ᐅ Angle grinder for cutting multiple paving stones and curbstones?

Hello,

We are planning to pave about 40m2 (430 sq ft) on our property soon. The paving stones are approximately 10cm (4 inches) high, and the edging stones about 25cm (10 inches) high.

I have heard that some people cut the stones using angle grinders. For the borders and especially for the rows of paving stones, I will need to cut regularly. From what I have found online, angle grinders should have at least 23cm (9 inch) blades and 1500 watts. However, I have also seen opinions stating that 12.5cm (5 inch) diamond-coated blades and 750 watt machines are sufficient.

So my questions are:
- Based on your experience, what specifications should an angle grinder have for this kind of task?
- Is an angle grinder enough, or would it be better to rent a proper stone saw somewhere? Buying a new one probably isn’t worth it for this small project.

Hello,

that toy won’t get you very far. For the paving stones, you need a wet saw table, and for the curbstones, a 14-inch (350mm) angle grinder. With some skill and experience, you can manage with smaller machines, but if you’re asking this kind of question, you probably haven’t done it before, so it’s better to go with the option more suitable for beginners. Always be careful—you can easily injure yourself.

Hi Alex,
thanks for the feedback. Isn’t it possible to cut curbstones with a wet saw? I thought you could basically cut all kinds of stones with it.

The large angle grinder is definitely sufficient for this. You can also use it to cut the edging stones. We've done this several times.
I would be skeptical about the smaller one.

But it's better to plan the area so that you don't have to cut the paving stones. That will save you a lot of work.

I have also worked with a 125mm (5-inch) angle grinder. You have to cut the bricks from both front and back because you can't cut all the way through in one go, but with some skill, that's no problem. Of course, it creates a lot of dust, so if your neighbor has just hung out fresh laundry, it will be difficult for you to cut the curbs. 🙂

MaxMustaman92 schrieb:

So my question is:
- Based on your experience, can you recommend what specifications an angle grinder should have for my project?

A professional-grade tool, for example from Bosch.
I used one at my last house to cut all the curbstones for the terrace edging as well as paving stones. Use a tool with a 230mm (9 inch) disc—that means a truly "heavy-duty" machine—and a water hose so you can cut wet. This way, the stones cut like butter.
Or simply rent the tool.