You don't build ceilings.
You can not build boats in the sims 3
Yes, you can build your house in The Sims 3. However, building a house in The Sims 3 requires a certain amount of skill, especially for houses with multiple floors.
Unfortunately, you can't actually build stairs/upstairs for the sims on ps2 :'( get the sims 3 or the sims 2 (computer version(s)) to do this. Both work on pc, but only sims 3 works on mac :)
Unfortunately you can not.
Uh...build one?
To find, buy, or build objects from the Sims 3 Exchange, try using cheats.
Elevators are included in the Sims 3 Late Night expansion pack and can be bought in Build Mode.
No, both games are life simulation games.
You can build more rooms in your house and a building depending on your job.
yes, they can be found in the build/buy menu
yes
try build and buy and go to build get the roof move it