Remove the bolts on the top and bottom sides of the front rail using an Allen wrench. Unscrew other barrel nuts and screws supporting the front rail. Remove the front rail from the crib, and store in a safe location. Save all the remaining barrel nuts, screws and bolts for future use.
Locate the mattress support bolts on each corner of the crib. Remove the bolts connecting the mattress support to the crib using an Allen wrench. Store the mattress support and bolts in a safe place.
Remove the bolts supporting the side rails of the crib using an Allen wrench. The bolts are usually located on the top and bottom of each side rail. Store the side rails and bolts.
Secure the bed rail to the crib back rail, which becomes the bed's headboard, with bolts. If your crib includes adapter plates, install them on the bottom legs of the head board with the bolts provided with the adapter plates.