How to review assumptions

Assumptions explain how Nulla calculates items when the source data is incomplete.

REINFORCED CONCRETE — C40

Default assumptions

MPa40default

Reinforcement ratio120 kg/m³default

Density2,400 kg/m³default

Wastage factor5%edited

Transport distance50 kmdefault

Steps

6 steps

1
Open a mapped item
Select any line item that has been classified.
2
Open assumptions panel
Click 'Assumptions' to view applied defaults.
3
Review default values
Check the assumed values Nulla used for the calculation.
4
Update values
Adjust any inputs that don't match your project specifics.
5
Save the change
Persist your edits before leaving the panel.
6
Rerun the item
Recalculate the line item so the new values take effect.

Common assumptions

Concrete MPa, reinforcement ratio, material density, thickness, product weight, wastage factor, transport distance and installation factor.

Quick check

Review assumptions for high-impact items first.

Common issue: The BOQ does not show MPa or thickness

Nulla may apply a default assumption. Review it before finalising results.

CONTINUE