calling all sheet rock experts - please help.

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Forum topic by sandhill posted 04-03-2012 08:33 PM 2074 views 0 times favorited 37 replies Add to Favorites Watch
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2128 posts in 3949 days

04-03-2012 08:33 PM

Topic tags/keywords: question sheet rock truss

I put this under the safety topic because that is how I view it. I am just about ready to put sheet rock on my shop ceiling and I am a little uncomfortable with attaching 70 pound sheets of 5/8” fire code sheet rock directly onto the trusses which are 24” on center and not quit level and lined up on the horizontal plane. I thought of putting 1X3s 16” on center for a total of about 90 1X3s at a cost of about $150.00 which I had not budgeted into the project putting me at about $600.00 over budget for the entire job. ( I had not figured in the roof vent fan or the vents at the eves ). So with that said am I over killing this ceiling or is it safe to nail right to the trusses? I will also be blowing 6” of insulation in the ceiling.
Thank you for your advice.

37 replies so far

View IrreverentJack's profile


727 posts in 2868 days

#1 posted 04-03-2012 08:49 PM

Have you thought about using metal liner panel?

View Sawkerf's profile


1730 posts in 3093 days

#2 posted 04-03-2012 09:11 PM

5/8” rock nailed or screwed on 24” centers will be just fine. Look up sheetrcok nail/screw patterns to find out what the perimeter and field spacing needs to be. With 5/8”, I would probably use 1-5/8” sheetrock screws. I also strongly recommend using a lift to hoist the rock into place. That stuff gets heavy in a hurry.

Unless you have a pretty significant “step” in the truss plane, I wouldn’t worry too much about it.

-- Adversity doesn't build reveals it.

View patron's profile


13606 posts in 3366 days

#3 posted 04-03-2012 09:11 PM

california code calls for nails/screws
(i like screws)
every 8 ”
with a another within 2” by them
(i stagger the screws back and forth
to keep from running all in the center line)
just push the rock tight first
with something first
so it doesn’t tear out the rock
the fasteners wont pull the weight
till they are all in

another thing i learned on my own
i leave the ends unfastened
till the next sheet is butted to the last
then screw the seam
otherwise the ends get ‘torn’
at the screws and can keep the sheets from coming together well
(the rock breaks sideways leaving a bump there)

-- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle

View gkudaka's profile


6 posts in 2277 days

#4 posted 04-03-2012 09:15 PM

Definitely eave vents if you’re blowing in insulation.

When I lived in west coast & did training videos for sheetwork union. In CA, they didn’t use used furring (1×3). In east coast, everybody furs. Think it has to do with the expansion/contraction of wood in winter/summer temp extremes. I’m told in east coast the furring helps keep drywall seams more stable. Since you’re doing shop, assume you’re not worrying about finishing so that’s not an ussue.

Using thicker drywall, you’re better off with the 24” OC. If you were using 1/4”-3/8”, you’d have more of a problem with the sag at 24 OC. For a 4×8 sheet, your nailing pattern should be 6-8”.

You might want to look into rental a drywall jack. It’ll help you position the pieces, and you can do a quick, get it up job when you have the rental, return the jack, then finish up with more nails.

I screw rather than nail. You want to have the head of your nail or screw indent the paper, not break through the paper, into gypsum. It has to do with the importance of paper in drywall. IE., to cut drywall, all you have to do is score one side, then bend it and it will break.

View Bagtown's profile


1739 posts in 3755 days

#5 posted 04-03-2012 11:19 PM

If you don’t strap the ceiling then after a few years you’ll see waves in the ceiling when everything dries out. You’ll only see these in just the right light. If it’s just the shop and you’re not too concerned about it being pretty, then go ahead.

-- Mike - In Fort McMurray Alberta

View sandhill's profile


2128 posts in 3949 days

#6 posted 04-03-2012 11:28 PM

well I guess that settles it “No furring” If I have to I will just sister the truss where necessary to be sur I get a bite with the screws. Has anyone heard of “clips”? my neighbor mentioned the but did not elaborate. Thanks guys.

View Fuzzy's profile


298 posts in 4013 days

#7 posted 04-03-2012 11:29 PM

I put my trusses on 19.2” centers … used lots of screws hanging the 5/8” ceiling … got a few tiny sags, but nothing bad. THEN … a big Oak tree fell on it all last summer … trusses are all repaired and the roof is on, but still working on how to repair the ceiling !!! YUCK !!!

I tried some of those clips that are made for repairs … they worked OK, but, in the long run, I just cut some scrap 2 X 4’s and glued/screwed them at seams that didn’t fall on a truss … worked just fine, and I got to use up some scrap construction lumber.

-- - dabbling in sarcasm is foolish … if you’re not proficient at it, you end up looking stupid … ... ...

View sandhill's profile


2128 posts in 3949 days

#8 posted 04-03-2012 11:58 PM

I found this on You Tube its not the repair clips, Its called “The Nailer”

View Dlow's profile


70 posts in 2712 days

#9 posted 04-04-2012 12:13 AM

Couldn’t hurt to buy a tube or 2 of glue also. It makes a big difference, but you’ll probably get it in your hair and cuss me for the suggestion:)

View Craftsman on the lake's profile

Craftsman on the lake

2794 posts in 3462 days

#10 posted 04-04-2012 12:18 AM

The ceiling needs to be strapped 16” apart. It will move if you don’t

-- The smell of wood, coffee in the cup, the wife let's me do my thing, the lake is peaceful.

View sandhill's profile


2128 posts in 3949 days

#11 posted 04-04-2012 12:18 AM

No hair here! LOL Hey maybe if I get it on my head I can clip some off my dog and stick it on…

View sandhill's profile


2128 posts in 3949 days

#12 posted 04-04-2012 12:21 AM

Craftsmen on the Lake What do you mean by “strapped 16” apart”? How would I do that with 24” centers?

View patron's profile


13606 posts in 3366 days

#13 posted 04-04-2012 12:28 AM

i think he means cross banding
or furring strips
at 16” centers
like back east

-- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle

View sandhill's profile


2128 posts in 3949 days

#14 posted 04-04-2012 12:32 AM

Kind of like what I was talking about at the start of the post?

View bblogna's profile


26 posts in 2689 days

#15 posted 04-04-2012 12:43 AM

24 inch on center is fine SCREWS 12 inches apart in the field and 8 inches apart on the edges.

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