Interior Design Math

Calculating Paint Calculate the square footage then divide by 350:(length + length + width + width of the space) x height of wall = square footage (sq. ft.)/ 350 = # of gallons of paint Example: 12'X13' Bathroom with 9ft ceiling height:12 + 12 + 13 + 13 = 50 sq. ft. x 9 = 450 / 350 = 1.285 or 1.3 gallons (You would buy 2 gallons of paint.) How much paint is needed? Calculate the number of gallons of paint needed for each room if the ceiling height is 9 feet. Remember to round to the next full gallon. So if the mathematical solution is 2.3 gallons, the number of gallons needed is 3, because you buy paint in full gallon containers. Room Dimensions Gallons of Paint Bathroom 8'x11' 1 Kitchen 11'x17' 2 Bedroom 17'x14' 2 How much would it cost to paint a room that measures 24'x31' with 9ft ceilings, if paint costs $23.49 per gallon after tax? $3 $23.49 $70.47 $35.24 Calculating Wallpaper Use the formula below to calculate straight match wallpaper rolls needed for a space:(length + length + width + width) x height of walls / 36 sq. feet= # of single rollsTypically, wallpaper is packaged in double rolls (but not always).Remember to ALWAYS round up when figuring wallpaper because it is better to have more than you need, than not enough.Example:Room measures 14’ x 17’ with 9' ceilings(14 + 14 + 17 + 17=62) x 9= 558 / 36 = 15.5 or 16 single rolls (16 s or 8 double rolls (8 dbl How many rolls for... Using the formula given, and 9' ceiling heights, determine the number of single and double rolls needed for each room. Room Dimensions Single Rolls Double Rolls Living Room 21'x18' 20 10 Bedroom 12'x14' 13 7 Master Bath 12'x10' 11 6 Solve the problem to determine the cost of the wallpaper. The cost to cover a 24'x15' great room that has 9' ceilings with wallpaper that costs $21.99 per double roll is $219.90. Calculating Carpet and Sheet Vinyl Carpet and sheet vinyl are typically priced by the square yard.To calculate the amount of carpet or sheet vinyl needed:Length x width in feet (square footage of floor space) / 9 (# of feet in a square yard) = square yardage (sq. yds.)Remember to ALWAYS round up when figuring flooring to account for waste and future repairs.Example:Room is 14’ x 17’: 14 x 17 = 238 = 26.444 round up to 27 sq. yds. How Many Square Yards are Needed? Use the formula above to determine how many square yards are needed to cover each room. Room Dimensions Square Yards Needed Living Room 21'x18' 42 Kitchen 10'x13' 15 Bathroom 10'x8' 9 Solve the problem to determine the cost of vinyl sheet flooring. The vinyl sheet flooring Caleb wants to use for his kitchen floor costs $12.99 per square yard. The kitchen is 11'x10'. Therefore, Caleb's cost for the flooring (before tax) is going to be $168.87. Other Types of Flooring (LVP Most flooring that isn't sold on large rolls is sold based on a price per square foot.Length x Width of the space = square footage (sq. ft.)Example:Room is 12'x13'12x13=156 sq. ft. How Many Square Feet? Use the formula above to determine the square footage needed for each room. Room Dimensions Sq. Ft. Foyer 10'x16' 160 Bathroom 8'x11' 88 Master Bath 12'x15' 180 Solve the problem to find out the flooring cost. Gabby is buying new wood flooring for her 24'x31' living room. The flooring she likes is priced at $3.49 per square foot. Gabby will need to pay $2,596.56for her new floor.