Keep on Building

Floor After Floor is a song from the episode "The Doof Side of the Moon" while the boys, Irving, and Isabella build the biggest building in the world.

Lyrics
Stacking steel, laying bricks,

Pounding nails, and moving up quick.

2 by 4's and RSJs,

Concrete blocks and bales of hay.

(chorus repeats throughout song)

Floor after floor after ceiling,

Carry it along.

All of our work is in order,

It's all up to code.

Floor after floor

Yeah, we know what's in store

Now, let 'em floor, let 'em floor, let 'em floor!

Floor after floor,

Yeah, we know what's in store

Now, let 'em floor, let 'em floor, let 'em floor!

Floor after floor

Yeah, we know what's in store

Now, let 'em floor, let 'em floor, let 'em floor!

Floor after floor

Yeah, we know what's in store

Now, let 'em floor, let 'em floor, let 'em floor!

Floor after floor after floor!

Continuity
It is possible that the catapults used were origianally for the Trojan War reenactment ("I Scream, You Scream").