Framing long walls in sections and keeping 16" OC Layout

by Nic   Last Updated September 11, 2019 15:21 PM

When you frame a long exterior wall and do it in sections, say a 50' 2x6 wall in 16' sections, how do you efficiently keep 16" O.C. layout when the next wall section would throw off the 16" OC Layout? Every wall section needs a stud at the end of it to be sistered against the next wall. Is it better to cut the wall plates down so that sistered stud is actually an on-layout stud, and then the next section of wall starts layout 1.5" back so that 16 inches from the first section wall - last stud, lands on the 2nd stud of the new section wall? Trying to see how this is done by the pros in mass production so it stays efficient?

Tags : framing


Answers 2


I think it may help to know why 16" OC is so important and the main reason is that drywall and other sheathing comes in 4x8 sheets. For you to properly hang drywall, you must have a stud where ever two sheets will join up. So, as long as you have at least 3/4" of stud on either side of every 16" space, you'll be ok.

Say you make 16' wall sections... The first stud after the edge should be centered 16" from the edge of the wall - not the center of the edge stud. This means that where the two wall sections join, the space between the two edge studs will fall directly on a 16" boundary and that's fine for joining sheathing or drywall. Note that you should probably plan to have the sheathing joints not line up with the wall joints, but that can be handled pretty easily.

||           ||         ||||         ||          || 
||           ||         ||||         ||          || 
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-------------------------- -------------------------- 
    14.5"        13.75"       13.75"      14.5" 
    (Gap)
JPhi1618
JPhi1618
September 11, 2019 14:56 PM

When you pull layout from a wall end, layout shifts back toward the initial point 3/4". The last stud in a run typically hangs past the plates 3/4", thus centering it on the 16" interval.

When you pull layout in subsequent sections, you do the same--shift 3/4" back from the 16" interval marks on the tape measure. If you like to mark both sides, mark 3/4" back and 3/4" beyond. If you use a square later, just mark 3/4" back and X beyond.

In real-world onsite scenarios, all plates are aligned and tacked in position to the subfloor, then layout is pulled in one continuous run.

isherwood
isherwood
September 11, 2019 15:16 PM

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