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FAQs

What is the difference between dethatching and scarifying?

Dethatching removes the layer of thatch that builds up between the soil and live grass, while scarifying digs deeper into the soil to break up compacted layers, remove moss/debris, and promote better aeration for root growth.

What's the difference between the corded and cordless dethatchers?

The corded models (GVB1316, GV1212B) plug in for unlimited runtime as long as you're near an outlet. The cordless CLGVB4816 runs on a 48V MAX battery for up to 48 minutes, trading unlimited runtime for the freedom to move around the yard without a cord.

When's the best time of year to dethatch my lawn?

Timing depends on your grass type, generally early fall for cool-season grasses and late spring for warm-season grasses.

What's the difference between the 12-inch and 16-inch scarifier models?

The 16-inch GVB1316 covers more ground per pass and has a larger 12-gallon collection bag, better suited for larger yards. The 12-inch GV1212B is more maneuverable for smaller or tighter spaces, with a 7.4-gallon bag.

How much thatch can the collection bag hold before I need to empty it?

Between the range of models available, capacity varies from 7.4 gallons to 12 gallons.

A healthy lawn needs more than mowing, removing built-up thatch and moss lets air, water, and nutrients actually reach the soil. LawnMaster's scarifiers and dethatchers switch between scarifying and dethatching in one machine, with adjustable cutting positions to match your lawn's condition.

Deck widths range from 12 to 16-inches, with collection bags sized from 7.4 to 12 gallons depending on the model, so you can match the tool to your yard size and how much thatch you're clearing. Our cordless option adds battery-powered convenience for yards where a cord gets in the way.

Timing matters for dethatching, generally early fall or late spring depending on your grass type, so check what's right for your lawn before you start. Browse LawnMaster's full lawn care lineup, and explore robot mowers, string trimmers, leaf blowers, and more. 

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