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Old 06-23-2008, 04:11 PM   #16
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Am I SCREWED? Stairs & building code.


Quote:
Originally Posted by thekctermite View Post
You've got the hang of rise variances.

If the ramp is located within the 3' required landing, it would not be allowed. No portion of a landing can exceed a 2% slope, which equates to 1/4" maximum slope per 12" of landing.

If it is not in the landing, but out in the floor of the house, it would be allowable.
The ramp wouldn't be directly in front of the stairs - but rather in the doorway adjacent to and at a right angle to the stairs.

So, it's within 36", but it's off to the side. When I post a pic tonight it will be clearer.

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Old 06-23-2008, 04:23 PM   #17
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Sounds like it might be ok. Hard for me to say for sure without a pic.
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Old 06-23-2008, 05:44 PM   #18
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Am I SCREWED? Stairs & building code.


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Not true. The code allows 3/8" variance between any two steps on the flight of stairs. As an inspector, I can measure the top and the bottom and compare them, or I can randomly choose two other rises...Adjacent to each other or not...And they have to be within that 3/8" range.
You're right, I'm quoting Massachusetts code, I thought it was International.
I my case I guess it depends on which edition the town is using. I got it slightly wrong it's 3/16"

From 6th edition.
3603.13.2 Treads and risers: ... The greatest riser height within any flight of stairs shall not exceed the smallest by more than 3/8 inch (9.5 mm) and any two successive risers shall not deviate by more than 3/16-inch in height....

From 7th edition
5311.5.3.1 Riser Height... The greatest riser
height within any flight of stairs shall not
exceed the smallest by more than 3/8 inch (9.5
mm).
No mention of adjacent steps.
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Last edited by Clutchcargo; 06-24-2008 at 06:23 AM. Reason: Sorry, local codes not applicable to the OP.
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Old 06-24-2008, 12:05 AM   #19
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Am I SCREWED? Stairs & building code.


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I'm quoting Massachusetts code.
Cool, but the OP is using the 2003 I-codes. Gotta be careful we're giving out the correct information when citing code.
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Old 06-24-2008, 07:25 PM   #20
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Am I SCREWED? Stairs & building code.


Here's a picture finally. The area outlined in blue is where I propose to make the 3/8" -> 3/4" transition ramp.
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Old 06-24-2008, 08:08 PM   #21
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Again, wouldn't adding a layer of ply and a threshold solve the problem?
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Old 06-24-2008, 08:34 PM   #22
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Again, wouldn't adding a layer of ply and a threshold solve the problem?
No because then the height of the first riser would be to short relative to the rest of them.
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Old 06-26-2008, 10:27 AM   #23
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Would you be opposed to removing the first tread and shimming the stringer 3/8"? When the finished floor went in you'd be at 7 2/8" on the first rise, 7 2/8" in the second rise, and 7 5/8" on the remainder.

-Sam
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Old 06-26-2008, 11:10 AM   #24
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Am I SCREWED? Stairs & building code.


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Would you be opposed to removing the first tread and shimming the stringer 3/8"? When the finished floor went in you'd be at 7 2/8" on the first rise, 7 2/8" in the second rise, and 7 5/8" on the remainder.

-Sam
That's an interesting idea, and would give me a flush floor. It would likely require replacement of the first tread and the risers above and below it, because they are nailed (liquid & otherwise) in there pretty well. I'll take a look at it.
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Old 06-26-2008, 04:05 PM   #25
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That ramp thing isn't a code violation where it is located. The required landing is only as wide as the stairs, and anything outside of that is floor space, assuming it isn't within 36" of a top or bottom of the stairs in the direction of travel.

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