Advanced estimate

Step 2 of 2 · Materials

Measure the excavation or fill

Measure each trench, pit or fill zone, then apply the factor supplied for bulking, shrinkage, handling or compaction. Your saved measurements and defaults are already in place; change anything that is different on this job.

Measurements

Measurements

Excavation

These values stay read-only on the material page.

Change measurements or openings
Length
16.4 ft
Width
3.28 ft
Depth
3.28 ft
Repeated zones
1

Using saved defaults

Standard sizes, ratios, wastage and rates are kept in one place instead of repeated on every item.

5% handling allowance
See the arithmetic behind this estimate

The method, with an example

Formula

Measured volume = length × width × depth × quantity. Adjusted volume = measured volume × user-entered factor.

Worked example

A 5 m × 1 m × 1 m trench is 5 m³ measured volume before any bulking, shrinkage or handling factor.

What this result assumes

  • Each repeated zone has the same dimensions.
  • The volume factor is supplied for the applicable soil and operation.

What it does not cover

  • Side slopes, shoring, groundwater, disposal distance and soil classification are not determined by the calculator.

Questions that come up on site

What belongs in the volume factor?

Use a value provided for the project’s soil and operation. Leave 1.0 when no adjustment is being applied.

Will this tell me a safe excavation slope?

No. Excavation safety and shoring require site-specific professional decisions.