Before designing, I have to know roughly about the volume (weight and space) of the basket that parents need for the groceries. I went to Woolworth and assume groceries for two days.
The weight is about 7.57 to 8kg and the size of the basket is 43cm length x 29cm wide x 25cm depth. However, one basket is usually not enough for family grocery needs.
Baby nappies and tissue paper take a lot of space in the shopping basket.