My group's Necromunda terrain is falling apart, bless it. I guess thin card wasn't meant to hold the metal miniatures.
So, I created these templates for some modular Necromunda (or any other sci-fi game) scenery. I made these with foamboard in mind, but they could probably work with other materials. The spots on it for magnets are completely optional, but the intent is for scenery to be connectable via walkways, and if a walkway isn't in use, a railing to provide cover. Examples at the bottom of the post!
Small Tower
This is a 1 story tower, self contained in the image.
Medium Tower
As above, but 2 story. Please note you'll need two of the legs.
Large Tower (pillar and top)
As above, but 3 story. You'll only need one of these.
Large Tower (legs)
legs for the large tower, you'll need 2 for each side of the pillar.
Pillars and Railings
These are to work with the Triangle and Square tiles, with the pillars letting you make up to 3 stories, and the railings providing cover if you place a magnet on the bottom. The pillar heights should be three inches each.
Triangle Tile
This is to make triangular buildings with the pillars above
Square Tile
This is to make square buildings with the pillars above
Walkway
This is to link buildings and towers together
Sludge River
Haven't tried this yet, but this is to make ooze or similar river sections