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Calcimator

Surface Preparation Calculator

Calculate surface preparation costs, blast media quantities, labor hours, and total cost for hand tool, power tool, or abrasive blast methods.

Inputs

sq ft
lb/sq ft
$
$/hr

Results

Blast Media Needed

10,000 lb

≈ 9 grand pianos

Labor Hours

8 hrs

Total Prep Cost

$2,380.00

≈ 18 pairs of sneakers

Media Weight5 tons
Media Cost$1,500.00
How to Use This Calculator
  1. Enter the total surface area (sq ft) requiring preparation.
  2. Select the preparation method — Hand Tool, Power Tool, or Abrasive Blast.
  3. Input blast media consumption rate (lb/sq ft) and unit cost per pound.
  4. Enter your crew's labor rate ($/hr).
  5. Review Media Needed (lb), Labor Hours, Media Cost, and Total Prep Cost.

How the result changes with Surface Area

Surface AreaBlast Media NeededLabor HoursTotal Prep Cost
10,00050,000 lb40 hrs$11,900.00
35,000175,000 lb140 hrs$41,650.00
65,000325,000 lb260 hrs$77,350.00
90,000450,000 lb360 hrs$107,100.00

What each input means

Surface Area
Total surface area requiring preparation.
Preparation Method
Surface preparation method per SSPC standards.
Media Consumption Rate
Blast media consumption per square foot (typically 3-8 lb/sq ft).
Media Cost
Cost per pound of blast media.
Labor Rate
Hourly labor rate for surface preparation crew.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Surface Area = 2000, Preparation Method = 3, Media Consumption Rate = 5, Media Cost = 0.15 = 5 input(s) provided
  2. Calculate Blast Media Needed
    Blast Media Needed
    10000 = 10000
  3. Calculate Labor Hours
    Labor Hours
    8 = 8
  4. Calculate Total Prep Cost
    Total Prep Cost
    2380 = $2,380
  5. Calculate Media Weight
    Media Weight
    5 = 5
  6. Calculate Media Cost
    Media Cost
    1500 = $1,500

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