Apple cider vinegar can be diluted half-and-half with water for external application, and, when stronger measures are needed, it can be used full-strength.
1 Just the stone for a flagstone patio can cost $3 -$5 a square foot or more, depending on location and the type and quality of stone, or about $600 -$1,000 for an average patio up to 10'x20,' and $1,200 -$2,000 for a larger 20'x20' area.
Bluestone Patio Costs Per Square Foot. Pricing Options. If youâd like to know what bluestone patio costs per square foot are, find out below. But thatâs not all! I also show you what one of my patio designs actually costs with a seat wall and landing. You can remove each of the extra features (wall and porch) and see what the patio alone would be.