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 (and tallest) building in the world to act as a tourist attraction for Danville. It shows the most detailed viewing of Phineas and Ferb building something and their imaginative ways of "spicing up' a building.

Lyrics
(Lyrics in italics are in demo)

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)

Keep on building

Up to the sky

Keep on building

Birds flying by

(you can faintly hear it in the releice version)

Floor after floor after ceiling,

Carry the load

All of our permits in order

It's all up to code

Floor after floor

Now we know what's in store

Another floor, then a floor, then a floor!

Floor after floor

Now we know what's in store

Another floor, then a floor, then a floor!

Floor after floor

Now we know what's in store

Another floor, then a floor, then a floor!

Floor after floor

Now we know what's in store

Another floor, then a floor, then a floor!

Floor after floor

Now we know what's in store

Another floor, then a floor, then a floor!

Floor after floor

Now we know what's in store

Another floor, then a floor, then a floor!

Floor after floor

Now we know what's in store

Another floor, then a floor, then a floor!

Floor after floor after floor!

Background information

 * The blimp shown is the exact same one used in the episode "I Was a Middle Aged Robot", but without "Go Candace!" written on it.
 * This is the second time a character, in this case Isabella, uses giant hands (The Chronicles of Meap).
 * An "RSJ" is a reinforced steel joint.
 * The statue that appears as part of the construction resembles a more modestly-dressed version of Sandro Botticelli's painting The Birth of Venus.thumb|300px|right|Floor After Floor with the missing lyrics

Songwriters

 * Martin Olson
 * Jeff "Swampy" Marsh
 * Dan Povenmire
 * Jon Colton Barry

Continuity
It's possible that the catapults used by Irving were originally for the Trojan War re-enactment ("I Scream, You Scream").
 * Once again, giant instructions are seen ("The Ballad of Badbeard").