate and Barrel sofas are not meant to come apart, so I would definitely recommend hiring a professional.

If it's in white, imagine what it will look like in a few weeks IF it were in a game room; chips, pizza, pop, beer, feet, etc. Use it in wherever it is now.

I agree with the aggregate of suggestions: Remove the door and trim and/or try the window, and if that doesn't work to make enough room to go thru, give up and use the sofa somewhere else. Dismantling furniture to fit it IN means you'd have to do the same to take it OUT, so unless you plan to stay forever, that's an inevitability. That much abuse will probably destroy a perfectly nice sofa.

And now for an actual answer: http://servicefurniture.com/take_apart.php

According to their site they service SF. Good luck!

Easy Solution: measuring tape.

A friend of mine actually widened his doorway to get his couch into his media room. I think he finished it off and left it wide (no door) but if you're handy or got a contractor, you could widen the doorway, move the couch in, then have the wall and doorway repaired. Of course you'd never be able to get it back out unless you repeated the process.

It might be easier and cheaper to make the doorway wide. Call a carpentar or drywaller.

Then you can get it in and out without a problem.

I had the same issue. We could get our sofa into an adjacent room, but not our living room. We had someone come in to cut a hole in the wall, put the sofa through it and then fix the wall (luckily, we'd just moved in and had white walls). It was the most extreme option imaginable, obviously, but the only one that would work.

No matter what you do, hire a professional with experience.

YES: OnSite Furniture Assembly. they do GREAT work! http://www.yelp.com/biz/onsite-furniture-assembly-san-francisco-3

Reminds me of one of my favorite Friends episodes ever...Pivot! Pivot! Pivot!

I live in SF too and I feel your pain - the narrow doorways and hallways here are hard to work around.