Double decker bed mattress: Measuring for a perfect fit

Measuring Rail Gaps Wrong Leads to Loose Top Mattress

Two kids in one HDB bedroom is the classic Singapore space problem, and a Double Decker Bed Frame answers it by going up instead of out — two beds in a single footprint, freeing the floor for desks and play. The parts that matter aren't the finish: it's the guardrail height on the top bunk, the angle and grip of the ladder, and whether the frame is solid wood or sturdy metal rather than thin particleboard that loosens over years of climbing. Measure your ceiling too, since the top sleeper needs enough headroom to sit up without a bumped head. Built right, a double decker outlasts the years the kids actually share the room..