C33 Job-Specific Estimating: Material and Labor Calculations 2

Question 1

A C-33 contractor must paint 2,400 sq ft of smooth drywall with two coats. The paint covers 350 sq ft per gallon. Accounting for 10% waste, how many gallons are needed?

Accepted Answer

15 gallons

Answer

14 gallons

Answer

16 gallons

Answer

18 gallons

Question 2

When estimating labor for exterior painting, which surface type typically requires the MOST labor hours per 100 square feet?

Accepted Answer

Ornamental wrought iron

Answer

Smooth stucco

Answer

Clapboard siding

Answer

Flat concrete block

Question 3

A bid requires painting 80 windows (standard double-hung, 3x5 ft). Industry standard production rate is 4 windows per hour for brush and roller. How many labor hours should be estimated?

Accepted Answer

20 hours

Answer

10 hours

Answer

15 hours

Answer

25 hours

Question 4

A C-33 contractor is pricing a commercial repaint. The overhead rate is 45% and desired profit margin is 12%. If direct costs are $22,000, what is the correct bid price?

Accepted Answer

$36,250

Answer

$31,900

Answer

$35,420

Answer

$36,818

Question 5

When estimating paint for a room with standard 8-foot ceilings, which shortcut formula gives approximate wall area?

Accepted Answer

Room perimeter x ceiling height, minus 20 sq ft per door and 15 sq ft per window

Answer

Floor area x 4

Answer

Length x width x 2

Answer

Room perimeter x 10

Question 6

A C-33 contractor uses an airless sprayer rated at 0.6 gallons per minute. At 70% transfer efficiency, how many gallons of paint are actually deposited on the surface per hour?

Accepted Answer

25.2 gallons

Answer

18 gallons

Answer

36 gallons

Answer

42 gallons