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Unread 09-16-2009, 11:29 AM   #1
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Shower Slope Q?

Quickly just want to say how thankful I am for this forum, I feel confident my new shower construction project is going to be outstanding due to the info I have found here.

I am building a 7' x 3' rectangular shaped shower curently. I am about to set my preslope and would like to know if I should just assume a 3/4" drop toward the drain from all wall edges or try to make a less significant slope from the short walls (curb and back wall) toward the drain to make that slope less extreme?

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Unread 09-16-2009, 11:47 AM   #2
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The standard is 1/4" slope per foot. You can have more slope, but you don't want less. Measure from your drain to the farthest corner and calculate your slope from there.

The size of your shower is going to result in a more extreme slope on two sides. It will likely be more than twice the slope of the other sides.

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Unread 09-16-2009, 09:35 PM   #3
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Hi Codie,

A level perimeter on a shower floor looks great, but with your oblong shower, you may want to concentrate on maintaining a 1/4" per foot slope radiating out from the drain in all directions. It will result in the floor rising higher in the corners than in the middle of the walls, but the slope will remain constant and feel more natural underfoot.

Is your drain in the middle of the shower or off to the side?

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Unread 09-17-2009, 06:26 AM   #4
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Bubba - I was gonna say kinda the same thing but thought i'd get laughed/yelled at I figure those 7 ft long walls could accomodate a shallow bit of curvature to avoid aggressively sloping the 3-ft width in an effort to maintain a dead flat/level intersection line around the base of the shower...

7-foot long shower - man that sounds big


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Unread 09-17-2009, 09:08 AM   #5
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7' Shower

For whatever it's worth, my shower is 4x6 with shower heads on each of the 4' walls. With great water pressure I find that I can aim both shower heads into the middle of the shower and get a car wash effect. Make sure you have enough pressure that both heads hit the middle of the space
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Unread 09-22-2009, 09:12 PM   #6
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Thanks for the advice. I will focus on maintaining the 1/4" + per ft and see how it turns out when I start to mud.

7' shower will have a showerhead on each far wall with the frameless glass door in the middle. Drain is in the middle of the floor as I had to cut the concrete myself (dont really ever want to do all that again.) This used to be a linen closet
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