4.0 Ramp vignette

Ramp, Stair, & Roof Vignettes and Multiple Choice

4.0 Ramp vignette

Postby Olivia_7300 » Sun Aug 27, 2017 8:05 pm

Coach, is that ok if I draw 5' wide ramp without any gap in between the two ramps? And do you see any other problems with this practice?
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Re: 4.0 Ramp vignette

Postby spike » Mon Aug 28, 2017 11:20 am

from the comments that I have received on my vignette:
-avoid inaccessible spaces between your ramps.
-its simpler to have the width of the stairs to match your landing width and faster to draw
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Re: 4.0 Ramp vignette

Postby Coach » Mon Aug 28, 2017 12:02 pm

spike wrote:-its simpler to have the width of the stairs to match your landing width and faster to draw

That would create an error in this case.
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Re: 4.0 Ramp vignette

Postby Coach » Mon Aug 28, 2017 12:04 pm

Olivia_7300 wrote:Coach, is that ok if I draw 5' wide ramp without any gap in between the two ramps?

Yes, yet you still left a gap.
Stretch the ramp. Nothing says it has to be 1:12, it just has to be 1:12 or less. And ramp slopes don't all have to be the same.
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Re: 4.0 Ramp vignette

Postby Olivia_7300 » Mon Aug 28, 2017 2:28 pm

Coach wrote:
spike wrote:-its simpler to have the width of the stairs to match your landing width and faster to draw

That would create an error in this case.


Coach, what error do you mean?
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Re: 4.0 Ramp vignette

Postby Coach » Mon Aug 28, 2017 3:11 pm

Olivia_7300 wrote:
Coach wrote:
spike wrote:-its simpler to have the width of the stairs to match your landing width and faster to draw

That would create an error in this case.


Coach, what error do you mean?


If you make the stair 5' the path of egress at the base of stair would reduce, unless you bend the rail.
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Re: 4.0 Ramp vignette

Postby carpar » Tue Sep 19, 2017 6:50 pm

Coach wrote:
Olivia_7300 wrote:
Coach wrote:
spike wrote:-its simpler to have the width of the stairs to match your landing width and faster to draw

That would create an error in this case.


Coach, what error do you mean?


If you make the stair 5' the path of egress at the base of stair would reduce, unless you bend the rail.



Hi Coach - is this because the path of travel changes? And that would mean the landing would need to be 5' x 5'? If the stair remained 44", the landing would only have to be 44" x 44"?
As per code:

Landings: Stairs shall have a level landing or floor at the top and bottom of each stair run.
- The width of a landing shall not be less than the width of the stair.
- The least dimension in the direction of travel shall be 44 inches.
- If the path of travel changes direction between stair runs, the least dimension shall be the width of the stairs.

Thanks so much Coach.
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Re: 4.0 Ramp vignette

Postby Coach » Wed Sep 20, 2017 12:12 am

It doesn't really have anything to do with that. It's all about the simple fact that a path of travel cannot reduce in with in the direction of egress.
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Re: 4.0 Ramp vignette

Postby carpar » Wed Sep 20, 2017 9:11 am

Okay got it.
Can handrails project 4" into the overall width of landing, similar to stair?

Also, does the path of travel getting smaller in the scenario where 5x5 landings alternate with 44" ramps... because technically the path of travel is getting smaller from landing to ramp?


Thank you!
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Re: 4.0 Ramp vignette

Postby Coach » Wed Sep 20, 2017 10:02 am

carpar wrote:Can handrails project 4" into the overall width of landing, similar to stair?

Rails parallel to direction of travel may.

Also, does the path of travel getting smaller in the scenario where 5x5 landings alternate with 44" ramps... because technically the path of travel is getting smaller from landing to ramp?

No. Landing size does not affect required widths.
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