Looking for stone for House Construction

[pchowhan]

Hi,

I am planning to construct house in Whitefield and am looking about sizable quantity of stone for the same (about 25-30 truck loads). I wanted to know from the forum if there are any demolish-er where I can get good quality stone. I would need Random rubble as well as block stones. Also question to forum:

1) Is it ok to have walls with used stone? Any de-merits about the same.
2) Is is ok to use stone from demolished buildings for a house.

Thanks