A trundle bed, not unlike a murphy bed, is meant to save space. The murphy bed is stored in the wall while a trundle bed is essentially two beds in one with the second bed sliding under the first. Over time the trundle bed can become loose and will start to wobble. The following article will show you how to fix a wobbling trundle bed.
Step 1 - Access the Hardware
In order to stop a trundle bed from wobbling you need to locate the hardware and the screws. Remove all of the bedding followed by the mattress. This will expose all of the brackets.
Step 2 - Bolts
Find the bolts that hold the trundle bed together. Use the Allen wrench or the hex key to begin tightening all of the bolts holding the frame together. You will need to turn them to the right. Tighten all of these bolts until all are tightened.
Step 3 - Screws
A trundle bed, in addition to bolts, will also use wood screws. Find all of the wood screws in the frame and use the screwdriver to tighten them by turning them to the right. Replace any stripped wood screws.