A
Andrew Case
Once the joists are in and solid with regular noggins then as long as the base thickness on top is 2 layers THEN the tiling starts, that will be fine I think. Should be solid.
Make sure to use pressure treated timber and if poss soak the posts where they enter the ground in creosote or substitute. Belt and braces.
Make sure to use pressure treated timber and if poss soak the posts where they enter the ground in creosote or substitute. Belt and braces.