cheetah---George's post above is right on with info about sectional track. What you might want to do is visit a hobby store and take a look at the tracks that we are talking about. Then see if they have a book on basic trackwork or track plans. You will find much information in there on the kinds of track and what you can do with them.
And you will find a lot if information here on the Gauge also. Here is a photo of my yard, it is all flex track except for the turnouts. Most of the radii into the turnouts are more than 22".
Thanx alot George and David......
alot to learn.............
Now about my engine......N Scale
thinking a 'diesel' and perhaps with sound ...(I know lil more $)
but want a GOOD one....metal wheels etc...DCC capability as well.
Trying to find an Old-fashion like engine but don't know what its called
(like the one from the Ole West....Wild, Wild West even ...lol):-D