Understanding Cubic Metres: How Movers Calculate Your Quote

If you’ve requested a moving quote in South Africa, you’ve probably seen pricing expressed in “cubic metres” or “m³” and wondered what that actually means for your specific move. Here’s a plain-language breakdown.

What Is a Cubic Metre?

A cubic metre is a unit of volume — a space measuring 1 metre in length, width, and height. Movers use it because it’s a consistent way to estimate how much space your belongings will take up in a truck, regardless of the shape or weight of individual items.

Why Movers Price by Volume, Not Weight

Unlike courier services, which often price by weight, household moves are almost always priced by volume because trucks run out of space long before they run out of weight capacity. A couch and a box of books might weigh similar amounts, but they take up very different amounts of truck space — which is what actually determines how many trucks or trips your move requires.

Roughly How Much Space Do Common Items Take Up?

These are general estimates — actual volume varies by item size and how efficiently it’s packed:

• Standard moving box: roughly 0.1-0.15 m³
• 3-seater couch: roughly 1.5-2 m³
• Queen bed (frame, mattress, headboard): roughly 2-2.5 m³
• Fridge: roughly 1-1.5 m³
• Dining table + 6 chairs: roughly 2-3 m³
• Wardrobe: roughly 1.5-2 m³

Estimating Your Total Volume

A rough guide for full-home volume:

• Bachelor flat: approximately 5-8 m³
• 1-bedroom apartment: approximately 8-12 m³
• 2-bedroom home: approximately 12-20 m³
• 3-bedroom home: approximately 20-35 m³
• 4-bedroom+ home: approximately 35 m³+

These ranges are starting points — a minimalist 3-bedroom home and a heavily furnished one can differ significantly.

Why an Accurate Estimate Matters

Underestimating your volume is one of the most common causes of “surprise” charges on moving day. If your actual load is significantly bigger than what was quoted, movers may need a bigger truck, an extra trip, or additional crew — all of which cost more than if the volume had been assessed accurately from the start.

How to Get an Accurate Volume Estimate

• Do a room-by-room inventory rather than guessing a total figure.
• Include everything — garage, storage areas, and outdoor furniture are commonly forgotten.
• Use a volume calculator or send photos/video if a mover offers a remote assessment — this is usually more accurate than a phone-only estimate.
• Ask for an in-person or video survey for larger homes, where small estimation errors can have a bigger cost impact.

Getting a Quote Based on Real Volume

Because pricing is so directly tied to volume, the best way to avoid over- or under-quoting is to work from an actual inventory rather than a rough guess. On MoveXpress, you can build out your inventory when requesting a move, so the quotes you receive from verified movers are based on your real cubic metre count — not a guess that gets “corrected” once your furniture is already on the truck.

Understanding cubic metres won’t make packing any more fun, but it does mean the number on your quote and the number on your final invoice are far more likely to match.