Is this possible

My wife and I are renovating our upstairs which includes adding a bathroom. We will have the floor in the area completely ripped up. I am pretty handy with construction and electrical but I am not a plumber.

I have concerns about the toilet. I can bring the drain/waste pipe straight up from the bathroom below it but unfortunately my wife doesn't like that location she would like it moved about 10' over.

How can I accomplish this?
It is going to go against the floor joists, so how can I get around them?
Are there restrictions on the piping? i.e. can I use 90degree corners.
Can the pipes be laid flat i.e. no incline? For some reason I have this idea in my head that you can't run toilet pipes level.

Advice would be appreciated.

Thanks in advance.

Toilet pipes almost level, 1/8" per ft. I think the best advice based on some of your questions is you might want a plumber involved, there's quite a bit involved from connecting at the proper place to venting correctly with a lot in between.

drains are sloped at 1/4 inch per foot. If you don't have enough grade then you can run 4" at 1/8 per foot. 10'= 21/2 inches of slope. How big are the floor joists?

Helpful Plumbing Hints for Residential Construction by Bert Polk Plumbing Inspector Lincoln County

You sure don't want to put 90's in a toilet drain. You definitely need to have a plumber on this one. You can't just run pipes around like you can electrical wire and expect things to work right much less be up to code. Not only do you have drain line considerations, you have venting and structural concerns to worry about. What you are embarking on is a very big job for a DIYer with many, many pitfalls along the way.

winslow said:

drains are sloped at 1/4 inch per foot. If you don't have enough grade then you can run 4" at 1/8 per foot. 10'= 21/2 inches of slope. How big are the floor joists?

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That's not right. Drains are sloped based on their pipe size and sometimes the way they are vented.
Typically up to 2" is 1/4" per foot 3" and up is 1/8" per foot. Oversloping which usually won't happen until you try to go 1/2" per foot or more will lead to problems.

To throw another wrench in, the vent from below can't be used as a drain on your new bathroom unless you re-do the vents for them. So, to do this right, you will likely need to tear up some downstairs to connect your drains below the vents of those below. You can tie into the vents from below with those required for the new work IF the size is sufficient. Otherwise, you may need a new penetration through the roof for the new bathroom.

You may need to build a chase along the ceiling to hide the drain line if you can't find a path to get it down or across where you want it inside of the walls or floor.

toilet

Your first paragraph says it all, "I am not a plumber". Have you bought into the Home Depot theory that "Any one can do plumbing. All you need is the proper parts and some advice from our aisle plumbers"?Every plumber would have his own idea as to how to do it, but would have to see your installation first.