Motor parts: 1  back plate, center pole, front plate â these three parts are usually made of iron or a similar permeable material to form the magnet circuit with the magnet. The front plate and pole piece form the gap of the magnet circuit.
The cost to install drywall is about $1.50 per square foot. After material and labor are added in, the cost per panel can range from around $40.00 to $60.00. A typical 12x12 room, for example, will use 12 panels.
1 Installing new drywall on the walls and ceiling of a 12x12-foot-room with 8-foot-high walls means about 530 square feet of drywall. 2  For about 4,000 square feet of drywall on all the walls and ceilings of a small home, it's $4,400-$8,600 or more.