The tread overhang is the distance that the stair tread
protrudes over the riser, on a staircase. The picture below provides you
with an excellent example of a stair tread overhang. The most common
stair tread overhang measurement used by stair building professionals,
designers and architects is 1 inch.
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Try to avoid making tread overhangs longer than 1
inch, without checking with your local building department to verify
that you're not breaking any building codes. The only time I will ever
create an overhang longer than 1 inch is when I'm dealing with stair
treads smaller than 9 1/2 inches in width or depth.
Dangers Using Long Tread Overhangs
If these overhangs are too long, they can become trip hazards for anyone
walking up the stairway. For people walking up the stairs, they could
easily get their feet caught on these long overhangs.
If these tread overhangs are too long, they could actually break off, if
enough pressure was applied to them. Depending upon which type of
building materials used, this could be detrimental to anyone who was
walking down the stairway.
There are reasons why building codes were created and it's all about
safety. Pay attention to them, because these people have been working on
them for quite some time now and usually have a good reason, for
creating them.
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