MEASURED QUANTITY SENSITIVITY

Thickened edge concrete — total edge thickness scenarios.

How does changing total edge thickness affect thickened edge concrete when the other inputs stay fixed?

What this decision changes

This measured quantity or supplied dimension enters the method on its stated unit basis. Other inputs stay fixed so its effect can be separated from net deductions, stock constraints or purchase rounding. Method basis: The main slab covers the whole footprint. Only thickness beyond that slab is added over the perimeter band; all dimensions must come from an existing plan.

The focus is specified total edge thickness. All other shared inputs remain fixed for each evaluated range.

V = LWT + [LW − (L−2b)(W−2b)](Te−T)Thickened Edge Concrete Calculator

Evaluate your supplied alternatives

Start with your measured plan and selected product data. The initial values and range are illustrative. Each scenario changes only specified total edge thickness; the other entered values stay fixed.

Display units

Measured plan and product inputs

Outside length

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Outside width

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Main slab thickness

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Specified edge band width

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Specified total edge thickness

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Purchase allowance

Shortcuts only; choose your own allowance above.

Where to get this value

Enter your own allowance. Presets are input shortcuts, not a construction recommendation.

Supplied comparison range for specified total edge thickness

Lower supplied comparison value

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Upper supplied comparison value

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Nine evenly spaced values are evaluated. Whole counts are rounded to distinct integer scenarios. Values between the listed samples are not calculated.

9 evaluated scenarios

Baseline: Concrete order volume — 1.728 m³. Rejected combinations remain visible below.

Quantity to plot

Each bar is one actual calculated concrete order volume. Horizontal values: specified total edge thickness in mm.

Specified total edge thickness	Concrete order volume	Change from baseline	Use this scenario
180 mm	1.4112 m³	-0.3168 m³	Open in calculator Exact quantity breakdown Main slab 1.2 m³ Edge increment, corners counted once 0.2112 m³
217.5 mm	1.5102 m³	-0.2178 m³	Open in calculator Exact quantity breakdown Main slab 1.2 m³ Edge increment, corners counted once 0.3102 m³
255 mm	1.6092 m³	-0.1188 m³	Open in calculator Exact quantity breakdown Main slab 1.2 m³ Edge increment, corners counted once 0.4092 m³
292.5 mm	1.7082 m³	-0.0198 m³	Open in calculator Exact quantity breakdown Main slab 1.2 m³ Edge increment, corners counted once 0.5082 m³
330 mm	1.8072 m³	0.0792 m³	Open in calculator Exact quantity breakdown Main slab 1.2 m³ Edge increment, corners counted once 0.6072 m³
367.5 mm	1.9062 m³	0.1782 m³	Open in calculator Exact quantity breakdown Main slab 1.2 m³ Edge increment, corners counted once 0.7062 m³
405 mm	2.0052 m³	0.2772 m³	Open in calculator Exact quantity breakdown Main slab 1.2 m³ Edge increment, corners counted once 0.8052 m³
442.5 mm	2.1042 m³	0.3762 m³	Open in calculator Exact quantity breakdown Main slab 1.2 m³ Edge increment, corners counted once 0.9042 m³
480 mm	2.2032 m³	0.4752 m³	Open in calculator Exact quantity breakdown Main slab 1.2 m³ Edge increment, corners counted once 1.0032 m³

Read the evaluated results

Read calculated demand, whole purchases and exact detail lines separately. This specific input may change quantity continuously, cross a purchase step or make the stated geometry or stock fit invalid.

Replace every illustrative baseline measurement and selected product value with the inputs for your actual task.
Enter a comparison range on the focused input's stated unit and quantity basis.
Review rejected combinations and use the exact detail lines to distinguish measured demand from whole purchases.
Open an evaluated scenario in the full calculator to save its original inputs and quantity breakdown to a browser material project.

Keep the comparison within scope

Compare measurements or already specified alternatives. Quantity sensitivity does not establish material suitability or construction requirements.

The main slab covers the whole footprint. Only thickness beyond that slab is added over the perimeter band; all dimensions must come from an existing plan.

Dimensions, quantities, prices, timing and product properties are supplied by you. This tool does not select construction specifications or assess structural, electrical or hydraulic suitability.

Only the listed samples are evaluated. Intermediate values, alternate constraints and global cutting optimality are not inferred from the graph.

Continue with this quantity method

Thickened Edge Concrete Calculator

Other independent input decisions

Read the measurement and purchase guides

Why adding four edge strips can overcount slab corners

Quantity method and illustrative scenarios checked 6 October 2026. Methods and scope.