I decided to roll my own. I swiped the wall and door texture from the minichunk stuff, and the build design from the hinterland cliffs. Each wall sheet gives me 30" of linear wall, and the top and bottom sheets are 6" x 6", 1" grid squares. I'm using the Dundjinni product to quickly produce room layouts, and various foldups as props and terrain. The shapes I built are for the Kobold Hall adventure, but it's extremely easy and fast to build them with this.

Very simple yet effective kit-bash! Well done. Would like to see what you come up with for CWU if you decide to do it. One question though. How do you size the floors? Blank template?

CONTAINS SPOILERS FOR KOBOLD HALL

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Here's some pictures to make it clearer. I can generate the room layout in just a couple minutes in Dundjinni, and if I want to go all out and burn the ink, I can fill in the floor with texture, whatever. Neat program, it goes really well with the WWG foldups. The black border is the room outline - those walls are assumed to go up to the ceiling, which in this case is 20'. I'm not making walls for those (at least for now, you never know...) because I think it's easier to move the figures around without those walls in the way.

Each of the sections I'm building are 10' high, I will most likely create a sheet of 1"/5' high walls at some point as well. Basically, raised terrain that has to be scaled or broken down in the case of a door. The kobolds in the room use the terrain to their advantage - for example, there are a pair of kobold slingers in the center section who will climb on top of the wall and attack from there. The boulder will fall off the platform and roll around the center section in the chamber, crushing the hapless PCs mercilessly.

I use a house rule (my only one for 4e at this point) that gives you a +1 to hit when you have the high ground - basically you're at a higher elevation than your target. Doesn't provide any other bonuses (ie. specifically does not give combat advantage.)

These pictures are for Kobold Hall room #4.

Nicely done, Relbanan!

Great idea on the modular wall sections!

BTW, the reasoning for the 3/4" wide walls was to accommodate larger miniatures, especially since there's so many with wild poses, flailing weapons, billowing cloaks, etc.