Carpet

Carpets are thin blocks used for decoration. They are the same thickness as pressure plates. They are useful if you want a carpeted floor without using wool blocks as the material. They have a negligible hitbox, allowing a person to walk over them without elevating $1/16$ of a block. This is similar to how pressure plates work, although you cannot fall through a carpet. Carpets can be helpful when carpeting upstairs rooms without the ceiling of the next floor down being partially made of wool.

Usage

 * Carpets must be placed on a block, and cannot be placed freely or be free-floating in the world.
 * Carpets can be pushed and pulled by pistons/sticky pistons, but will pop off if pushed onto a non-solid block, or over a hole.
 * You can craft Carpets in different colors by placing two blocks of wool of your desired color next to each other. This means that you do not need a crafting table to make them.
 * Carpets cannot be crafted with two differently colored wool blocks.
 * Carpets can break falling sand and gravel.
 * Carpets can be used as a safer alternative to decorative flooring, as wool is flammable, but interestingly, carpets are not.
 * Carpets are a more efficient alternative to flooring than full wool blocks.
 * Carpets do not prevent mobs from spawning.
 * Carpets placed above, or around, mushrooms growing naturally under trees will break the mushrooms if the mushroom is in a high light level, but will not break the carpet, leaving a floating carpet.

Trivia

 * It is possible to use them to make a more realistic table by placing them on fence posts next to each other.
 * Carpets have a bottom texture.
 * Carpets can be destroyed by fluids.
 * Carpets are not flammable.
 * When you place blocks on it, those appear a block above the carpet -- like other partial blocks, carpets "claim" the entire block.
 * Unlike Pressure Plates, carpets cover the entire square they are placed on.

Gallery
Teppich Tapis カーペット Dywan Ковёр 地毯