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atm 04-29-2009 06:16 AM

How much Drywall compound do I need
I have 70 sheets of drywall needed for may basement project. I've had different contractors estimate the amount of drywall compound materials I should have and got different estimates.

For 70 sheets of drywall, how much of the 23 KG drywall premix compound boxes should I expect to use (approximately)?

Is there a difference in the coverage if I use the bag 11kg sheetrock versus the boxed drywall premix? does one provide more mudding coverage than the other?

Thank you.

Ron6519 04-29-2009 07:20 AM

I use about 1, 5 gal tub for every 5 sheets.

bjbatlanta 04-29-2009 09:27 AM

It depends on the job. If it is cut up into a lot of rooms, you'll have a lot more angles to finish than just one or two big rooms. If there is a lot of corner bead (say for soffits/chases to hide HVAC, etc.) it will take more than just a flat ceiling. Are we talking 70 sheets of 8' or 12' board?? that will make a difference. And I don't use boxes, I use buckets. Buckets have more in them than boxes. The bags contain setting type compound which doesn't shrink as much as ready mix, costs less than a bucket, but doesn't make 5 gallons. If you don't use it all in the allotted time, you have to throw it away. All that said, when I have an average job stocked, I generally order a bucket of mud for every 1000 sq. ft. of drywall and throw in an extra for good measure. Two extra if there's a lot of bead/angles. And this is considering professional finishing. You should get by on 3-4 cans if you're fairly good at finishing. If you're going with box mud, I think it's 4 or 4.5 gallons per box as compared to 5 per bucket. You can do the math.

Ron, I hope that was a typo. 5 gallons per 5 sheets??? You're using waaaaay too much mud, if so...

HABSFAN2006 06-11-2009 12:30 PM

Age old question...
I am going to bump this one back up. Hope someone can help, I am in the same situation presently.

I have 50 sheets, 4x8 to cover for a basement project.
I am working with 20kg tubs of CGC mud, the option was the 23kg boxes like the OP, which also wanted a pound estimate,
The previous answers were given in gallons, and I do not know how much mud weighs per gallon,

could someone please clarify this, maybe we can get an avg. weight req'd per 1000 sq ft? Or, do you contractors use a per sheet estimated weight?
(32 sq. ft)?

Willie T 06-11-2009 02:12 PM

I don't often give out this secret stuff, but HERE'S your estimator page.

Scuba_Dave 06-11-2009 02:22 PM

Smaller jobs I just buy a 5g bucket of mud
Larger jobs I buy a few
Store isn't that far away for me

Nice calculator
But that means I have to measure :wink:

HABSFAN2006 06-11-2009 02:44 PM


Originally Posted by Willie T (Post 286040)
I don't often give out this secret stuff, but HERE'S your estimator page.

Wow, great thanks for the link. I know the amount of req'd screws is right on... The amount of tape and primer is also very useful.
Will have to wait a few weeks to see if the estimated weight of mud is correct!


jerryh3 06-11-2009 04:55 PM


Originally Posted by Ron6519 (Post 267042)
I use about 1, 5 gal tub for every 5 sheets.

Are you serious? Are you skim coating the entire wall?

bjbatlanta 06-11-2009 06:03 PM

You could glaze coat 5 sheets SEVERAL times with a 5 gallon bucket. I'm sure it was a typo....

Benaiahwannabe 02-05-2014 03:47 PM

That is awesome! Thanks!

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