Sledgehammer

A sledgehammer is a weapon and a demolition tool, which can come in very handy.

Combat
The sledgehammer is mostly a one-hit weapon, and can be a decent weapon, but its weight may not be ideal for scavenging missions. A sledgehammer is best used as a defense weapon as its weight can limit your ability to bring items back and forth.

Demolition
This is the true purpose of the sledgehammer: removing walls from structures, although it takes some time, it will be worth it if you ever place a wall piece at the wrong place, or if you need to break out of the house without using a door.