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Hi All, I've managed to get a contractor quote me to pour and level our slab. It's a 'renoextension' jobbie (Extensions are up and old slab removed from current house) so all internal walls are up and I won't have any other brick/block walls going up on the new slab. Only major load will the the stairs. Buildup: Elevated A142 mesh with UFH cable tied 300mm EPS Insulation Compacted MOT T1 I therefore don't regard this as a structural slab. With the mesh in the slab, the mix will be a GEN1. I know others here like @JSHarris had C35 mix but that's only as they are true structural slabs, so I don't think I need to go that way. Would you agree? Some people around here keep on ranting on about not forgetting to add fibres.... Did someone forget??? looking at--> @Onoff Also, do I still need to add fibres? £15 extra/m3 seems to be worth adding I guess. I called the concrete company the aforementioned contractor uses and I was quoted £2130 (inc) for 15m3 so not too bad seeing that includes the pump. Nice bit of profit for the contractor who says the job will take 2 days with the two of them with the total cost being £4000 (excluding fibres)! So labour charge comes to about £400each per day! Is that realistic? Said he'd come rounf the day before to set up lasers and mirrors etc, but I bet he'll end up doing that 1/2hr before concrete arrives! I'm asking for a breakdown of his figures, but that does seem a bit high. I've called another national concrete firm and their price with fibres is £300 cheaper but then does not include the cost of a pump (which is likely to cost at least £300-£400 around here. So it's just his labour cost that seems excessive, imho. Guy seems to know his stuff at least and came recommended by a local architect and having found it difficult to find someone to pour the slab I may just have to bite the bullet. OB PS special offer at waitrose: https://www.mysupermarket.co.uk/tesco-price-comparison/Breakfast_Cereals/Kelloggs_Fruit_n_Fibre_500g.html