A thin staircase

[DJ Full]

Hi everyone.

Remember Red Alert from TR5? There's a thin, metallic staircase in a place where that guy with a laser falls down. I know that I can just make a normal ramp textured only from above, but then:
1. the transparency will make a look of a non-existing floor at the bottom of the ramp.
2. I won't be able to get under the stairs (and I think in Red Alert that was possible.

I don't know how to make such a thin (and solid) construction.
Help me

[God Horus]

For thin stairs, you need to use the bridge objects. Try downloading the TR5 VCI Red Alert wad from somewhere and see if you can get the bridge objects from it. Remember, you must add a dummy trigger for the bridge objects underneath it (or in the lowest stacked room)