Retaining Wall Calculator

Estimate materials and project cost using wall length, height, access complexity, and extras, with clear equations and instant mobile results.

Inputs

Length (ft) Measure straight line distance along the wall face.

Height (ft) Use average exposed height of the wall face.

Square Feet Area = length × height; updated automatically as you type.

Access level Easy: driveway-side access; Normal: typical side yard; Complicated: narrow or limited access.

Replace existing wall

Apply +5% to project cost

Covers demo and disposal for a typical small wall.

Extensive grading needed

Add $2,000

Significant regrading or contouring beyond standard prep.

Excess fill needed

Add $4,000

Large volume of imported backfill or hauling required.

Blocks per square foot uses VERSA-LOK Standard face area of 0.667 sq ft (≈1.5 blocks per sq ft). Two pins per block are typical.

Cap count is based on ~14″ cap length along the face. Round up units. Square feet equals wall length multiplied by height.

Cost is a ballpark per-sq-ft rate by access level, then add selected extras. Actual quotes vary by site conditions and region.