The Framing Calculator tells you how many vertical supports (studs) you need to frame a wall — a core task in any new construction or renovation project. Enter your wall length and on-center spacing (the gap between each stud, typically 16 or 24 inches) to get the total studs needed. Add a price per stud and waste percentage to also see your adjusted stud count and total material cost.
Studs Needed
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Studs with Waste
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Total Cost
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The number of studs needed equals the wall length divided by the on-center spacing, plus one. For example, a 16-foot wall with 16-inch spacing needs 13 studs.
On-center spacing is the distance measured from the center of one stud to the center of the next stud. Common spacing is 16 inches, 19.2 inches, or 24 inches.
For 2x4 framing, use 3.5-inch framing nails or 16d common nails. For 2x6 framing, use 3.5-inch nails for plates and 2.5-3 inch nails for typical connections.
Framing calculators are very accurate when correct dimensions and spacing are input. However, always add 10-15% waste for cuts, damaged materials, and installation errors.
16 inches on-center is the most common stud spacing for residential construction. It provides adequate support while being economical with materials.
Yes, always include 10-15% waste to account for cuts, damaged lumber, and installation mistakes. This ensures you have enough materials to complete your project.
2x4 framing is standard for most residential walls, while 2x6 is used for exterior walls requiring more insulation or in areas with higher structural requirements.