All partitions should be built of tile or plaster board with a painted surface that can be cleaned at intervals. Tongue and groove partitions cannot be relied upon for air-tight compartments. Doors should be well built and be shut tight to exclude dust from other parts of the establishment.
The size of the finishing room depends entirely on the space required to handle the output of the cabinet room without crowding. Sometimes an entire floor, or even more, is given over to finishing alone. This can be done easily where the work is all finished in lacquer, but in case of varnish finishing, the room should be divided up into several rooms of different sizes and designated according to use as staining room, sanding room, filling room, flowing room, and drying room.
Cabinets should be constructed in the finishing room to hold materials to avoid waste and loss. Brushes are expensive and should be kept in a container for this purpose in the finishing room cabinet and in a "brush-keep," which can be easily made from japan dryer and thin shellac, or thin varnish. The finishing room and all cabinets should be fireproof. The same should hold for partitions and doors. Metal waste cans with tight covers should be provided for disposal of waste material.
SPRAYING EQUIPMENT
This equipment is made up of different parts made by different factories and assembled into a complete equipment. One concern will make a specialty of manufacturing the spray gun, another the compressor tank, another the motor, another the air storage tank, another the air scrubber, etc.