C33 Job-Specific Estimating: Material and Labor Calculations 5

Question 1

When estimating paint for a room with 8-ft ceilings, a contractor uses the perimeter method. The room is 14 ft × 18 ft. What is the gross wall area before deducting openings?

Accepted Answer

512 sq ft

Answer

Perimeter = (14 + 18) × 2 = 64 ft; gross wall area = 64 × 8 ft ceiling height = 512 sq ft.

Question 2

A painting contractor adds a 10% waste factor when ordering materials. If the calculated need is 22 gallons of paint, how many gallons should be ordered and what is the cost at $38 per gallon?

Accepted Answer

25 gallons / $950

Answer

22 × 1.10 = 24.2 gallons, rounded up to 25 gallons; 25 × $38 = $950.

Question 3

A C-33 contractor is estimating a fence painting job. The fence is 180 linear feet, 6 ft tall, and must be painted on both sides. Coverage is 300 sq ft per gallon. How many gallons are needed?

Accepted Answer

7.2 gallons (round up to 8)

Answer

Both sides: 180 × 6 × 2 = 2,160 sq ft; 2,160 ÷ 300 = 7.2 gallons, rounded up to 8 gallons.

Question 4

An estimator calculates that a job requires 40 labor hours. If the contractor's burden rate (taxes, insurance, benefits) is 32% on top of the $50/hr wage, what is the total loaded labor cost?

Accepted Answer

$2,640

Answer

Loaded rate: $50 × 1.32 = $66/hr; total: 40 × $66 = $2,640.

Question 5

A painting contractor is bidding a job with $4,500 in materials and $6,800 in labor. If the contractor applies 18% overhead to the combined direct costs, what is the overhead amount?

Accepted Answer

$2,034

Answer

Combined direct costs: $4,500 + $6,800 = $11,300; overhead: $11,300 × 0.18 = $2,034.

C33 - C-33 California Painting Contractor License Practice Test

C33 - C-33 California Painting Contractor License Practice Test

C33 Job-Specific Estimating: Material and Labor Calculations 5