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Old 11-27-2017, 07:12 AM   #1
Granny Grunt
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Question

Newby here and this question might have been asked a thousand times but I searched and came up empty. Custom float as deck mud ? Old hand diy-er but new to this kind of project. Any advice sincerely appreciated.
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Old 11-27-2017, 07:21 AM   #2
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Lots of others in the forum and hopefully they will reply. But i for one do not know what your asking. “Custom Float as deck mud”. How to install mud base for a shower? Product to use? A tool ?
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Old 11-27-2017, 07:57 AM   #3
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Welcome, Cathy.

Custom Float is not deck mud. It is fat mud, designed for use in "floating" walls and similar applications.

I'll wait for the response to Robert's questions before going any further than that.
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Old 11-27-2017, 08:08 AM   #4
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Ok, yes I was asking about shower floor, so I guess that's a big fat no ? The Customfloat at HD is lighter so I wondered could it be used as drypack.
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Old 11-27-2017, 08:21 AM   #5
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Old 11-27-2017, 09:43 AM   #6
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Question Lost

Maybe I should have given this post a different name? Or posted in a different area ?
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Old 11-27-2017, 01:16 PM   #7
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We can change the title of the thread if you want.

You'll want a mixture of portland and sand for deck mud. You could use Quikrete sand topping mix, which is a 3:1 mixture, then add enough sand to make it a 5:1 mixture.
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Old 11-29-2017, 08:29 PM   #8
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Thank Kman I appreciate the response. I took the custom float back and got the sand topping and sand. Am trying to do this right the first time and it's all about the research.
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Old 11-30-2017, 06:34 PM   #9
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Or, you can get the All purpose sand and Portland cement. Measure 5 equal parts of sand to 1 Portland cement. Mix it dry and then slowly add water until it's damp and barely clings together.
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Old 12-03-2017, 02:27 PM   #10
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Mud calculation question

The shower we are putting in is 54"x32" with a linear drain on the end. How do you calculate the mud for this type of floor ? I want a minimum of 1 1/2" at drain so at far wall the slope will hit 2 3/4". How can I calculate this ?
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Old 12-03-2017, 03:35 PM   #11
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Cathy, in our Liberry under Calculators you'll find some information on calculating deck mud for shower floors. I don't recall if it addresses single-slope floors like yours, but what you need is just basic math and geometry.

Specifically you'd want to calculate the amount to do a floor of uniform thickness of 1 1/2 inches. Then you want to make the same calculation for a uniform floor of 1 1/4 inches and divide that in half. Add those two results and you have the overall requirement for your sloped floor.

I come up with a little over 2 cubic feet. Your mileage may vary. I'd probably plan on mixing about 2 1/2 cubic feet.

Always mix a little more than you think you'll need. Make yard bunnies with whatever's left. Deck mud is very cheap. Running out of deck mud before you finish a floor is a PITA.

My opinion; worth price charged.
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Old 12-03-2017, 07:31 PM   #12
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Thank CX I so appreciate ur help. I've been over those calculators a bunch of times and couldn't figure it out. Now I'll have to figure out how much sand topping mix and sand I need for 2+ cu. ft.
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Old 12-03-2017, 09:47 PM   #13
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Got the 70lb bags of Quickrete all purpose sand to mix with the sand topping mix but, upon reading reviews they say it's like "dust and pea gravel". "Pieces that won't go through 1/4" mesh". "Crushed concrete washout." I'm thinking this isn't the type of sand I want for a nice smooth shower floor ?
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Old 12-03-2017, 09:52 PM   #14
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Cathy, those sand materials vary rather dramatically between geographic locations and I've never seen Quikrete anything in a 70-pound bag. No idea what you might find there and you won't know either until you open one.

You do not want anything with pea gravel in it.

My opinion; worth price charged.
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Old 12-04-2017, 06:46 AM   #15
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Size:  25.3 KB hope this pic shows up. Think i'll stand the bag up and split the top and check it before I go mixing it. If it's not acceptable I will tape it up and take it back. I've been to Home Depot as much for returns on this project as I have purchases.
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