SUPPLYING TO B2B AND PUBLIC SECTOR SINCE 2011

Bed Spacing and Clearance for Triple Bunk Beds

A practical guide to frame footprints, mattress platforms, vertical clearance and room-planning checks.

Planning Triple Bunk Bed Spacing and Clearance

Triple bunk bed clearance must be assessed from the complete external frame rather than the mattress size alone. Buyers should check the bed footprint, distance between sleeping tiers, mattress thickness, usable headroom, ceiling features, ladder access and circulation around the installed frame. For example, the Military Triple has confirmed external dimensions of 1980 × 960 × 2080 mm and a 1900 × 900 mm mattress frame, so its external footprint is 80 mm longer and 60 mm wider than the mattress platform.

Measure the Bed, Mattress and Room Separately

External frame dimensions establish the physical footprint, while mattress-platform dimensions establish mattress compatibility. Neither measurement alone confirms safe access, sufficient headroom or suitability for the proposed room.

IMPORTANT

External Dimensions Are Not Mattress Dimensions

The Military Triple measures 1980 × 960 mm externally but uses a 1900 × 900 mm mattress frame. This creates a verified overall difference of 80 mm in length and 60 mm in width. Do not assume the difference is distributed equally around the mattress unless the current technical drawing confirms the exact component positions.
Details table
Planning measurementWhat to recordWhy it matters
External footprint.Record the complete frame length and width, including posts, ends and fixed projections.The mattress size is smaller than the installed bed and cannot be used as the room footprint.
Mattress platform.Confirm the internal support-frame length and width for each sleeping tier.This determines mattress fit but does not represent the bed’s external dimensions.
Inter-tier clearance.Measure from the upper surface of the fitted mattress to the obstruction or structure above.Usable clearance changes when mattress thickness changes.
Top-tier clearance.Check the highest mattress surface against the finished ceiling and every overhead feature.Beams, slopes, lights, detectors, sprinklers, ducts and pipes may reduce usable space.
Room access and circulation.Allow for ladder use, walkways, door swings, storage, curtains, cleaning and installation access.A frame can physically fit while leaving the room impractical or unsuitable to operate.

Three Essential Clearance Checks

Complete these checks using the selected model, fitted mattress specification and measured room.

USE EXTERNAL DIMS

Plan the room around the complete frame footprint and its fixed projections.

ADD THE MATTRESS

Calculate usable tier clearance from the top of the fitted mattress surface.

CHECK THE ROOM

Measure ceilings, services, access routes and circulation at the actual bed position.

Model-Specific Spacing and Room-Height Checks

Triple models have different overall heights, structures and planning requirements. Use the figures below as a specification starting point and approve the final layout against current drawings and verified site measurements.
Comparison table
Triple bunk modelConfirmed planning informationRequired project check
Military Triple Bunk Bed.External dimensions are 1980 × 960 × 2080 mm; mattress frame is 1900 × 900 mm; planned room height is approximately 2400–2500 mm.Verify the exact side-rail level, fitted mattress thickness, overhead clearance and surrounding access.
Morpheus Triple Bunk Bed.The main frame is approximately 2000 × 933 × 2066 mm with two drawing dimensions of approximately 743 mm between indicated frame levels.Calculate usable clearance only after adding the selected mattress thickness and confirming the drawing reference points.
Repose Triple with Curtains.The 2066 mm base frame plus 525 mm curtain structure gives a complete installed height of 2591 mm; planned room height is approximately 2900–3000 mm.Check the highest curtain component, curtain operation, access and ceiling features.
Barracks and Community Triple models.Barracks is approximately 2570 mm high and Community approximately 2800 mm high; planned room heights are around 3000 mm and 3000–3100 mm respectively.Confirm the selected width, mattress depths, tier spacing and circulation from the current model drawing.
Hostel Triple with Curtains.The complete frame is approximately 2820 mm high with a planned room height of approximately 3200 mm.Verify the highest installed component, curtain movement, individual access, storage and power requirements.

BS EN 747:2024 Bunk Bed Standard - What Changed and What the Industry Needs to Know.

Frequently Asked Questions

How much clearance does a triple bunk bed need?
Clearance depends on the exact model, mattress thickness, tier levels, finished ceiling and overhead features. Use current technical drawings and measured room dimensions rather than one universal figure.
No. The Military Triple is 1980 × 960 mm externally and uses a 1900 × 900 mm mattress frame, making the complete bed 80 mm longer and 60 mm wider overall.
For occupant planning, measure usable space from the upper surface of the fitted mattress to the structure or obstruction above. A thicker mattress reduces this usable clearance.
The Military Triple is 2080 mm high externally and is planned for approximately 2400–2500 mm room height. The final decision must account for mattresses, side-rail levels, ceiling features and user requirements.
Allow for ladder access, walkways, door swings, curtains, lockers, underbed storage, power fittings, cleaning, maintenance, assembly and the site’s operational and fire-safety requirements.

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