Simple Door-Lock




 * Building name: Simple Lock System


 * Purpose: Switching the door 'off'.


 * Dimensions: 4 * 4 * 2 (barebones)


 * Materials used:


 * 4+ blocks of any attachable type
 * 4+ Redstone Dust
 * 3+ Redstone Torches
 * 1 Lever
 * 1-2 Button*

''* If you don't need to be able to open the door from the inside, one button suffices. Otherwise, you will need two.''