"No, cement will be too heavy"

just stacked 70 metal boxcars on wooden stilts

I can hear Nick Valentine say, "more stairs, who built this? A fitness instructor?

A small suggestion: alternate your stairs from side to side, using both sides of the square between the boxcars. So you walk up the first stair, make a complete 180 turn and the stair to the next floor is right there. It would mean less open spaces for people to fall out of, and your settlers wouldn't need to go all the way around the floor to reach the next set of stairs,

Instead of
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Go with
\
/
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/

STAIRS. OXHORN. STAIRS. THEY ARE STAIRS.

"...and at the top floor of this beautiful boxcar tower home, you can open these doors and have your choice of a gorgeous view or gruesome suicide.  Perfect for all your post-apocalyptic needs."

Any viable way to build a deck or something?  lol

boxhorn

"Who built this vault? A fitness instructor?" (c) :D

Oxhorn, health and safety want a word with you ^_^

I love this idea, very creative.

Boxcar beds are considered unsheltered giving you a penalty. I verified this using console commands. I built a nice boxcar shelter my happiness dropped significantly. I had to put a roof over the boxcar to fix this.

Boxcars are great for building quick housing. I never thought to turn them into a skyscraper lol

Nice idea however i would make the stair structure going up the middle so you could use the end boxcars as little apartments like Chinese apartment buildings

B O X C A R
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I
S

Metal prefab pieces pair really well with box car pieces.

In the orange tower, why not put half floors directly next to the stairs/ramps/ladders? That way, you wouldn't need to run all the way through the length of the tower and back to get to the stairs for the next level!
And in the blue tower, why not do the same, and then use the elevator INSTEAD of the large floor pieces between the two corridors?
Also, there should be walls around the stairwell as well. Otherwise, raiders will shoot any settlers moving through the stairwell.

Still cool builds, though!

I love using the rail cars for settlements. Especially on the railroad Playthrough.

Would love to see this decorated and "Lived in"
Abernathy farm does have the tallest limit (about 20 stories, I think) I built a towerblock there with the top floors as a display area for my armour, weapons etc and using the institute pieces (homemaker mod), I built myself a luxury apartment on the very top, with an open patio/dining area

Great idea! I will build one tonight with a little balcony on the top level as befits the Penthouse suite.

I still find it hilarious that you can craft an entire train boxcar from eight tin cans and four pencils. That's less than half a pound of material.

This gave me a lot of inspiration to make a settlement entirely out of boxcars and buses.