LMP-6419 Petrol Lawn Mower

To know what size you need, divide the mower deck size by 12 to get an approximation of the acreage the mower can handle. So residential-duty a mower with a 54-inch deck can mow up to 4.5 acres. That's a lot of grass and would result in significant wear and tear on a residential-grade mower in the course of the season.