Framing calculator

Count regular stud positions across a straight wall with an end stud at each end.

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Wall length

Maximum on-center spacing

More inputs and assumptions

Extra studs for corners and openings

Answer

…

Count regular stud positions across a straight wall with an end stud at each end.

More results

Precision and calculation record

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Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.

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Formula and assumptions

Count = ceiling(length/spacing) + 1. Use one unit. This is a centerline layout estimate; openings, corners, headers, plates, loads and building-code compliance are not designed here.

Automatic precision shows numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

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Updated 2026-09-26

Using Framing calculator

Count regular stud positions across a straight wall with an end stud at each end.

Count = ceiling(length/spacing) + 1. Use one unit. This is a centerline layout estimate; openings, corners, headers, plates, loads and building-code compliance are not designed here.

Next: Board foot calculator

A worked example

Example inputs: wall length = 240, maximum on-center spacing = 16, extra studs for corners and openings = 0. Stud positions on a straight wall = 16.

Before you use the result

Count = ceiling(length/spacing) + 1. Use one unit. This is a centerline layout estimate; openings, corners, headers, plates, loads and building-code compliance are not designed here.

Example results for wall length

These examples use Maximum on-center spacing: 16; Extra studs for corners and openings: 0. They are reference calculations, not recommended settings.

Wall length	Stud positions on a straight wall
120	9
240	16
480	31

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