Trench Fill Calculator
Models trench as a long narrow box.
Step 1: Units
Step 2
Enter project measurements
Use decimals if needed (e.g. 3.5).
Step 3
How to use this calculator
Trench width is bottom width; depth is from grade to invert or fill height as needed.
What the math is doing
Volume = length × width × depth.
Frequently asked questions
Bedding envelope?
Subtract pipe zone if modeled separately.
Shoring?
Does not change net fill volume.
Compaction?
Specify lifts on site.
Warning tape?
Linear feet accessory.