[mhoyle]

thanks mrsteve, i so appreciate how quick you replied.

it's kinda what i wanted but i should have been clearer:

i've attached an overhead view i made in photoshop. so it's a street corner and you know how you've got a little dip in the corner on both cross sections for bikes etc...

i kind of whited out the area i was going to make dipping down.

though i'm still trying to even get that square with a corner. thanks in advance for any guidance. i so want to understand how to get two shapes and join them.

thanks!