Category: How to Estimate Excavation and Backfill

So, the formula is: Ab = Wb * Lb, where Wb and Lb are the width and length of the bottom of the excavation. At = Wt * Lt, where Wt and Lt are the width and length of the top of the excavation. Excavation Costs A typical residential excavation job runs between $1,449 and $5,313 with […]

Backfill for Figure Backfill volume = excavation volume – footing volume – wall volume. … (Note that only the portion of the wall that is in the trench is deducted, so the height of wall in the trench is the average trench depth minus 2′-0” for the footing: 6′-0” – 2′-0” is 4′-0”) Backfill volume […]