Bunk Bed Buying Guide

Bunk types compared

Bunk and loft beds come in a handful of standard configurations, and picking the right one starts with how many kids are sharing the room and how much floor space you have to work with. Browse current options in our kids' room collection once you know which layout fits.

Twin over twin

The most common configuration, sized for two children of similar age sharing a room. It has the smallest footprint of any bunk style, which makes it the easiest fit for a standard bedroom.

Twin over full

Pairs a twin top bunk with a full-size bottom bunk, giving an older child or a parent staying over more room to stretch out on the lower level while a younger sibling takes the twin on top. It needs a slightly larger footprint than twin over twin.

Loft beds

A loft bed raises a single twin mattress and leaves the space underneath open for a desk, dresser, or seating area — a strong option for a single child in a smaller room who needs the floor space more than a second sleeping spot.

Trundle options

A trundle adds a third, pull-out sleeping surface underneath the bottom bunk for sleepovers or a growing family, without adding to the bed's footprint day to day. Confirm the trundle mattress thickness fits the clearance under the frame before you buy.

Stairway vs. ladder

A ladder is the traditional, most compact way up, while a staircase unit takes more floor space but is easier and safer for a child to use consistently, and often includes built-in storage drawers in the steps. Consider a staircase model if the top bunk will be used every night by a younger child.

Ceiling height and measuring the room

Plan on roughly 8-foot ceilings as a comfortable minimum for a standard bunk bed, leaving enough headroom for a child to sit upright on top without hitting the ceiling. Measure the full room footprint, including door swing and closet clearance, the same way you would for any other piece — our measuring guide walks through the doorway and stairway checks that matter most on delivery day.

What to measure before you order

• Ceiling height at the exact spot the bunk will sit, not just the room's average
• Overall footprint of the frame, including any attached staircase or trundle pull-out
• Doorway and stairway widths the frame needs to pass through on delivery day

Mattress thickness and guardrails

Guardrail height is measured from the top of the mattress, so a mattress that's thicker than the bed manufacturer's stated limit effectively shortens the guardrail and undermines the safety margin it's designed to provide. Check the maximum mattress thickness listed for the specific bunk frame before shopping our mattress collection for twin or full sizes to pair with it.

Safety rules that matter most

Children under six should never sleep on a top bunk — this is the single most important bunk bed rule, and it applies regardless of how tall or mature a younger child seems. Look for compliance with ASTM F3096-23, the current safety standard covering bunk bed guardrails and structural requirements, and anchor the frame to a wall stud with the hardware provided.

• Never let a child under six sleep on the top bunk
• Confirm guardrails run the full length of the top mattress on both sides
• Anchor the frame to the wall and re-check hardware a couple of times a year
• Match the mattress size to the frame exactly — an undersized mattress leaves a gap a child can slip through
• Keep the ladder or staircase secure and free of clutter

Materials and construction

Bunk beds are built in solid wood, wood veneer over engineered panels, or powder-coated metal, and construction quality matters more here than on almost any other piece of bedroom furniture because of the structural load involved. Look for through-bolted or metal-bracketed joints at the stress points — where the ladder, guardrails, and bunk supports attach to the frame — rather than joints held together with cam locks alone, and check the manufacturer's weight rating for both the top and bottom bunk before you buy.

Living with a bunk bed

Fitted sheets and lightweight comforters are easier to manage on a top bunk than bulky bedding, since making the bed happens at arm's length above a ladder or staircase. Vacuum and dust the frame and guardrails along with the rest of the room, paying attention to the hardware at each joint. Many bunk frames are also convertible — separating into two standalone twin beds once kids are older or room-sharing ends — so ask about convertibility if you expect to need that flexibility down the road, and pair the finished bedroom with bedroom storage pieces sized to what's left of the floor space.