To avoid these ads, REGISTER NOW!

Marking 16" OC stupid question time

remagenman

Well-known member
Joined
Oct 30, 2011
Messages
438
I'm building a she-shed and have built another shed in the past but why do most stud layout videos emphasize making sure you mark your layout 3/4 inches back from 16" on the tape measure.

It complicates an easy process to just mark on the 16" and every 16" afterwards and making that mark the center of your stud.

Am I missing something?
 
To avoid these ads, REGISTER NOW!

1500hd

Well-known member
Joined
Jul 1, 2007
Messages
94
Location
Mid Michigan
Just the first stud is held back 3/4”. Hook the plates and mark 16” o.c. The remaining studs should be centered on the 16” mark.
 

PugetDude

ALLIANCE MEMBER
Joined
Mar 13, 2013
Messages
22,348
Location
Superstition Mountains, AZ
I always mark both sides of the stud-15-1/4 and 16-3/4 for example.
Saves screw ups on which side of the line to position the stud when you're working with someone else- especially if you are both working toward the center from both ends of the wall.
 

Jking24

Well-known member
Joined
Feb 27, 2018
Messages
258
Just the first stud is held back 3/4”. Hook the plates and mark 16” o.c. The remaining studs should be centered on the 16” mark.

Yes this if you don't offset the first stud your sheathing will land at the edge of a stud not in the middle. If it's held flush with the end of the wall
 
OP
R

remagenman

Well-known member
Joined
Oct 30, 2011
Messages
438
Yes this if you don't offset the first stud your sheathing will land at the edge of a stud not in the middle. If it's held flush with the end of the wall

So just to be clear, if I'm going to lay rafters 24 OC, I would start from the edge of top plate (1st rafter will be flush with edge) and just mark every rafter location center at the 24 inch mark? (24,48, 72, etc.)

Thanks.
 

Innovate1

Well-known member
Joined
Jul 28, 2014
Messages
4,285
Location
Illinois near St. Louis, Missouri
So just to be clear, if I'm going to lay rafters 24 OC, I would start from the edge of top plate (1st rafter will be flush with edge) and just mark every rafter location center at the 24 inch mark? (24,48, 72, etc.)

Thanks.

Yep. That puts the rafters (studs, whatever...) centered at 4' and 8' which is where the joints in the panels are. The last one will be set in 3/4" so the far edge is even with the edge of the panel (assumes 4 or 8 ft multiple for total length).
 

Samh

Well-known member
Joined
Aug 16, 2006
Messages
482
Location
Canton GA
Yes this if you don't offset the first stud your sheathing will land at the edge of a stud not in the middle. If it's held flush with the end of the wall

Larry Hahn would say you just offset the plywood at the edge 3/4". From a production framing standpoint, it is faster. That being said, I wouldn't do it, because that gap at the corner would bug me, even though you'd never know it with the siding up.

A loggers tape has the 16"O.C markings on them

https://www.garagejournal.com/forum/attachment.php?attachmentid=915983&stc=1&d=1592934868
 

Innovate1

Well-known member
Joined
Jul 28, 2014
Messages
4,285
Location
Illinois near St. Louis, Missouri
Larry Hahn would say you just offset the plywood at the edge 3/4". From a production framing standpoint, it is faster. That being said, I wouldn't do it, because that gap at the corner would bug me, even though you'd never know it with the siding up.

A loggers tape has the 16"O.C markings on them

https://www.garagejournal.com/forum/attachment.php?attachmentid=915983&stc=1&d=1592934868

Might work on the walls but not on the roof.

Not sure why a logger would need 16" markings unless they were doing something other than logging. :headscrat
Lots of common tape measures have 16" markings though.
 
Last edited:

Samh

Well-known member
Joined
Aug 16, 2006
Messages
482
Location
Canton GA
Not sure why a logger would need 16" markings unless they were doing something other than logging. :headscrat
Lots of common tape measures have 16" markings though.

Me either, but that thing is extremely handy. This one has the area noted for the whole stud, so it is extremely easy to see. The other nice thing about it, is you can get it in a 100' length. Good for larger structures. Not that the OP needs it for the she shed though.
 

bdbecker

ALLIANCE MEMBER
Joined
Nov 18, 2015
Messages
5,551
Location
Iowa
...Not sure why a logger would need 16" markings unless they were doing something other than logging...

A lot of framers use logger's tapes for big layouts. Faster/easier than using a wind up tape. I'm guessing the logger tape manufacturers saw an opportunity to sell to a new crowd and added the 16" notation.
 

Joemctag

Well-known member
Joined
Aug 11, 2017
Messages
813
Location
Outside raleigh nc
I learned about the x from framing carpenters and still do that. You can have the x mean that’s what side of the line the piece, in this case, the stud, goes. I also use the x to show what side of a line to cut on ( where the kerf needs to be).
 

NUTTSGT

Super Moderator
Staff member
Joined
Sep 14, 2009
Messages
50,891
Location
Northern Central Ohio
So just to be clear, if I'm going to lay rafters 24 OC, I would start from the edge of top plate (1st rafter will be flush with edge) and just mark every rafter location center at the 24 inch mark? (24,48, 72, etc.)

Thanks.

Technically, if you lay out the wall studs 16" OC and fhe rafters/trusses 24" OC, you should have a double top plate. This helps distribute the weight.
 
To avoid these ads, REGISTER NOW!

scottydosnntkno

Well-known member
Joined
Aug 8, 2010
Messages
670
Assuming your using a typical new style tape that had the 16 OC in red letters, I persomallt find it easier to layout as +3/4 and X or / to the left of the mark to note which side the stud goes on. Even though there’s the red marks, it’s just easier to be thinking in the mindset of plus. 16.75, 32.75, 48.75 etc then 15.25, 31.25, 47.25 etc.

Also layout your top and bottom plates at the same time, stacked on edge vertically that way your marks all like up.
 
OP
R

remagenman

Well-known member
Joined
Oct 30, 2011
Messages
438
Kinda the reason I brought this topic up because it seems like we know the studs are 16 or 24 OC but theres about 3 ways to do it differently!
 

Samh

Well-known member
Joined
Aug 16, 2006
Messages
482
Location
Canton GA
So now I have a potentially dumb question - Is the .75" offset for the first stud done so you are marking the edge of the studs and not the center?

It's more accurate to line up the physical edge to a physical mark than to "eyeball" the center of the stud to a mark.

Yes. the O.C. part means On Center. So unless you wanted to actually mark the center of each stud, you'd offset. After the first offset, you could just pull your tape off that one and mark at the 16" marks
 
OP
R

remagenman

Well-known member
Joined
Oct 30, 2011
Messages
438
Yes. the O.C. part means On Center. So unless you wanted to actually mark the center of each stud, you'd offset. After the first offset, you could just pull your tape off that one and mark at the 16" marks

I found out too late what a saddle square is because this would of made my life a whole lot easier, put the square in the middle of the mark and scribe two lines on either side!

Veritas sells one for $19! a little high for a very simple marking jig I think.
 

brownbagg

Well-known member
Joined
Mar 20, 2006
Messages
5,208
yall are making this hard, mark 16 that where the nail goes, you want 48 to split the 2x, so 48going be middle of stud, 16, 32,48. first stud doesnt matter
 

The Cobbler

Super Moderator
Staff member
Joined
Oct 24, 2013
Messages
25,840
Location
Niagara Region, Ontario, Canada
i just mark every 16 and drive the nail on the right side of the mark

yall are making this hard, mark 16 that where the nail goes, you want 48 to split the 2x, so 48going be middle of stud, 16, 32,48. first stud doesnt matter

which is it? first you say on nail the the right of the line, then you say drive the nail on the line?

maybe watch some framers sometime and see how they do it.
 

egdede

ALLIANCE MEMBER
Joined
Dec 20, 2009
Messages
2,069
I mark both sides now too with an x in the middle. But these days I've been framing in my basement. Before that I framed my shed. I guess you'd say these days 'I frame for me, I frame for free.' I never marked both sides on the job, that's for sure.
 

rslaback

Well-known member
Joined
Jul 24, 2010
Messages
4,064
Location
Westcentral Wisconsin
When I used to teach this I would always have my students mark out the first common and then drive a couple of nails on either side of the mark and use those to hold the tape end. Then they could use the actual 16" increments.

They most all could understand the first stud at 15 1/4" from the end. It got a bit muddier for some when we started talking about the other wall in a corner that you can save time marking at 11 1/4" for the edge of the first common (or 9 1/4" if using 2x6). Doing this allows for you to apply a full 48" sheet of plywood on each side of the corner without having to rip one.
 

ZRX61

Well-known member
Joined
Aug 15, 2006
Messages
28,716
Location
Solar Blight Valley, SoCal
Me either, but that thing is extremely handy. This one has the area noted for the whole stud, so it is extremely easy to see. The other nice thing about it, is you can get it in a 100' length. Good for larger structures. Not that the OP needs it for the she shed though.
I have a Stanley fatmax 100ft tape that's marked every 16"
 
To avoid these ads, REGISTER NOW!
Top Bottom