Minecraft: Simple Cheap Iron Farm! [1.11.2]

Can we get 100 likes for this cheap, simple Iron Farm! If I have missed anything in this video or you have any questions regarding this farm, please comment down below! This farm does work in 1.11 and 1.11.2, this farm requires nothing but solid blocks, water, doors, glass and villagers. If you're looking for a way to transport villagers, I have made a video on a mob elevator in the past. https://www.youtube.com/watch?v=judHyZj-bLY Likes and comments are always appreciated!