Rate per m²

With Price per m², the price is the area times your rate:

price = width × height × rate

For example, 120 × 150 cm at $45/m² is 1.2 m × 1.5 m = 1.8 m², so $81.00.

Settings

Setting	What it does
Unit	Centimetres, millimetres or inches. Customers enter sizes in this unit.
Min / Max width and height	Allowed range for each size. Sizes outside it are stopped at checkout.
Step	Sizes are rounded up to the step, for example to the next 5 cm.
Minimum price	The lowest amount charged, however small the size.
Setup fee	A fixed amount added to every item.
Rounding	Rounds the final price up, for example to the next $1.

The order is: area × rate → minimum → setup fee → rounding.