ᐅ Is a driveway paved with 40x20x8 mm pavers suitable?

ASK0043 schrieb:

We laid 40 by 20 paving stones. This size is quite common in our building area. It wasn’t difficult to install. Larger stones (although I don’t find 40 by 20 that large) eventually become too unwieldy for manual installation. With smaller stones, you face other issues, especially regarding surface evenness. Our neighbor has stones around 7 by 7, which were installed by a landscaping contractor, but the surface doesn’t look particularly level.

Why should that be a problem if it’s done properly? Whether something sinks or not depends on the subbase. If the base is poor, a 40 by 20 stone will settle just as much as a 20 by 10 stone. Our sidewalks and driveway entrances in this development, using the usual sidewalk sizes (20 by 10 or smaller), are in perfect condition, even though 40-ton trucks sometimes drive over them.

If the laying isn’t even, the landscaper should be held accountable... but the stones themselves are definitely not the cause. In fact, smaller stones tend to compensate for unevenness even better.

I would prefer to mix such large stones, like in the pictures from Kann, or at least alternate the rows regularly.

Have those who see this as trouble-free actually installed the stones themselves? We laid 60m² (645 sq ft) of 30x20cm (12x8 inches) stones on our own, and halfway through, I would have preferred 20x10cm (8x4 inches) stones. Of course, that means more pieces, but you can’t really place the 30x20cm stones with one hand anymore, and they are simply more difficult to handle. I don’t even want to imagine working with 40x20cm (16x8 inches) stones.

So, it’s not a problem in the sense of being impossible, but I would definitely call it extra effort. And I would insist on getting additional payment for that.

40x20x8 weigh about 15kg (33 pounds). That’s a box of water...