The shower will slope from the wall to the drain.
Tile floor slope to drain.
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Mix up some concrete mix in the mixer.
That way you can establish where the tiles are supposed to go in relation to the grid before you cut them around drain.
If there s a noticeable slope to the floor leading into the drain make sure to use smaller floor tile four inches across or less so you can more easily follow those contours.
For example a floor that extends 4 feet away from the drain should have 1 inch of overall slope.
If the wall is 3 feet from the drain the cement should rise by 3 4 inches as it goes from the drain to the wall starting at the half inch depth around the drain for a total height of 1 1 4 inches at the wall.
Mark this outer height mark along the wall with a pencil.
The trend to large format tiles brings the added complication of obtaining a floor fall to a single waste outlet and to avoid tile lippage in the process.
I would need a sketch of the floor to fully visualize your design but you could slope the entire floor to a linear drain.
When installing a floor drain on most indoor floor surfaces it is important to slope the floor slightly so that water will flow toward the drain efficiently.
The primary consideration regarding a wet area floor is to ensure that the floor drains adequately.
To determine the proper slope measure from the drain to each wall and figure a quarter inch of slope per foot of length.
To efficiently drain the recommended minimum slope for a shower floor is about 4 percent or a 1 2 inch drop per every 12 inches from the shower walls to the drain.
The floor between the bath and the drain will also slope from the bath to the drain hence no need for a separate floor waste.
The easiest and most effective way to create this type of sloped floor is with an old fashioned mud job.
In traditional tile shower.
Too much slope will create a poor feel to the floor and cause the unsettling sensation of the room being crooked.
Now the floor is flat until about 18 around the drain and it s not an even slope around it either.
The difficulty in doing this is that the wood framing would need to be altered to accommodate the slope over the 12 1 2 floor which would violate the building code.