We are looking to install a paved patio in a currently unused area of grassed garden.
Research suggests digging down to allow for 4″ compacted MOT type 1, then 25mm slab layer plus thickness of the pavers, all very straightforward.
However, we also want a pergola so need four upright posts. The “easy” way would be to simply dig holes for these first, drop them in, square them up then post-crete into place and then start the above steps around them. However, I’d rather the posts were out of the ground for lifespan. Plan F (i’ve gone through lots of thoughts!)….Dig post footings in the area the post are going to go. Fill with concrete and insert a cast in-situ support to the correct height, just above paver level, something like this.
https://www.toolstation.com/concrete-in-sleeper-base-anchor-bracket/p75498?store=CH&utm_source=googleshopping&utm_medium=feed&utm_campaign=googleshoppingfeed&gclid=EAIaIQobChMI8qrZps6U8AIVz-7tCh065g8jEAQYBiABEgKWGfD_BwE
Problem here is that the pavers will need cutting around this so might need a sizeable hole. I cant make the upright point at a junction, it will be mid paver. Also, what depth should the support footing be to, in line with the MOT level or the slab layer level, or the paver level?
Another option is to do all of the above, but rather than insert the support, just cast in a cardboard or timber dowel to form the hole, withdrawn it once the concrete sets, install the pavers, cut a neat small hole in the paver corresponding to this formed existing hole in the footing position, then insert the support, using resin fixing or similar.
Or just install the patio, then drill and plug base plates on the finished patio. Which seems a bit rough, when I could get a decent mount sorted during the build….
I might be overthinking this but likewise only want to do this once. Any thoughts?