Baby and toddler sharing a room: layouts that actually fit
Short answer: a crib (about 54" × 30") and a toddler bed (about 52" × 28") take roughly 21 sq ft together, so they fit a 10x10 on opposite walls with about 5 feet between them. Swap the toddler bed for a twin bed (about 41" × 80" with the frame) and you need about a 10x11, or an 11x12 to keep a dresser and real walkways. Tight on space? A mini crib buys back about 14" of wall.
Three shared-room layouts, drawn to scale
1. Crib + toddler bed in a 10x10
Each bed gets its own wall. 62" between them leaves room to walk, kneel at the toddler bed for stories, and reach the crib rail.
A toddler bed uses the same mattress as a crib, so it's about the same footprint. Putting them on opposite walls keeps the crib out of your toddler's reach from their bed, and leaves the middle of the room clear for night feeds.
2. Crib + twin bed in an 11x12
The twin bed runs along the long wall, the crib sits in the opposite corner, and the dresser has 32" at the foot of the bed.
A twin bed is the big space-eater: almost 7 feet long once it has a frame. Run it along your longest wall and keep the crib on a different wall. In a 10x11 this still works, but the dresser gets squeezed; 11x12 is where it feels easy.
Put the crib and the big-kid bed in your own room in 3D and see if there's space to walk between them.
A mini crib (about 40" × 26") and a toddler bed on opposite walls, with a small dresser on the side wall.
In a small second bedroom, a mini crib is often what makes room-sharing work. Check its weight and height limits, since babies outgrow minis sooner. See full-size vs mini crib sizes.
How much room two kids' beds need
Beds
Floor they take
Smallest room
Crib + toddler bed
54×30 + 52×28 ≈ 21 sq ft
9x10 tight, 10x10 comfortable
Mini crib + toddler bed
40×26 + 52×28 ≈ 17 sq ft
9x9 tight, 9x10 comfortable
Crib + twin bed
54×30 + 41×80 ≈ 34 sq ft
10x11 tight, 11x12 comfortable
Mini crib + twin bed
40×26 + 41×80 ≈ 30 sq ft
10x10 tight, 10x11 comfortable
Based on a 54" × 30" crib, 40" × 26" mini crib, 52" × 28" toddler bed (Delta Children's wood toddler beds list 28" × 52"; some run up to about 30" × 56") and a twin frame of about 41" × 80". Add a 30" walkway and your dresser on top.
Safety tips for a shared room
Keep the crib bare. Toddlers love to "share" pillows, blankets and stuffed animals. Put the crib where they can't easily toss things in, and check it at bedtime. The AAP's safe-sleep advice is nothing soft in the crib.
Anchor the dresser and bookshelves to the wall. A climbing toddler is exactly who tip-over rules are written for (CPSC's Anchor It campaign).
Keep both beds away from windows and blind cords, and out of the door's swing. Our door and window guide has the rules.
Know when the crib is outgrown. CPSC says a child has outgrown a full-size crib at 35" tall, or sooner if they can climb out. That's usually when the toddler bed comes in.
Different bedtimes? Put the younger one down first, and give the older one a "quiet" path from the door to their bed that doesn't pass the crib. A layout where the toddler bed is closest to the door makes this easy.
Yes. On opposite walls, a 30" deep crib and a 28" deep toddler bed leave about 62" of floor between them, with room for a small dresser on a side wall.
How big does a room need to be for a crib and a twin bed?
About 10x11 at the tightest, and 11x12 to fit a full dresser with comfortable walkways. A twin bed with its frame is roughly 41" × 80".
When can a baby share a room with a toddler?
Many families move the baby in once they're sleeping longer stretches. The AAP recommends babies sleep in their parents' room for at least the first 6 months, so most sibling room-sharing starts after that.
Should the crib or the toddler bed be closer to the door?
Usually the toddler bed. The older child can get in and out without passing the crib, and the crib stays in the quieter corner.