If you put anything on topsoil, however wondrous and clever, then it will definitely move. Topsoil is constantly evolving - twigs rotting, worms digging, so it's just not suitable for building anything on. This is why all housebuilders dig through it and building regulations insist on it, if they could save a few million nationally by not bothering then I'm sure they would.
Building on topsoil is only suitable for a lightweight shed that doesn't adjoin a building, so movement doesn't matter. Even then you might get a sunken floor in an area that happens to be softer.
You need to compare like with like. The flatpacks don't include assembly or a base, so they're not comparable to the whole build cost. They're the equivalent of buying the bricks, roof and windows. When all costs are included they're probably pretty equivalent.
I've just bought an entire artic truckload of bricks (20 pallets) for £6000. Way more than would be needed for something like that shown at the start of this thread.
You need to compare like with like. The flatpacks don't include assembly or a base, so they're not comparable to the whole build cost. They're the equivalent of buying the bricks, roof and windows. When all costs are included they're probably pretty equivalent.
I've just bought an entire artic truckload of bricks (20 pallets) for £6000. Way more than would be needed for something like that shown at the start of this thread.
They're supposed to be DIY, the company doesn't offer an install service, they're also supposed to be built on a simple base eg sub-base or existing patio. If you went to the trouble of building conventional foundations and paying for installation it defeats the whole point of them, crap that they are.
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