Decking Ratio Calculator
A free, browser-based calculator. Runs entirely in your browser — no sign up, nothing stored.
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Enter Values
Enter your values and press Calculate to see results.
How to use this calculator
- Enter the hole depth and the total charge length.
- Press Calculate.
- Read the charge ratio and the stemming/air length.
How it works
Charge ratio = charged length ÷ total hole depth; the remainder is stemming and any air decks.
Worked example
10 m hole, 7 m charge. 70% charged, 3 m stemming/air.
Frequently asked questions
What is decking?
Splitting the explosive column with air or inert decks to control energy distribution, vibration and fragmentation.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.