What Size Stump Grinder Do I Need?

Removing stumps from your yard can transform the look and usability of your landscape, but figuring out which stump grinder to use can be confusing. Stump grinders come in various sizes and types, each suitable for different situations.

This guide will cover the different sizes of stump grinders, what they are best used for, and how to determine the right stump grinder for your project.

Understanding Stump Grinders and Their Purpose

Stump grinders are powerful machines designed to chip away at tree stumps, removing them from the ground by reducing the stump to small wood chips. They typically have a rotating cutting disc that chips away at the wood.

The purpose of a stump grinder is to eliminate stumps after a tree has been removed, which helps prevent regrowth, makes room for new plants, and clears space for landscaping or construction projects.

There are four main categories of stump grinders based on size and capability: Handheld or Portable Stump Grinders, Walk-Behind Stump Grinders and Riding or Towable Stump Grinders, and Self-Propelled Stump Grinders.

Each of these categories serves a unique purpose and is suited to different sizes of stumps and project types.

The Four Main Stump Grinders

Let’s explore the different types of stump grinders, their ideal uses, and the pros and cons of each to help you find the best stump grinding machine for your needs.

Handheld or Portable Stump Grinders

Best For: Small stumps, DIY enthusiasts, light usage

Handheld or portable stump grinders (also known as a handlebar stump grinder) are the smallest and most lightweight type available. They are typically powered by gasoline or electricity and are manually operated by the user.

These grinders are ideal for small stumps with a maximum depth of 6 inches and are typically used in residential settings where stumps are not large or deeply rooted. Additionally, due to its compact size, it works best when dealing with a soft stump.

Advantages

• Portability

Handheld grinders are compact and easy to transport, making them ideal for small spaces and hard-to-reach areas.

• Cost-Effective

These are the least expensive type of stump grinders, which makes them an excellent choice for homeowners with occasional needs.

• User-Friendly

Their straightforward operation means they’re easy to handle for those who don’t have extensive experience with heavy machinery.

Limitations

• Power and Depth Limitation

Portable grinders may not have enough grinding power for larger or harder stumps and often can only grind up to 6 inches deep, meaning they aren’t ideal for bigger jobs.

Our Verdict

If you’re a homeowner dealing with small, shallow stumps, a handheld stump grinder or smaller stump grinders might be all you need. However, if you have a larger tree stump or plan on tackling multiple tough stumps, you may want to consider a more robust option.

Walk-Behind Stump Grinders

Best For: Medium to large stumps, moderate to heavy-duty residential or light commercial use

Walk-behind stump grinders are a step up in power and size. These wheeled stump grinders are designed for moderate use, are generally gas-powered and allow users to operate them from behind, reducing the need for strenuous lifting.

Its cutting wheel can grind stumps to around 20 inches in diameter and can handle a variety of wood types, including some hardwoods.

When it comes to the ease of manoeuvring this machine, this will largely depend on whether you’re working on rough or uneven terrain.

Advantages

• More Power

Walk-behind stump grinders are more powerful than handheld models, making them better suited for medium-sized stumps and slightly larger projects.

• Greater Depth Capacity

Wheeled walking grinders can grind deeper than handheld grinders, with most models capable of reaching depths up to 8-10 inches.

• Easy to Operate

While more robust, walk-behind grinders are designed with ease of use in mind. However, it might be better suited for individuals with more handling experience.

Limitations

• Less Portability

Due to their size and weight, these wheeled grinders are bulkier and harder to transport. You may need a trailer or a truck to move them from one location to another.

• Higher Cost

Walk-behind grinders are more expensive than handheld versions, though they remain affordable for homeowners who expect frequent use.

Our Verdict

Walk-behind stump grinders are a versatile choice for individuals who have some experience working a stump machine. They’re ideal for homeowners with multiple stumps to clear that are bigger or for small landscaping businesses that encounter various stump removal needs.

Riding or Towable Stump Grinders

Best For: Large stumps, heavy-duty commercial use, large-scale projects

Riding or towable stump grinders are incredibly more powerful and larger than the two machines above. However, the size and type of stumps that it can work on depends on the grinder type (tracked stump grinder, wheeled stump grinder, etc).

These machines are gas or diesel-powered and are usually towed behind a vehicle or operated from a cab where the user sits and controls the machine.

Advantages

• Extreme Power

Riding or towable stump grinders are equipped with powerful engines, allowing them to grind large and deeply rooted stumps quickly and efficiently.

• Professional-Grade Capability

These grinders are capable of removing stumps up to several feet in diameter and can often grind to depths of 20 inches or more.

• Efficient for Large Projects

If you need to clear multiple stumps in a short amount of time, a riding or towable stump grinder is the most efficient option.

Limitations

• High Cost

Ride-on grinders are typically the most expensive option, making them better suited for commercial use than for residential users.

• Size and Transportation Requirements

Their large size requires a trailer for transportation, and due to their weight, they’re not ideal for small yards or areas with limited accessibility.

• Skill Requirement

Operating a riding or towable stump grinder requires more training and experience to use effectively and safely.

Our Verdict

For professional landscapers or anyone involved in large-scale land clearing, a riding stump grinder or towable stump grinder is likely the best choice. These machines are powerful enough to handle the tougher stumps and are designed for consistent heavy-duty use.

Determining the Right Size Stump Grinder for Your Needs

To select the right size of stump grinder, we’ve listed several factors below.

Stump Size and Type

• Measure the diameter of the stump at ground level to determine its size.
• Consider the type of wood, as hardwoods (like oak) require more power to grind than softwoods (like pine).
• Handheld grinders work best for stumps up to 6 inches in diameter, while walk-behind grinders can handle up to 20 inches. For anything larger, consider a riding or towable model.

Frequency of Use

• If you’re only grinding stumps occasionally, a smaller, less expensive model should suffice.
• Invest in a walk-behind grinder or rent a riding grinder if necessary for frequent or multiple stump removal tasks.

Project Scope and Location

• Small, portable grinders are better suited for urban and residential areas with limited space and small stumps.
• Larger properties with numerous stumps may require a walk-behind or riding grinder to cover the ground efficiently.

Budget and Cost Considerations

• Portable grinders are the least expensive option, ranging from $200 to $500.
• Walk-behind models typically range between $1,500 and $5,000.
• Riding or towable grinders can cost anywhere from $10,000 to $40,000, though rental options can make these more accessible for one-time use.

Safety and Skill Level

• Ensure you’re comfortable operating the grinder you choose. Smaller, handheld models are easier for beginners, while larger models may require training.

Alternatives to Owning a Stump Grinder

If purchasing a stump grinder seems unnecessary for a one-time project, renting a machine is an excellent option. Many hardware and equipment rental stores offer stump grinders for daily or weekly rates, giving you access to the exact size machine you need without the long-term commitment.

Professional stump removal services are also an option. They bring their own equipment, removing the need for you to handle a grinder altogether. This is often the most convenient solution for larger stumps or for those without experience using heavy equipment.

Conclusion

Choosing the best stump grinder can significantly impact the ease and success of your stump removal project. Handheld and portable models are best suited for small stumps and occasional use, while walk-behind grinders offer a powerful middle-ground solution for medium-sized stumps. For the largest and most stubborn stumps, a riding or towable grinder provides professional-grade power and efficiency.

Evaluate your stump size, project needs, and budget to make the best choice for your yard or worksite. With the right equipment, you’ll be able to tackle any stump and transform your outdoor space effectively and safely.