Stump Grinders

Match the grinder to your largest stumps. For occasional homeowner use on stumps under 12" diameter, a 9–14HP self-propelled grinder is plenty. For 12–24" stumps or 1+ acre of cleanup, step up to a 14–24HP towable grinder. Multiple acres or commercial-size stumps over 24"? Look at PTO grinders or 25HP+ towables. See our full sizing guide.

Most consumer stump grinders cut 6–12" below ground level — enough to plant grass over or build a deck. Commercial machines reach 12–18" deep. If you need to plant a tree where the old one stood (which requires removing the entire root ball), no grinder does that — you'd need an excavator. For most uses, 6"–12" below ground is plenty.

Self-propelled grinders walk under their own power — best for tight backyards, soft turf, or anywhere you can't drive a truck. Towable grinders are pulled to the site by truck or ATV — best for multiple stumps spread across acreage or a property where you can drive close. Self-propelled is more maneuverable; towable is faster between stumps. See our stump grinder buying guide.

Depends on stump diameter and hardness. A 12" softwood stump (pine, poplar) takes 15–30 minutes with a 14HP grinder. A 24" hardwood stump (oak, maple) takes 60–90+ minutes. Wider grinders, sharper teeth, and more HP all cut time significantly. First-timers usually take 2x longer than the spec sheet — pace yourself and let the grinder do the work.

Carbide teeth last 8–20 stumps depending on what you're grinding. Hard woods like oak and roots full of dirt/rocks dull teeth fast — sometimes a single rocky stump can wreck a tooth. Softer wood and clean stumps stretch lifespan considerably. Sharp teeth cut 2–3x faster than dull ones, so swap them when you notice slowing — don't push dull teeth, you'll burn out the engine.

Yes if you're not careful. The grinder spits chips and debris up to 20ft — keep windows, cars, and pets clear and use a debris guard if included. Self-propelled grinders rut soft turf with their drive wheels (worse when wet). Towable grinders can leave drag marks if you don't lift the cutting head between stumps. Tarps under the grinder catch chips and protect the lawn underneath.