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buildit45 03-27-2012 12:22 PM

Blocking for Non Load-Bearing Wall
Need to put in blocking for Non Load-Baring Walls and need to know the size of nails to use, how to install them (toe nail or nail through joist and into blocking) and how many nails to use?

AndyGump 03-27-2012 03:03 PM

If you can (and if I understand the question) nail through the STUDS into the ends of the blocking.

Most areas require fire blocking every 8 feet.


AndyGump 03-27-2012 03:09 PM


R302.11 Fireblocking. In combustible construction, fireblocking shall be provided to cut off all concealed draft openings (both vertical and horizontal) and to form an effective fire barrier between stories, and between a top story and the roof space.

Fireblocking shall be provided in wood-frame construction in the following locations:

1. In concealed spaces of stud walls and partitions, including furred spaces and parallel rows of studs or staggered studs, as follows: 1.1. Vertically at the ceiling and floor levels. 1.2. Horizontally at intervals not exceeding 10 feet (3048 mm). 2. At all interconnections between concealed vertical and horizontal spaces such as occur at soffits, drop ceilings and cove ceilings. 3. In concealed spaces between stair stringers at the top and bottom of the run. Enclosed spaces under stairs shall comply with Section R302.7. 4. At openings around vents, pipes, ducts, cables and wires at ceiling and floor level, with an approved material to resist the free passage of flame and products of combustion. The material filling this annular space shall not be required to meet the ASTM E 136 requirements. 5. For the fireblocking of chimneys and fireplaces, see Section R1003.19. 6. Fireblocking of cornices of a two-family dwelling is required at the line of dwelling unit separation.
This is actually more informative, it is from the IRC 2009.


buildit45 03-27-2012 03:28 PM

What I am trying to do is install blocking between floor joist in order to attach the top plate to the joist. This is for a non load-bearing interior wall. The joist run parallel with the wall so I need blocking to attach the top plate too and need to know what kind of nails to use, and how to install the blocking (do I nail through the joist on one side into the blocking or do drive the nail in at an angle going from the blocking into the joist, and how many nails do i use to keep it secure?)

Thanks for any help

AndyGump 03-27-2012 03:34 PM

I usually specify blocking for this kind of thing every 24" O.C. Use 16d. common or green sinkers, nail from joist into end of blocking if possible.


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