Baseboard mouding – this is the most common moulding and is installed at the bottom of the wall at the floor to cover up the transition. The typically baseboard moulding is 2-6 inches tall.
Casing – casing is used to fill in the space between a door and a wall or a window and a wall. Casings are typically 1-4 inches.
Crown moulding – crown moulding is used to fill the space between the wall and ceiling. Crown moulding was used in older homes and gives them a lot of character missing in newer homes. Most homes that use crown mouldings go with 4-5 inches in size.
Chair railing moulding
Chair railing moulding – this type of moulding is used to protect the walls from chairs bumping but is mainly used for décor. It typically runs at least 30 inches high from the base of the floor.