How do I figure out how many studs for a wall?

oyates

I have a wall that is 24' long by 10' an then my other wall is 20' long how do I figure how many studs are needed and how much insulation? The walls will be 16"oc

sixeightten

Usually figuring one stud per foot will get you pretty close. Insulation generally comes by the sq ft. Length of wall times height. Don't forget that you will need plates for the wall as well.

gregzoll

You have the key numbers. Now if you do not know how to do basic math, find a third grader that can take the length and figure out how many inches, then take that number and divide by 16.

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COLDIRON

Yeah that one foot rule is good, somehow somewhere I am sure if you have any left over you will find a use for them. Guaranteed.

ddawg16

I use a different method.....

Since I want to make sure that studs land on 16" OC.....I think of it terms of a sheet of OSB (or drywall)....each sheet takes 3 studs (plus the end stud).....so if I have a wall 20' long....that is 5 sheets of OSB for the shearwall....5 x 3 + 1....16 studs....plus 2 20 footers for the top plate.....

Don't forget that if you windows or doors....you will need you jack stud and trimmers.....

When I first started off doing DIY....I tried to get my counts exact....after awhile I realized I was making too many trips back to HD for "one more piece".....now I make sure I buy extra.....I can always return what I don't use.....which in most cases, I end up using it anyway.

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sixeightten

2x4's are never technically "left over" There is always a use for a couple of them. Not to mention, they are very inexpensive and have a great shelf life.

Hammer450R

^^^^+1

If its just stud wall you can go length in ft x .8 But you will have corners that will eat up a couple.

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oh'mike

Add an extra 10--that is what I always do--with doors--wall ends and blocking you will use them and more--

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ratherbefishing

Windows and doors really add to the stud count. Especially if you want particular sizes or need them in a particular place.

D270

Good shelf life....!.? No offense, but it seems I spend an hour picking out studs at Home Depot....Then I end up using half of them through the weekend, and must leave town for business (a slow DIYer . )

When I come home 5 days later....its a warped mess. lol

I have found if you don't use 2x4s right away...they may twist. Of course mildly twisted and warped ones are still usable in many instances

gregzoll

I have had 2x4's laying up in the attic of our garage, and never had any twist on me. Matter of fact, I have lumber up there from nine years ago, and still as straight as it was, when I brought it home.

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Hammer450R

First problem is you said home depot for studs lol
You let then suck up moisture then yes they will warp like mad.

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Gary in WA

Figure 1 per foot as said, on a house.

Individual walls, almost as easy; 24'wall= 1/2 length(12) plus 1/2 that # =(6) plus (1)starter stud = 19 studs.

20' = 10+5+1 = 16 studs

Gary

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D270

Wow you must be lucky.

Every contractor I have known will come right out and say if you don't nail it up, it will bow/twist.

oodssoo

Not always... This all depends on how you store the 2x4s.

Pressure Treated ones will definitely bow.