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MEASURE ONCE. PLAN YOUR PURCHASE.

Wall Stud Quantity calculator.

Count studs in uninterrupted spans and add the opening and corner details from your plan.

LUMBER

Your inputs

Use measurements from your plan and properties from your chosen product. Any prefilled values are illustrative.

Where to get this value

Copy this specification from your supplied design or product documentation. This tool does not select spacing, fixing patterns or structural requirements.

Where to get this value

Measure only the area, length or quantity to deduct, in the unit shown. Keep this consistent with the surface being calculated.

Shortcuts only; choose your own allowance above.
Where to get this value

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

Uninterrupted span 1
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.

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.

Quantity and planning estimate
YOUR ESTIMATE
∑

A clear estimate starts here.

Enter your dimensions and product details to see the quantity and purchase breakdown.

CONTINUE YOUR PLAN

Find the next material.

Keep the quantity, then use another tool for the remaining parts of your purchase.

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Formula and assumptions
BEHIND THE NUMBERS

How this calculation works.

Split a wall at openings into uninterrupted spans. Supply the additional jamb/corner counts from your own design and explicitly deduct any shared ends.

Studs = Σ(ceil(span / spacing) + 1) + extras − shared endsCalculated with normalised units

A worked example

Illustrative inputs only. Product properties and design dimensions are not recommendations for your project.

Specified maximum spacing
500 mm
Additional opening studs
4
Additional corner studs
2
Duplicated span-end studs to deduct
1
Waste allowance
0 %
Uninterrupted span 1
Span length
4 m
Specified stud length
2.4 m
Uninterrupted span 2
Span length
2 m
Specified stud length
2.4 m

Studs to purchase: 19 studs

Before you purchase

Use dimensions from your plan and properties from your chosen product. Any design spacing, section or fixing pattern must already be specified.

Header sizing, required stud count and wall capacity are outside this calculation.

Method: dimensional arithmetic and user-supplied specifications. Software checks: 2026-10-04. Calculation and review policy.

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