Now that the table structure is solid, with the table on it's legs, we'll attach the caster boards. These two pieces of stock will hold the casters, and can be raised or lowered to allow the woodworker to move the table.
Cut a 2x4 into two lengths of 43-1/2 inches. These will be the two green pieces displayed in the image above.
Attach two 3-inch (non-spring) hinges, each three inches in from the end of one of the caster boards. Repeat on the other caster board.
Attach the other half of the hinges of the green caster boards to the short stringers as shown in the detail above. There should be a 1/4-inch gap between the end of the caster board and the table leg, and the bottom of the caster board should be flush with the bottom of the stringer (not shown).
Once the caster boards are securely attached using the hinges, the caster board should freely move in a 90-degree arc, and sit flat (horizontal) when in the down position, two inches above the floor.


