Pass-Through Elevator

The elevator is 2W x 2L x 3H and the whole construct is 8W x 12L x 27H. There are two floors with a distance of seven blocks. It is of a pass-through design so it can be in the middle of a room and/or daisy-chained near multiple copies. Either side of each floor has a call button and an up or down button. The buttons are timed so the first piston doesn't trigger until after the button depresses, providing plenty of time to board the elevator.

It's color-coded for easy customization: Glowstone are floor and ceiling of elevator, Light Blue Wool are floors, Cyan Wool are aesthetic walls and ceilings, Red Wool power pistons, Yellow Wool path buttons to beginning of piston chain, and Black Wool block undesirable redstone circuitry.

I spent a lot of time tweaking blocks to fit all the buttons within my space constraints. My goal was to make it as compact as possible so it would fit well in the middle of a circular room.

Additional Notes

use of SinglePlayerCommands
texture pack: DokuCraft_2.5_Light