NKBA Kitchen Work Triangle (13–26 ft Rule), Island Clearance & Cabinet Cost Calculator

Audit Sink–Range–Fridge work triangle perimeter (13–26 ft) and cabinet/countertop budget.

Kitchen Work Triangle Perimeter
20 ft (NKBA Compliant)
Enclosed Work Triangle Area 18.71 sq ft
Estimated Cabinetry Budget 11,760 USD
Countertop Area (@ 25.5" Depth) 59.5 sq ft
Inputs
⚡ Scenarios:
ft
Center-to-center distance between Sink and Cooking Range (4 to 9 ft target).
ft
Center-to-center distance between Range and Refrigerator (4 to 9 ft target).
ft
Center-to-center distance between Refrigerator and Sink (4 to 9 ft target).
linear ft
Total base + upper cabinet linear footage.
USD/ft
Installed cabinet + hardware cost per linear foot.
Results & Graph
Kitchen Work Triangle Perimeter
20 ft (NKBA Compliant)
Enclosed Work Triangle Area
18.71 sq ft
Estimated Cabinetry Budget
11,760 USD
Countertop Area (@ 25.5" Depth)
59.5 sq ft

Kitchen Work Triangle Perimeter

Graph 1 • Kitchen Triangle & Island Sizing • Domain Architecture & Live Telemetry Maps Sink To Range Distance Ft, Range To Fridge Distance Ft, Fridge To Sink Distance Ft through Kitchen Triangle & Island Sizing Formula.
NKBA Kitchen Work Triangle (13–26 ft Rule), Island Clearance & Cabinet Cost Calculator • Custom Domain Schematic (Finish Carpentry & Interior Trim) Takeoff Dim: sinkToRa × rangeToF (Kitchen Triangle & Isl) Sink To Range Distance Ft: 6.50 ft • Range To Fridge Distance Ft: 7.50 ft KITCHEN WORK TRIANGLE PERI 20 ft (NKBA Complian • Enclosed Work Triangle: 18.71 sq ft • Estimated Cabinetry Bu: 11,760 USD Eq: Perimeter = d_Sink_Range + d_Ran
Graph 2 • Kitchen Work Triangle Perimeter Across Sink To Range Distance Ft Sweep (40% → 160%) Evaluates Perimeter = d_Sink_Range + d_Range_Fridge + d_Fridge_Sink (Target: 13 to across 7 operating points (current input highlighted).
0 ft (NK 13.14 ft (NK 26.29 ft (NK 16.10 2.60ft 17.40 3.90ft 18.70 5.20ft 20 6.50ft 21.30 7.80ft 22.60 9.10ft 23.90 10.40ft
Graph 3 • Joint Sensitivity: Sink To Range Distance Ft × Range To Fridge Distance Ft Compares Kitchen Work Triangle Perimeter when Range To Fridge Distance Ft is shifted +25% (solid) vs. −25% (dashed).
0 ft (NK 13.11 ft (NK 26.21 ft (NK --- Range To Fridge Distance Ft @ 75% 19.93 -30% 20.90 -15% 21.88 +0% 22.85 +15% 23.83 +30%
Summary: Work triangle legs (6.5' + 7.5' + 6') total 20 ft (passes NKBA 13–26 ft & 4–9 ft leg guidelines), enclosing 18.7 sq ft; 28 linear ft of cabinetry costs $11,760.
Summary: Work triangle legs (6.5' + 7.5' + 6') total 20 ft (passes NKBA 13–26 ft & 4–9 ft leg guidelines), enclosing 18.7 sq ft; 28 linear ft of cabinetry costs $11,760.
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Interactive chart & math engine powered by CalculatorGraph

Formula & Mathematical Methodology: Kitchen Triangle & Island Sizing Formula

Perimeter = dSinkRange + dRangeFridge + dFridgeSink (Target: 13 to 26 ft, each leg 4 to 9 ft)
Perimeter = d_Sink_Range + d_Range_Fridge + d_Fridge_Sink (Target: 13 to 26 ft, each leg 4 to 9 ft)
  • sinkToRangeDistanceFt: Sink To Range Distance Ft (ft)
  • rangeToFridgeDistanceFt: Range To Fridge Distance Ft (ft)
  • fridgeToSinkDistanceFt: Fridge To Sink Distance Ft (ft)
  • totalCabinetLinearFeet: Total Cabinet Linear Feet (linear ft)
  • installedCostPerLinearFoot: Installed Cost Per Linear Foot (USD/ft)

Rounding: Engineering outputs round to 2–3 decimal places; discrete material bag/unit counts round up via ceiling.

Worked Example: Engineering Scenario: Kitchen Triangle & Island Sizing

Audit Sink–Range–Fridge work triangle perimeter (13–26 ft) and cabinet/countertop budget.

  1. Enter your system dimensions, electrical/RF ratings, or environmental conditions.
  2. Evaluate the governing equation: Perimeter = d_Sink_Range + d_Range_Fridge + d_Fridge_Sink (Target: 13 to 26 ft, each leg 4 to 9 ft).
  3. Inspect the primary design output, supporting allowances, and 3 SVG schematics.
Result: Computes Kitchen Triangle & Island Sizing via Perimeter = d_Sink_Range + d_Range_Fridge + d_Fridge_Sink (Target: 13 to 26 ft, each leg 4 to 9 ft).

Frequently Asked Questions

How does the NKBA Kitchen Work Triangle (13–26 ft Rule), Island Clearance & Cabinet Cost Calculator calculate results?

It evaluates Perimeter = d_Sink_Range + d_Range_Fridge + d_Fridge_Sink (Target: 13 to 26 ft, each leg 4 to 9 ft) directly in your browser and updates three custom SVG visualizations in real time.

Can I use Goal Seek to solve backwards for a required dimension or rating?

Yes. Click "🎯 Goal Seek" in the results toolbar to solve backwards for any numeric input parameter.

Does this engineering calculator work offline?

Yes. All calculations run 100% locally in your browser and work offline via the CalculatorGraph PWA.

Construction & Home · Finish Carpentry & Interior Trim

NKBA Kitchen Work Triangle (13–26 ft Rule), Island Clearance & Cabinet Cost Calculator: inputs, method, and how to read the result

Audit Sink–Range–Fridge work triangle perimeter (13–26 ft) and cabinet/countertop budget.

Choose inputs for the case you are checking

The defaults are illustrative. Replace them with values for your case and keep the units shown beside each field.

  • Sink To Range Distance Ft: Center-to-center distance between Sink and Cooking Range (4 to 9 ft target).
  • Range To Fridge Distance Ft: Center-to-center distance between Range and Refrigerator (4 to 9 ft target).
  • Fridge To Sink Distance Ft: Center-to-center distance between Refrigerator and Sink (4 to 9 ft target).
  • Total Cabinet Linear Feet: Total base + upper cabinet linear footage.

What the calculation includes

With the default values shown, Kitchen Work Triangle Perimeter is 20 ft (NKBA Compliant). The calculation follows Kitchen Triangle & Island Sizing Formula; the formula and variable definitions above show how the inputs combine.

One-input check: With the other defaults held constant, changing Sink To Range Distance Ft from 6.5 ft to 7.15 ft changes Kitchen Work Triangle Perimeter from 20 ft (NKBA Compliant) to 20.65 ft (NKBA Compliant). This is a comparison inside the calculator's stated model, not a prediction.

Where to use caution

  • Uses standard NREL, IEEE, ASHRAE, and IRC design equations.
  • Verify final structural, electrical, and mechanical specifications against local building codes.

Scope: Global Engineering & Building Code Standard Check the assumptions and limitations against your situation before relying on the estimate.

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