Bud Dietrich, AIA
Architects & Designers
Slab on grade
 

Slab on grade

Note: This is a simplified sketch to show some basics about zero threshold showers. A such and for the sake of clarity, some detail is omitted. No one should go about notching floor joists without first engaging a qualified professional and obtaining all necessary permits.
URL
http://www.hfdarchitects.com

This photo has one question

John Whipple - By Any Design ltd. wrote:
Here you show notched floor joists but you do not show any sistering or reinforcement. Most joist spans are designed for minimum requirements. Someone following this detail could find the joists to weak and the deflection could be to great and in fact cause the failure of the shower. What are your code requirements in Florida? Here in Vancouver you often need to add to the width of a framing member the measurement of the notch. This of course needs to be approved by a structural engineer and signed off by the city inspector. Best, John Whipple By Any Design Ltd.
   Comment   November 20, 2011
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John Whipple - By Any Design ltd.
Thanks Bud. You and I might know this bud my expeirence of the past three years is that online researchers are in a hurry. They want info and right now.

When I look at your drawing I see a mock up quite close to what we use in the field here in Vancouver but not with a traditional mortar bed and liner and not at 2" off recess.

Traditional liners and mortar bed's require a pre-slope under the liner and a good 1 1/2" of mortar above the liner. Your detail shows more a Quick Drain USA type install and as drawn 2" is too much for that.

I see and help many people every month who have read online instructions and worked themselves into a corner. I would love it if you tweaked this drawing to include more detail and some direction on seeking out a structural engineer.

Thanks.

John Whipple
November 21, 2011 at 7:24AM     
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motherbear
I thank the both of you for your efforts to help us get what we WANT done and DONE right!
November 21, 2011 at 9:11AM   
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What Houzz contributors are saying:

If the shower sits on top of a wood-framed floor, either notch the floor joists or reduce the joist sizing. Before doing this, be sure to consult with your architect to be sure there is adequate support and that the installation meets building codes.More: The Case for a Curbless ShowerDesign for All: Creating a Home That Works for Everyone

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While we're thinking on the topic of universal design, let's head back to my grandma for a minute. She has to step over 18 inches of tub to bathe. I'm inclined to picture me and my walker ... and we are not wanting a deep threshold. The idea of a zero threshold shower is very appealing. If that's not feasible, then I'd like the smallest possible lip so that I don't risk falling. (Notice that in all of the 'old person' conjecture, we're always worried about me and my walker? That's because my hubby is the coordinated sort ... and I am less than graceful. And that's being kind.)
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