How To Layout House for Framing
Pick a corner of your house and lay out everything from that corner. It can be the left or right corner. Mind you, if you use engineered floor joist, have a peek at the layout and match your starting point with the joist lay out.
Start your layout with marking out all the partition walls. Next layout all the windows and doors in your wall. If you have any bearing points in your wall section, mark those out on your plates next.
When you are finished marking out the previous items it is time to layout the wall for the stud locations. Whenever one of the studs ends up or almost ends up on one of your previous marked items you can omit this stud. And if the stud location is under a window then change your x to a j for jack.
Start your stud layout from the corner you picked and mark the first stud at 15 1/4" on the wall plates and proceed from there on at 16" centers with your layout. (Start first stud at 23 1/4" for 24" O.C. wall framing.)
Do the same for the side wall starting at the same corner. Continue the layout from these studs all through the house. When you are finished with the first floor all the studs should line up.
Start your floor joist layout from the same location. With the floor joist layout you will have to make sure that the joist are not located under toilet, tub or shower drains. Joist that are in the way of those items should be moved as much as needed. It never fails that at least one of your joist is right in the middle of a toilet drain. Usually a few inches will make a difference.
Start the layout for the studs on the second floor from exactly the same location as the first floor. Everything should always line up. This is not only good practice, but will make life much easier for the plumbing and the heating.
After you are all done it will look something like the above. Of course there is a bit more to laying out a building for framing but this makes a good start.
If you don't start your layout from the same point for exterior and interior walls, unless you are lucky, you could end up with something like this, creating all kinds of problems for heating ducts and plumbing stacks to run through the walls plus it looks like crap.
Of course there is a bit more to laying out a building for framing but starting your layouts from one point throughout the house for all walls, joist and trusses not only makes sense, it will also end up less messy after everything is said an done.