Quick(ish) Turf Question

[leevis]

Elloooo
What is the recommended depth of top soil to lay turf on? I have read that the recommended depth is between 100mm and 150mm (4"-6").
Which one would be the preferred depth and does this include the one inch that would come with the turf?
Also, can i put Type One or ballast or anything else underneath this to raise the level?
It would appear that MOT Type One is cheaper that topsoil where i am and i have about a tonne left over from something else, could i raise the level to give me the 4-6inches?
Lee

 

[Diyisfun]

The depth is for roots.
So if you need to raise the lawn raise it then put the topsoil down

 

[leevis]

So, if i was to put Type One down as a base, and then 4 to 6 inches of top soil, it would grow fine?
Four Inches would be preferrable to be honest.

 

[Thermo]

no not really mot can be quite poor draining, so you can end up with problems.

 

[leevis]

I have loads of bits of slabs and stuff, if i broke that up would it be any good? Also i have about a 1/4 of ballast, any good?

Obviously i would rather get top soil but i think it would be a waste

 

[Thermo]

how much do you need to raise it by?

 

[leevis]

I havent exactly measured it but i would guess that in places it would have to be raised over 6 inches

 

[Thermo]

use a levelling soil. its the best you can use and it is easy to work with. Using the other stuff you have suggested is a complete false economy. would you build a house and skimp on the foundations to save a few quid. the lawn will be down for years. give it the best start and it will last. skrimp on it and youll be doing it all again next year.