Spec advice pls

[Rookery]

I'm quoting to tile an 8 sq mtr bathroom floor with 450 x 300 x 10 honed & filled travertine in a victorian house. The floor is T & G and nice and solid. I'm proposing to overboard with 6mm Hardie fixed with RSF and screws then lay Ditra with RS then tile with Keraquick white. No UFH is involved.
Does this spec sound OK or would you do it differently?

 

[Discount Tile Supplies]

10mm board i would say.

 

[DHTiling]

I think the stone will be 12 mm.

And as long as it is solid , then ye , your spec is fine.

 

[Rookery]

Thanks. The floor is as solid as a timber floor can be and being Victorian, the house is well built with good materials unlike todays poor standards. I might go 10mm Hardie at the last minute, I want to minimise the step up as much as possible.

 

[DHTiling]

That's 12mm hardi lol.

Let us know how it goes.