CurveSetHow to calculate your wall
- Enter straight wall length or the radius and arc angle of a basic curve.
- Enter the finished exposed height to derive the required whole courses.
- Review nominal placement count and add a waste percentage for ordering.
FREE RETAINING WALL PLANNING TOOL
Retaining Wall Block Quantity Calculator
Order estimates should account for block size, wall height, buried courses and extra material. Use this block calculator for a first-pass takeoff before ordering.
Use free calculatorOpen calculator in full screen ↗Worked example
A 20-foot straight wall with six courses, including one buried, requires about 93 nominal VERSA-LOK Standard placements in this estimator. With 10% extra, that becomes 103 blocks to order.
These are preliminary quantities, not a substitute for site measurements or product specifications.
Planning tip: Block counts change when you switch profiles. Confirm face width, unit height and setback against the actual product supplied.
CURVESET FIELD GUIDE
How many blocks does a curved retaining wall need?
Understand radius, height, course setback and waste with a worked 90-degree wall example. Then open its measurements in the free calculator.
Read the curved wall calculation guide ↗
What this estimate includes
Staggered starters, offsets, physical joint gaps and cuts can affect final ordering. CurveSet's mobile placement and cut tools provide a more detailed plan.
Frequently asked question
Should I order exactly the nominal placements? Usually allow for cuts, breakage and field changes; the calculator lets you choose the allowance rather than making a fixed purchasing assumption.
Need more than a first-pass estimate?
CurveSet's Android and iOS app adds S-walls, rounded U-walls, 3D views, excavation and drainage takeoffs, saved projects and installation planning. Lifetime Pro adds unlimited projects, complete printable PDFs and detailed cut and field records.
See CurveSet mobile features ↗