For high and low beds, standards specify:

       1. Bed surface length 190cm~202cm, width 80cm~152cm;

       2. Bottom bed surface height ≤45cm, clearance between layers ≥98cm.

       3. Safety railing height ≥30cm, safety railing gap length ≤60cm.

       From the above requirements, it can be seen that the standards consider the actual usage needs of high and low beds, as well as convenience and safety, but only provide a range of values. Specific dimension specifications need to be determined based on usage scenarios, manufacturer standards, etc.
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