Connect the drawer guides to the bottom of the head and foot boards using two plastic washers and screws. Use the wrench supplied to tighten every screw.
Attach the stabilizer bars to the headboard using two more plastic washers, screws and the provided wrench. Repeat this process on the footboard. You should have the sides of the crib's frame assembled at this point.
Place the dust cover over the stabilizer bars.
Place the spring frame onto the dust cover and attach it to the side of the crib with four screws and nuts. Make sure you are inserting the screws on the outside of the crib and the nuts on the inside. Tighten everything with the wrench.
Mount the upper arm of the spring frame on the inside of the frame using four screws and four nuts. Three different height levels are available, so you can decide the height of the screws. The mattress will eventually sit on top of this frame.
Hold the front rail against the front of the crib and insert four screws through the holes. Tighten with the wrench. Repeat the same step for the back railing.