Container Loading Calculator for Bunk Beds
How many bunk beds fit in a 40ft container
A standard 40ft high-cube container (40HQ) has about 68 cubic metres of usable volume. A typical knock-down (KD) metal bunk bed ships in one or two flat cartons of roughly 0.10-0.13 CBM each. Dividing usable volume by carton volume gives about 260-400 double-bunk sets per 40HQ, depending on carton size and how tightly they stack. A 20ft container holds roughly 100-150 double-bunk sets.
Worked example
| Container | Usable volume | Carton size (LxWxH) | Per-carton CBM | Sets per container |
|---|---|---|---|---|
| 20ft | 28 CBM | 2000 x 1000 x 150 mm | 0.30 | about 25-32 |
| 40HQ | 68 CBM | 2000 x 1000 x 150 mm | 0.30 | about 55-70 |
The example carton (2.0 x 1.0 x 0.15 m = 0.30 CBM) is a common size for a twin-over-twin bunk. Single beds and triple beds use different cartons, so ask for a model-specific plan.
How to compute your own load
- Get the carton dimensions (mm) from the product spec.
- Multiply L x W x H and divide by 1,000,000,000 to get CBM per carton.
- Divide 68 (40HQ) or 28 (20ft) by that CBM, then apply a 85-90 percent stacking factor.
- For mixed containers, sum each model volume and compare against the container limit.
Why flat-pack matters for freight
An assembled bunk bed can occupy 5-10x the volume of a KD carton. Flat-packing is the single biggest lever on landed cost for overseas buyers, which is why Zehao ships every bed knock-down.
Frequently asked questions
How many single beds fit in a 40HQ?
400-540 sets of single beds fit in a 40HQ (cartons 0.10-0.13 CBM). Standard bunk beds load about 260 sets per 40HQ semi knock-down and 400+ sets fully flat-packed, while prison / correctional bunk beds cannot be fully broken down and load around 220 sets per 40HQ. A carton-level loading plan is issued with the quotation.
Can Zehao provide a loading plan for my order?
Yes. After you choose models we issue a carton-level loading plan with total CBM and container count.
Do you ship FOB or CIF?
FOB Tianjin by default; CFR and CIF are available on request.
Related pages
Last updated: 2026-09-27. Figures are typical estimates for planning; request a model-specific plan before booking.