The number of studs needed for a wall depends on various factors, including the spacing between studs and the type of framing you’re using. In standard construction with 16-inch on-center spacing, you would generally need: 10-foot wall: 9 studs, 12-foot wall: 10 studs, 14-foot wall: 12 studs,16-foot wall: 13 studs, 20-foot wall: 16 studs, and 24-foot wall: 29 studs

The number of studs in a 10-foot wall depends on the spacing between the studs. Standard spacing is 16 or 24 inches on center. If you use 16 inches on center, there would be approximately 9 studs in a 10-foot wall.

A wall stud is a vertical repetitive framing member made of wood or metals in a building’s wall of smaller cross section than a post. It is a fundamental element in frame wooden framed structure.

Different size, species and grade of wood or lumber such as 2×4, 2×6 & 2×8 are used in formation of exterior or interior partition wall. It has smaller cross section of wood than post or column. It may be load bearing or non bearing.

Studs form exterior or partition walls and may carry vertical structural loads to the foundation or be non load-bearing, such as in partition walls, which only separate spaces at 16″ or either 24 inches apart.

Studs hold in place of the windows, doors, interior finish, exterior sheathing or siding, insulation and utilities and help give shape to a building. Studs run from sill plate or bottom plate to wall or top plate. In modern construction, technology is getting advance, studs are anchored to the plates in a way, such as using fasteners, to prevent the building from being lifted off the foundation by severe wind or earthquake.

A stud wall comprises a frame of wood or metal studs secured to the floor, ceiling and walls, which is then covered with plasterboard. When you’ve decorated your new wall, it will look like an integral part of your one or two floor house.

Two studs are always spaced either of 16″ or 24 inches on-center measured from center to center along the wall and run between the floor and ceiling. Drywall or plaster walls attaches to the edge of the studs. Thus, standard or average distance between two wall stud is either of 16″ or 24″ apart.

**How many studs do i need for a 10′, 12′, 14′, 16′, 20′ & 24 foot wall**

How many studs do i need for wall is dependent on the location, application and need of the shed. Typical sheds are built with 2×4 studs, which are spaced at 16″ on center and exterior wall with 2×6 studs which are spaced at 16″OC. This would be acceptable for most locations provided there is nothing else being done to it. Some places will require it to be made to handle specific loads. For example, if it is high in the mountains, it will have to be built to handle a higher snow load, so it may need to have 2×6 studs.

**How many studs do i need**

To calculate the number of studs you will need for a wall section based on studs spacing, multiply the total wall length in feet by 0.75 (for 16-inch on-center stud spacing). Add three studs for each 90-degree corner. Add four studs for each 45-degree corner. Add two studs for each wall intersection (where another wall abuts the wall you are estimating). **Formula for Number of studs needed = (Wall length / On-Center Spacing)+ 1.**

Calculate the number of studs needed for a wall section based on wall length measured in feet and inches and stud spacing which will be either 16″OC or 24″OC.

**Calculate the Studs**

Determine the number of studs needed by starting with a quick calculation for the general studs and adding studs for specific wall:

1) Convert the wall length in feet to wall length in inches by multiplying with 12

2) Divide this wall length in inches by the 16″ on-center stud spacing

3) And add one more stud

4) Multiply the total count by 1.15 to add 15 percent (%) for waste.

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**How many studs per foot of wall**

If you use 16 inches on center, there would be approximately 0.75 studs per foot of wall. If you want to calculate the number of Studs required for wall multiply the total wall length in feet by 0.75 (for 16-inch on-center stud spacing). Add three studs for each 90-degree corner. Add four studs for each 45-degree corner. Add two studs for each wall intersection (where another wall abuts the wall you are estimating).

**How to figure out how many studs do i need**

There is a straight forward calculation, convert the wall length in feet to wall length in inches by multiplying with 12, divide this wall length in inches by the 16″ on-center stud spacing, add one more stud, and multiply the total count by 1.15 to add 15 percent (%) for waste.

**For example calculation**:- if your wall length is 24 feet and studs spacing 16″ OC, 1) convert the wall length to inches = 24 ×12 = 288, 2) Divide 288 inches by the stud spacing of 16 inches = 288÷16 = 18, 3) and add one more to the result = 18+1 = 19, 4) and multiply the result with 1.15 to get the stud count = 19× 1.15 = 21.85, rounding it equal to 22, thus it will take 19 pieces of 2×6 studs to frame a 24 foot wall with 16 inches on centers, stud placement.

Consider tacking a few extra studs onto your final number. Often, there can be unreliable or poor-quality studs mixed in with your order, and having extras will prevent any delays if you do find a bad stud in your bunch.

In general, you would need about 9 pieces of 2x4s vertical studs for a 10-foot wall, while you would need about 10 pieces of 2x4s vertical studs for a 12-foot wall. Likewise, you would need about 13 pieces of 2x4s vertical studs for a 16-foot wall, while you would need about 16 pieces of 2x4s vertical studs for a 20-foot wall. In addition, you would need about 19 pieces of 2x4s vertical studs for a 24-foot wall.

If you are thinking about how many studs you need to install in a wall length of about 10, 12, 14, 15 or 16 feet, then you are required to go by the following table

**How many studs do i need for a 10 foot wall**.

There would be approximately **9-11 2×4 vertical studs** in a 10 foot wall. Typically for a 10 foot wall, you will need approximately **9 to 11** number of 2×4 vertical studs which spaced 16″ inches on-center. Maths calculation, 1) 10×12 = 120″, 2) 120÷16 = 7.5, rounded to 8, 3) 8+1 = 9, 4) 9×1.15 = 10.35, rounded to 11, thus it will take 9 to 11 number of 2×4 studs to frame a 10 foot wall with 16 inches on centers, stud placement.

**How many studs do i need for a 11 foot wall**

There would be approximately **10-12 2×4 vertical studs** in a 11 foot wall. Typically, for a 11 foot wall, you will need approximately **10 to 12** number of 2×4 vertical studs which spaced 16″ inches on-center. Maths calculation, 1) 11×12 = 132″, 2) 132÷16 = 8.25, rounded to 9, 3) 9+1 = 10, 4) 10×1.15 = 11.5, rounded to 12, thus it will take 10 to 12 number of 2×4 studs to frame a 11 foot wall with 16 inches on centers, stud placement.

**How many studs do i need for a 12 foot wall**

There would be approximately **10-12 2×4 vertical studs** in a 12 foot wall. For a 12 foot wall, you will need approximately **10 to 12** number of 2×4 vertical studs which spaced 16″ inches on-center. Maths calculation, 1) 12×12 = 144″, 2) 144÷16 = 9, 3) 9+1 = 10, 4) 10×1.15 = 11.5, rounded to 12, thus it will take 10 to 12 number of 2×4 studs to frame a 12 foot wall with 16 inches on centers, stud placement.

**How many studs do i need for a 14 foot wall**

There would be approximately **12-14 2×4 vertical studs** in a 14 foot wall. For a 14 foot wall, you will need approximately **12 to 14** number of 2×4 vertical studs which spaced 16″ inches on-center. Maths calculation, 1) 14×12 = 168″, 2) 168÷16 = 10.5, rounded to 11, 3) 11+1 = 12, 4) 12×1.15 = 13.8, rounded to 14, thus it will take 12 to 14 number of 2×4 studs to frame a 14 foot wall with 16 inches on centers, stud placement.

**How many studs do i need for a 15 foot wall**

There would be approximately **13-15 2×4 vertical studs** in a 15 foot wall. For a 15 foot wall, you will need approximately **13 to 15** number of 2×4 vertical studs which spaced 16″ inches on-center. Maths calculation, 1) 15×12 = 180″, 2) 180÷16 = 11.25, rounded to 12, 3) 12+1 = 13, 4) 13×1.15 = 14.95, rounded to 15, thus it will take 13 to 15 number of 2×4 studs to frame a 15 foot wall with 16 inches on centers, stud placement.

**How many studs do i need for a 16 foot wall**

There would be approximately **13-15 2×4 vertical studs** in a 16 foot wall. For a 16 foot wall, you will need approximately **13 to 15** number of 2×4 vertical studs which spaced 16″ inches on-center. Maths calculation, 1) 16×12 = 192″, 2) 192÷16 = 12, 3) 12+1 = 13, 4) 13×1.15 = 14.95, rounded to 15, thus it will take 13 to 15 number of 2×4 studs to frame a 16 foot wall with 16 inches on centers, stud placement.

**How many studs do i need for a 20 foot wall**

There would be approximately **16-19 2×4 vertical studs** in a 20 foot wall. For a 20 foot wall, you will need approximately **16 to 19** number of 2×4 vertical studs which spaced 16″ inches on-center. Maths calculation, 1) 20×12 = 240″, 2) 240÷16 = 15, 3) 15+1 = 16, 4) 16×1.15 = 18.4, rounded to 19, thus it will take 16 to 19 number of 2×6 studs to frame a 20 foot wall with 16 inches on centers, stud placement.

**How many studs do i need for a 24 foot wall**

There would be approximately **19-22 2×4 vertical studs** in a 24 foot wall. For a 24 foot wall, you will need approximately **19 to 22** number of 2×4 vertical studs which spaced 16″ inches on-center. Maths calculation, 1) 24×12 = 288″, 2) 288÷16 = 18, 3) 18+1 = 19, 4) 19×1.15 = 21.85, rounded to 22, thus it will take 19 to 22 number of 2×6 studs to frame a 24 foot wall with 16 inches on centers, stud placement.

**How many studs do i need for a 28 foot wall**

There would be approximately **22-25 2×4 vertical studs** in a 28 foot wall. For a 28 foot wall, you will need approximately **22 to 25** number of 2×4 vertical studs which spaced 16″ inches on-center. Maths calculation, 1) 28×12 = 336″, 2) 336÷16 = 21, 3) 21+1 = 22, 4) 22×1.15 = 25, thus it will take 22 to 25 number of 2×6 studs to frame a 28 foot wall with 16 inches on centers, stud placement.

**How many studs do i need for a 30 foot wall**

In a 30 foot wall, there are **24-27 2×4 vertical studs** will be required. For a 30 foot wall, you will need approximately **24 to 27** number of 2×4 vertical studs which spaced 16″ inches on-center. Maths calculation, 1) 30×12 = 360″, 2) 360÷16 = 22.5, rounded to 23, 3) 23+1 = 24, 4) 24×1.15 = 27, thus it will take 24 to 27 number of 2×6 studs to frame a 30 foot wall with 16 inches on centers, stud placement.

**How many 2×4 do i need for a 8 foot wall**

In a 8 foot wall, there are **7-8 2×4 vertical studs** will be required. For a 8 foot wall, you will need approximately **7 to 8** number of 2×4 vertical studs which spaced 16″ inches on-center. Maths calculation, 1) 8×12 = 96″, 2) 96÷16 = 6, 3) 6+1 = 7, 4) 7×1.15 = 8 studs. Thus, it will take 7 to 8 number of 2×4 studs to frame a 8 foot wall with 16 inches on centers, stud placement.

**How many 2×4 do i need for a 10 foot wall**

In a 10 foot wall, there are **9-11 2×4 vertical studs** will be required. For a 10 foot wall, you will need approximately **9 to 11** number of 2×4 vertical studs which spaced 16″ inches on-center. Maths calculation, 1) 10×12 = 120″, 2) 120÷16 = 8 in round, 3) 8+1 = 9, 4) 9×1.15 = 11 studs. Thus, it will take 9 to 11 number of 2×4 studs to frame a 10 foot wall with 16 inches on centers, stud placement.

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**How many 2×4 do i need for a 12 foot wall**

In a 12 foot wall, there are **10-12 2×4 vertical studs** will be required. For a 12 foot wall, you will need approximately **10 to 12** number of 2×4 vertical studs which spaced 16″ inches on-center. Maths calculation, 1) 12×12 = 144″, 2) 144÷16 = 9, 3) 9+1 = 10, 4) 10×1.15 = 12 studs. Thus, it will take 10 to 12 number of 2×4 studs to frame a 12 foot wall with 16 inches on centers, stud placement.

**How many 2×4 do i need for a 16 foot wall**

In a 16 foot wall, there are **13-15 2×4 vertical studs** will be required. For a 16 foot wall, you will need approximately **13 to 15** number of 2×4 vertical studs which spaced 16″ inches on-center. Maths calculation, 1) 16×12 = 192″, 2) 192÷16 = 12, 3) 12+1 = 13, 4) 13×1.15 = 15 studs. Thus, it will take 13 to 15 number of 2×4 studs to frame a 16 foot wall with 16 inches on centers, stud placement.

**Conclusion**:-

For a 10 foot exterior or interior or partition room or shed wall or load bearing or non bearing wall, you will need approximately 9 to 11 number of 2×4 vertical studs, which are spaced 16″ inches on-center.