CSLB C-27 Landscaping ContractorPlanning and EstimatingEasy
A C-27 contractor is estimating the cost for a new hardscaping project. The project requires 25 cubic yards of decomposed granite (DG). The supplier quotes DG at $45 per cubic yard, plus a delivery fee of $150 per truckload. Each truckload can carry up to 10 cubic yards. What is the total estimated cost for the decomposed granite, including delivery?
- A$1,350
- B$1,425
- C$1,575
- D$1,125
Show answer & explanationAnswer & explanation
Correct answer: B. $1,425
To calculate the total cost, first determine the number of truckloads needed, then calculate material cost and total delivery cost, and finally sum them. 25 cubic yards / 10 cubic yards/load = 2.5 loads, so 3 loads are needed. Material cost = 25 * $45 = $1,125. Delivery cost = 3 * $150 = $450. Total cost = $1,125 + $450 = $1,575.
Why the other options are wrong
- A. This incorrectly calculates the material cost or delivery fee.
- C. This is the correct answer. The calculation is 25 cubic yards * $45/cubic yard = $1,125 (material cost). 25 cubic yards / 10 cubic yards per truckload = 2.5 truckloads, rounded up to 3 truckloads. 3 truckloads * $150/truckload = $450 (delivery cost). Total cost = $1,125 + $450 = $1,575.
- D. This only accounts for the material cost, not the delivery.
Total Material & Delivery Cost
The sum of the direct cost of materials and the associated transportation fees, often requiring calculation of discrete delivery units.
- Material cost is volume/unit based.
- Delivery fees are often per truckload or specific unit, not linear with volume.
- Loads must be rounded up to the nearest whole number.
Memory trick: Don't forget the 'Truckload Tally' for delivery fees. Material first, then loads, then add!