Advice for a new Garage floor please?

[SortedPlumbing]

Ok - New Extension build internal garage 5m x 3m, Ready to pour my garage floor, looking for wee bit of builders info!?

1 - How high do i bring the height of the floor upto? Do i bring it up to below/same height / or above the DPC?

2 - How deep should my hardcore be?

3 - What type of concrete do i need?

4 - What depth of floor is recommended?

think i am kiddin myself on thinking that i would be able to do this myself -might be time to bite the bullet and get a builder in?

 

[PrenticeBoyofDerry]

I would not go above the house dpc, try stay a good 150mm below it.
compressed hardcore 100mm, and a 100mm pour, if you order ready mix they will advise.

 

[SortedPlumbing]

Kool, just gona get my builder to do it! dont wanna risk making a mess of it!