[header] How to turn a crib into a toddler bed [title] Choose an appropriate guardrail. [step] Unless your child's crib came with its own toddler bed rail, you'll need to purchase a separate rail. [substeps] Toddler bed rails are lower and shorter than the sides of a crib. 
Your toddler should be able to get in and out of bed without assistance, but the rail should prevent your toddler from accidentally rolling out of bed in his or her sleep. Typically, your best option will be a universal toddler guardrail kit.