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Transitioning flagstone installation from slab to dirt advise

Posted by elpicudo 7 (My Page) on
Sun, Apr 27, 08 at 2:59

This is our project. In our backyard we have a slab of concrete about 20x20 that we want to extend another 20X10 to make the patio larger and to take care of an area where we can't grow anything due to pet traffic/shade so it gets muddy when it rains and the dog tracks mud in the house.

We have decided on flagstone for this project. For the slab portion we are just going to lay the flagstone on top of it. The question I have is how to transition from the slab to the dirt portion and how to fill in the spaces between the stones.

I was thinking about using cement to fill in the gaps, this will work well for the part that is on top of the concrete slab, but then I read that it will crack due to settling when used over sand base. The other option is to use decompose granite or sand to fill in the gaps, but my concern is that we will track all sort of dirt on the shoes and we have wood floors throughout the house making the initial problem we were trying to solve worst.

Is there a method that will work well on this particular situation.
Any help is greatly appreciated.
Thanks


Follow-Up Postings:

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RE: Transitioning flagstone installation from slab to dirt advise

Try a boot scraper for the humans. 6" of gravel then sand tamp down real good then use mortar in the cracks and if it cracks then re-mortar, get an extra bag or two so you have the same color lot. You'll find out if you tamped down good over time.

Here is a link that might be useful: Propagating Perennials


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RE: Transitioning flagstone installation from slab to dirt advise

Our landscaper made a new flagstone pathway in our yard, a base of 6 inches of -3/4 size limestone and powder. The flagstones, in between stones used a product called "polymeric sand", and sand with some sticky compound added to it. It stays where you want it, and when wet and after drying, stays kind of firm. However, if you need to rearrange or move the sand, it will break apart again into powder, then back into the spaces. We don't have pets on the area.


 
 

 

 


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