Question: how do you turn a 4 in 1 crib into a toddler bed?
Answer: Unscrew the four bolts that hold the stationary side of the crib in place.
Remove the stationary side.
Move the crib's spring frame to the lowest level, if it isn't there already. ... 
Mount the guardrail to the front panel of the crib. ... 
Attach the guardrail using the bolts provided for this purpose.