A small number of people will have a blood pressure at very high levels, above 240/120mmHg for example, and this can cause problems very quickly and it needs to be treated straight away. For a blood pressure chart of readings, click here.
Materials and installation for a stone retaining wall start around $25-$40 a square face foot and go up depending on materials, site conditions, and other factors. It costs $1,250-$2,000 or more for a wall 30 inches high and 20 feet long.
Cost of Poured Concrete Wall Installation. $9.03 per square foot (4 inch wall) (Range: $5.58 - $12.48) $15.00 per square foot (6 inch wall) (Range: $10.00 - $20.00) $64.17 per square foot (8-inch thickness) (Range: $43.33 - $85.00)