Most people install a Murphy bed against a wall. If you have access to a wall that is deep enough and strong enough for you to excavate an opening that is big enough and deep enough to install a Murphy bed you will need professional help and instruction.
A Murphy bed does not take up a lot of space when it is closed. When it is open a Murphy bed takes up at least as much room as a normal bed. Choose a location where the bed will not create a hazard, and as little as possible has to be moved to open it.
Build the Cabinet.
Most wall beds come with their own cabinet shell. The instructions to build this shell will be enclosed with the bed and should be read carefully. This cabinet needs to be assembled according to the instructions.
Fix the Cabinet to the Wall
Fix the cabinet to the wall using ‘L’ brackets. These brackets are screwed to the wall above the cabinet so that the horizontal leg is lying on the cabinet. When they are secured to the wall make sure the cabinet shell is in the right place and then screw the horizontal leg of the bracket to the cabinet. These brackets can not be seen so they don’t need to be neat, just secured properly.
Prepare the Bed
Read the instructions for assembling the Murphy bed and get it ready for installation.
Install the Cradle
The Murphy bed is supported by a cradle that has to be screwed to the floor inside the cabinet shell. Using the instructions that came with the Murphy bed kit, position the cradle correctly inside the cabinet. Carefully mark the position of the screw holes necessary to fix the cradle to the floor. Remove the cradle and drill the correct sized hole for the screws. Insert wall plugs and screw the cradle to the floor. It is the cradle that supports the whole weight of the bed so it must be properly secured.
Fit the Bed to the Cradle
The bed fits the cradle by means of two roll bars or bearings that fit into a prepared socket on the two support arms of the cradle. The bed will rotate around the roll bars and gravity will prevent it from coming loose so there is no need to secure it.
Fit the Counter Springs
At the bottom of the bed and at the top of the cradle are a matched set of holes. These are for mounting springs that will act as counterweights to the bed when it is being raised and lowered. The springs need to be fitted and the only way to do it is brute force. Use a long strong screwdriver or a pinch bar to lever the springs into position. Take great care because the springs are very powerful.
The bed is now fully installed and can be finished off with the mattress retainers and moving supports for the foot of the bed.