The cost to build a four bedroom house depends on the area where you live and the material you use. On average, a four bedroom house will cost between $150,000 and $200,000. + 13 others found this useful.
You can not convert units with different dimensions. Square yards measure area(2 Dimensions) whereas linea feets(you are meaning in one dimensions). Only what you can do is convert yards into feet and square yards to square feet. How you can use conversion factors between the two units to accomplish that. 1 yard=3 feets. 1 square yard =9 square feet.
First convert 400 sq ft x 5 inches to cubic ft.   Since there are 12 inches in a foot that is 400 x 5/12 = 166.7 cubic feet.   There are 3 feet in a yard and 3x3x3 = 27 â¦cubic feet in a cubic yard.   Therefore cubic yards = 166.7/27 = 6.2 cubic yards.