Mini Excavator Size Guide: How to Choose the Right Machine for Your Property

Every week, someone posts in an online forum: “What size excavator should I buy?” The answers are usually all over the map. Get the biggest one you can afford. No, get the smallest one that will fit through your gate. Buy once, cry once. Start small and upgrade.

After talking to dozens of owners and spending time on my own property with a RIPPA R15, I’ve developed a different approach. Instead of guessing, work through these five questions. Your answers will point you directly to the right size.

Question 1: What’s Your Gate Width?

This is the most practical question and the one people overlook most often. If you can’t get the machine to the back of your property, nothing else matters.

Standard residential gates in North America are typically 36 inches wide (914 mm). Some are 32 inches. Very few are wider than 40 inches unless you installed them specifically for equipment access.

What this means for your choice:

• If your gate is 36 inches or less: You need a machine that can fit through it. The RIPPA R10 and R13 both have minimum widths under 36 inches. The R10 is fixed at 900 mm (35.4 inches). The R13 telescopes down to 950 mm (37.4 inches)—slightly wider but still manageable if you have a 36-inch gate with a little wiggle room.

• If your gate is wider than 40 inches: You have more options. The R15 telescopes down to 980 mm (38.6 inches), which fits through a 40-inch gate. The R18 telescopes to 1,100 mm (43.3 inches)—you’ll need a wider opening.

• If you have no gate or can remove fence panels: Congratulations. You can consider any size based on your other needs.

Real owner story: A forum member bought an R18 without measuring his gate. It didn’t fit. He spent a weekend removing and reinstalling fence panels. He still loves the machine, but he wishes he’d measured first.

Question 2: What’s Your Heaviest Task?

Think about the hardest job you plan to do. Not the most common job—the hardest one. That’s what determines your power requirements.

Light tasks (gardening, small trenches, planting): Any machine will work, but the R10 or R13 is plenty. Their digging force of 9–10 kN handles loose soil and small roots without issue.

Medium tasks (driveway repair, medium trenches, stump removal under 12 inches): You want at least 10 kN of digging force. The R15 at 10.4 kN works well. The R18 at 15.8 kN gives you a comfortable margin.

Heavy tasks (large stump removal, pond excavation, heavy clay soil): Look at machines with 15 kN or more. The R18, R22 (22.5 kN), and R32 (28.5 kN) are your options here.

Professional tasks (commercial excavation, large foundations): The R57 with 45 kN of digging force is in a different class entirely.

A rule of thumb from experienced owners: Buy for your hardest task, not your most common one. It’s better to have power you don’t need than to need power you don’t have.

Question 3: How Deep Do You Need to Dig?

This seems obvious, but you’d be surprised how many people buy a machine only to discover it won’t dig deep enough for their main project.

Common digging depths by project:

Matching machines to depth:

• R10: 2.15 m (85 inches) — deep enough for most homeowner tasks

• R13: 2.4 m (94 inches) — handles deeper drainage

• R15: 2.5 m (98 inches) — good for ponds and moderate foundations

• R18: 2.9 m (114 inches) — deep enough for almost any residential need

• R22: 2.9 m (114 inches) — same depth as R18 but with more power

• R32: 3.3 m (130 inches) — agricultural drainage depth

• R57: 4.1 m (161 inches) — commercial grade

Important note: These are maximum depths. For comfortable digging, you want your machine’s maximum to exceed your required depth by at least 6–12 inches.

Question 4: How Will You Transport It?

This question gets ignored until the machine is sitting at the dealer and you realize your trailer isn’t big enough.

Transport options by machine weight:

• Under 1,500 kg: Can be hauled by a half-ton pickup with a single-axle trailer. The R10 and R13 fall into this category.

• 1,500–2,200 kg: Requires a half-ton or three-quarter-ton truck with a tandem-axle trailer. The R15 and R18 need this setup.

• 2,200–3,500 kg: Three-quarter-ton or one-ton truck with a heavy-duty trailer. The R22 and R32 require serious towing capacity.

• Over 3,500 kg: Commercial transport recommended. The R57 is in this class.

If you don’t have a truck:

Many dealers offer delivery for a reasonable fee. Some owners arrange delivery once and leave the machine on their property permanently. That’s worth considering if you don’t plan to move it around.

If you plan to trailer frequently:

Factor in the total weight (machine + trailer) and make sure your truck is rated for it. Also consider loading and unloading—heavier machines need ramps or a low-boy trailer.

Question 5: What’s Your Experience Level?

This is the question nobody asks, but it might be the most important one.

Beginner (zero experience): Start with a smaller machine. The R10 or R13 are forgiving, easy to learn, and less intimidating. You can always sell and upgrade later. Many owners start here and move up as their skills grow.

Some experience (rented before, watched lots of videos): The R15 is perfect. It’s powerful enough for serious work but still manageable for someone with basic skills. This is the most common entry point for homeowners.

Experienced (operated before, comfortable with controls): The R18 or R22 give you the power to tackle big projects without feeling limited. Just be careful—more power means more potential for damage if you make a mistake.

Professional (commercial operator): The R32 or R57 are appropriate, but you already know that.

A warning from a seasoned owner: “I bought an R22 as my first machine. It was too much. I spent more time being careful than actually working. I should have started smaller.”

The RIPPA Lineup at a Glance

Two Common Scenarios

Scenario A: The Suburban Homeowner

You have a half-acre lot with a garden, some trees, and a gravel driveway. You want to dig trenches, plant trees, maybe remove a few small stumps. Your gate is 36 inches wide. You have a half-ton pickup.

Recommendation: R13 or R15. The R13 fits through your gate easily. The R15 might fit with careful measuring. Both give you plenty of power for typical suburban projects.

Scenario B: The Rural Property Owner

You have five acres with woods, a long driveway, and drainage issues. You need to remove stumps, clear brush, dig deep trenches, and maintain the driveway. You have a three-quarter-ton truck and a tandem trailer. Gate width isn’t an issue.

Recommendation: R18 or R22. The extra power will make stump removal and heavy digging much easier. You’ll appreciate the capability when dealing with larger projects.

What Owners Say About Their Choices

R10 owner: “I almost bought an R15, but I’m glad I didn’t. The R10 is perfect for my small property. It fits through my gate, it’s easy to haul, and it does everything I need.”

R15 owner: “This is the sweet spot for most homeowners. Powerful enough for real work, small enough to store in my garage. I’ve done driveway repairs, drainage, landscaping—it handles it all.”

R18 owner: “I went bigger because I have a lot of stumps. The extra power is worth every penny. It’s not as easy to move around as a smaller machine, but for my needs, it’s perfect.”

R22 owner: “I used mine to dig a swimming pool. Paid for itself on that one project. If you have major excavations planned, don’t mess around—get enough machine.”

Final Advice

Choosing the right excavator size isn’t complicated, but it does require honest answers to practical questions. Measure your gate. Think about your hardest task. Calculate your transport capacity. Be realistic about your experience.

And remember: you can always sell and upgrade. The first machine doesn’t have to be the last one. Many owners start with an R10 or R13, gain experience, and move up to a larger model when their projects demand it.

The most important thing is to start. Once you have a machine on your property, you’ll wonder how you ever managed without one.

Ready to find your perfect match? Visit the RIPPA website to explore models, compare specs, and locate a dealer near you. Most dealers offer demonstrations so you can see the machines in action before you decide.