|Those pesky dimensions! October 2008|
|Recently I was challenged by some seminar participants on rules I was explaining. As I researched a bit more to get a better handle on the rule, here is what I found:|
Fig. 31 Lavatories and sinks and Fig. 27 EWC
I know I've spoken before about Fig. 31 and the dimension that shows 6" max (toe clearance). Since the drawing shows the dimension from the wall, I receive drawings showing exactly that: a protective skirt that is angled so that it is not more than 6" from the wall.
In reality, the 6" maximum defines one side of a space where nothing can occupy. So that means that it should be free from obstructions and equipment. This requirement is based on anthropometric measurements for wheelchair users. It was determined that an object cannot extend more than 6" from the back wall and it must be at least 9" above the floor in order for a person in a wheelchair to be able to position themselves for a frontal approach to the elements and be able to reach all necessary parts or controls.
So if there is a pipe, for example that is below 9" a.f.f. then it cannot extend more than 6" from the back wall.
This is not dimensioning the distance that the skirt must be away from the back wall.
See the sketch below which comes from the Access Board who wrote the guidelines. You MAY have the protective skirt MORE than 6" away from the wall. It can even go straight up and down as long as you have 8" horizontally back from the front of the apron and 9" below for toe kick.
Notice the 6" is not touching the wall. Hope this clear things up a bit.