An old time cupboard is a separate closet with shelves that keep dishes, utensils and foods for storage. More recently a kitchen cupboard is just another name for a kitchen cabinet. Hanging kitchen cupboards is the same procedure as hanging wall mounted kitchen cabinets. Plate racks come in many different styles and shapes. Often sandwiched between two wall cabinets or attached underneath a cabinet or cupboard, cupboards and plate racks are held in place by long wood screws secured through the cabinet or rack backing and into the wall studs. Heavy cupboards also need screws into the adjoining cabinets on the sides.
Measure and mark the desired placement of the cupboard or plate rack. Locate the wall studs in that area. Use a hammer and nail to test that the stud location is solid. Mark the cupboard on the back where it aligns with the stud locations. Transfer these marks to the inside back of the cupboard or plate rack.
Drill holes in the back of the cupboard or plate rack at the stud locations. Use a drill bit that is the same size as the screws that will be used. Drill the holes from inside the cupboard to allow splintering around the holes to be on the back side of the cabinet or rack.
Hold the cupboard or plate rack firmly against the wall in the desired location. Use the drill to place screws into the back of the cabinet or rack, extending them through the back piece and into the wall studs. Drill holes and insert screws on the sides if available mounting areas exist.
Mount plate racks underneath cupboards in the same manner. Use screws that do not penetrate through he bottom of the cupboard above. Add additional flooring structure underneath the cupboard if necessary.
Check the wall for uneven areas and out-of-level conditions. Compensate for these with wood shims or molding as necessary. Cupboards should be level in all directions after installation is complete. Assure the screws in the back are positioned into structural members of the cupboard or plate rack backing. Use proper length screws to avoid piercing through the bottom or sides of adjoining cabinets. Check the manufacturer's specifications to assure the number of screws used and their size is large enough to hold the weight of the filled cupboard or plate rack.
Always wear proper safety equipment while using hand tools. Falling cabinets can cause serious injury.