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Will it fit?

A headroom and floor check for a UK bunk, cabin, mid sleeper or high sleeper. Indicative only. Always check the maker’s dimensions, age mark and mattress limit.

By the Bunk Bed Guide team · Updated 13 November 2026

A widely published UK retailer guideline (Boori’s shorty-bunk guide, checked 13 November 2026): at least 75 cm from the top of the mattress to the ceiling so a child can sit up. It is not a legal minimum.

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What the result is not

It does not say a bed meets BS EN 747. It does not know your child. The 75 cm headroom target is the retailer guideline named above. Floor allowances are for a plain frame until you type the maker’s own length, width and ladder projection.