At least you can dig in your yard. Most plants only need around 30cm of soil to grow in so you should be okay. My yard is full of rock in between pockets of sand. No matter where I put a shovel in the ground, there's rock. Some is broken up and in many smaller pieces that can be removed with some effort, some of it is massive slabs of the stuff that would require mining equipment including explosives to remove, so I'm stuck with all raised bed gardening, but that's okay because I'm not getting younger and healthier, so raised beds are better for my longer-term future anyway. The most painful part is that I have a dog that loves to dig, so I have to fence off all my garden areas to protect them from him, and putting a fence post into the ground can take days of digging around and breaking up whatever rock can be just to find a spot where it can be put in the ground.Thank you so much 😍
yeah the topsoil isn't that bad even if it contains a lot of sand actually... the bad thing is 60cm (sometimes just 40cm) beneath comes bure clay and waaaaaaay down there is brown coal and some porous stone stuff that I can't name... all in all the topsoil can't hold moisture for long, the second layer beneath can't absorb water that well and waaaaay down below it gets oily from the brown coul or lost due to the porous stone😅 That's why I'm heavily getting into mulching this year, hoping to get the water problem under control on the surface or at least to better the situation and to help get more organic matter into the topsoil to balance the sand better out🤔 because it really isn't that bad. It lives, there're bugs and worms and stuff, which is really good.
And yeah the grid paper is a thing of mine... when we moved last time I mesured all our furniture and planned it out on a drawing of our new flat on grid paper so the day we actually moved the heavy stuff we just placed it once and there it stayed 😁 I find it easier that way. I need a picture in my head, a goal that I want to reach, before I start stuff like that. if later on problems arise i can always still alter my plans as needed...