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Stud Count Calculator

Estimate wall studs from wall length, on-center spacing, corners, openings, and waste.

Reviewed
2026-09-05
Units
US + metric

Calculated result / live

15 studs

Order 15 studs for 10.00 ft of wall, including 10% waste.

16.0 in on-center spacing, 1 opening, and 2 corner/end framing members.

Input panel

Project measurements

Secondary quantities
Field studs9
Framing before waste13
Ordered studs15

Calculation trace

Formula with your numbers

⌈10.00 ft × 12 ÷ 16.0 in⌉ + 1 + (1 × 2) + 2 = 13; × (1 + 10 ÷ 100) = 15

15 studs
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What this stud count calculator calculates

A 16 ft wall at 16 in OC has 13 field positions before adding the two jamb members for an opening and corner framing.

Formula

Ceiling(wall length × 12 ÷ spacing) + 1 + opening jambs + corner/end members, then add waste.

Worked example

For 16 ft, 16 in OC, one opening, two corners, and 10% waste, 17 base studs rounds to 19 ordered studs.

Ordering decision

Add king studs, cripples, plates, backing, and blocking from the actual wall layout.

The page cites the applicable Uzi Tools reference table beside the calculator. Product labels, current editions, local code, and a licensed professional govern structural, electrical, and life-safety work.

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How to use it

  1. Enter the measured dimensions and keep the displayed units beside each field.
  2. Review the wall studs at on-center spacing result and the substituted formula before ordering.
  3. Adjust waste for the layout, cut pattern, product package, and site conditions.
  4. Copy or print the material list, then verify the cited product data and local requirements.
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Wall studs at on-center spacing

This stud count calculator estimates field studs, opening framing, corner members, and a cut allowance from wall length and spacing. It is a takeoff, not a complete framing schedule.

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Limits and professional review

Measurements, product yield, waste, moisture, and site conditions can change the order quantity. Local code and a licensed professional govern structural and electrical work.

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Data sources

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Related calculations

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Same-project tools

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Questions specific to this estimate