Hi there, My first post, hopefully in the correct section... This might be a bit long winded and few basic questions so please bare with me I’m looking to build a workshop in my garden, 4.8m x 3.6m ..exact (4880x3660) good n strong The garden is on a slope apx 15-20 degrees so think my best option after days on YouTube to save digging out a good few tons of muck is to make it raised and fixed on 4x4 posts concreted into the ground with bearers/skids on top and build the floor off that. idea is.. Hand/petrol auger ,go 500ish deep each hole. Layer of compacted/tamped MOT in the base of the hole and proper concrete not postcrete with 4x4 upright posts Once levelled, I’ll cut the upright posts down to size and then fit galv steel u shape brackets on top. I’ll then fix the bearers/skids to them. The plan is to Support the base every 600mm 4.8m div 8 = 600 So 24 holes -3 rows (front/mid/rear) The 3 rows will be equal spaced 1200ish Is this overkill or not?lol Hope that makes sense how I’m trying to explain it Does my plan sound good or naff or completely overkill!!! Be really grateful for some ideas and opinions Also another question I’m looking to use 5x2 or 6x2 for the base, given the spans I have what would be best, noggins spaced ev 16”/405 And... what size screws would be ideal for fixing all together? Thinking 6x150mm for the main joists and 6x100mm for the noggins?? are there ‘specific’ joist screws to use that a designed for the weight and use outdoors? Thanks for any and all help guys I really appreciate it Ant . . . . .