Wall Framing Calculator

Count studs and plates for a framed wall, including extra studs at openings and corners.

%

Studs

27

  • Studs at spacing (before extras)16
  • Plate material60 linear ft
  • Plates in 16 ft lengths4 boards

Estimates only. Round up when you order, and confirm structural details with your local building code.

How to use it

  1. Enter the wall length and stud spacing.
  2. Enter the number of doors/windows and corners.
  3. Choose single or double top plate.

The formula

Studs = wall length (in) ÷ spacing + 1 + 2 per opening + 2 per corner

Plates = wall length × number of plates

Worked example

Wall length20 ft
Stud spacing16 in o.c.
Doors + windows2
Corners / wall intersections2
PlatesDouble top + bottom (3)
Extra studs10 %

Result

Studs27
Studs at spacing (before extras)16
Plate material60 linear ft
Plates in 16 ft lengths4 boards

Tips before you order

  • Headers, cripples and blocking are extra — add them from your plan.
  • Buy a few spare studs for crowned or twisted pieces.

Questions

How many studs for a 20 ft wall at 16 in on center?

16 studs at spacing, plus extras for openings and corners.