Home & DIY

Stud Count Calculator

Studs, plates and nails for a framed wall of any length.

Enter your values

ⓘ Live results

Results
Studs needed
31
Base studs at spacing
19
Extra for openings and corners
12
Plate stock (double top + bottom)
5 x 16 ft
Material cost
$139.50

Working

  1. 124 ft x 12 / 16 + 1 = 19, plus 12 extras

Quick answer

Studs = wall length in inches divided by spacing, plus one, plus extras for corners, T-intersections and each opening.

studs = length x 12 / spacing + 1 + extras

How to use the Stud Count Calculator

  1. 1Measure the wall length and choose the spacing your code allows.
  2. 2Count each door and window - allow king studs, jacks and cripples.
  3. 3Add two extra studs per corner or wall intersection for drywall backing.

Worked example

Using the values the calculator loads with:

Inputs

  • Wall length24 ft
  • Stud spacing16 in o.c.
  • Doors + windows2
  • Corners + intersections2
  • Cost per stud4.50 $

Results

  • Studs needed31
  • Base studs at spacing19
  • Extra for openings and corners12
  • Plate stock (double top + bottom)5 x 16 ft
  • Material cost$139.50
  1. 24 ft x 12 / 16 + 1 = 19, plus 12 extras

Frequently asked questions

Is 24 inch spacing acceptable?

Yes for many non-load-bearing and advanced-framing walls, and it saves lumber, but check your local code and use 5/8 in drywall to avoid waviness.

How many plates do I need?

One bottom plate and two top plates along the full wall length, so about three times the wall run in plate stock.

About this calculator

Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.