Handrail Extensions

[RJMCGUIRE]

can handrail extensions extend into the maneuvering clearances at doors?

Thank you

RM

 

[RJMCGUIRE]

I should clarify. wall mounted stair handrail extensions.

 

[High Desert]

If it extends into the maneuvering clearance, then you don't have the required maneuvering clearance at the door. I would say no.

 

[JPohling]

a sketch may be beneficial, but if the wall mounted rail protrudes 3" from the wall which is typical then there should not be any interference with your maneuvering clearances

 

[RJMCGUIRE]

that's what I was thinking; the 4" rule on extensions into the accessible path. i'll try to bounce this off our ras too.

thank you.

 

[mark handler]

Short answer NO

Long answer, Maybe depends

 

[RJMCGUIRE]

hehe. thanks Mark.

 

[mark handler]

a sketch may be beneficial,

a sketch may be beneficial,

 

[RJMCGUIRE]

View attachment 701

let me know what you guys think.thank you,rView attachment 701

/monthly_2013_05/572953c804d3d_StairHandrailatManueveringClearance.JPG.571d9694da68e2f06dfa54db4137d3a3.JPG

 

[mark handler]

Being that a door can be recessed 8 inches, there are no real issues with the sketch.

So is it okay, yes

 

[RJMCGUIRE]

thanks mark.

 

[RLM-Architect]

Protrusions above 34" are not considered a problem per the ADA.

SOOOO! OKAY TO HAVE IT!

 

[mark handler]

Ya see, the more information provided, the better the answer....

 

[jar546]

Handrail Extensions

Whatever Mark says goes around these here parts

Sent from my iPhone using Tapatalk

 

[fatboy]

Not withstanding the original question, um, did I miss something, misinterpret the drawing?

24R X 7" = 168" = 14';

1009.10 Vertical rise. A flight of stairs shall not have a vertical

rise greater than 12 feet (3658 mm) between floor levels

or landings.

 

[mark handler]

Not withstanding the original question, um, did I miss something, misinterpret the drawing?24R X 7" = 168" = 14';

1009.10 Vertical rise. A flight of stairs shall not have a vertical

rise greater than 12 feet (3658 mm) between floor levels

or landings.

what if the unlabeled risers are 6 inches?

and oh ya there is a landing?

 

[fatboy]

How often is a stair designed for 6" risers

Pardon me for the assumption that it was designed in accordance with common construction tolerances.

Really? 24 rises, an inch each? I doubt that is efficient building planning, adding a couple extra treads to each stair run, but I am not one with a license.......

 

[jar546]

Based on the scale, I believe they mean 24 total between floors, 12 and 12 to landing. It counts up that way too.

 

[JPohling]

Also if it is a continuous stair the center railings do not need extensions as shown, If that is what I am seeing in the sketch.

 

[north star]

= + =

"Also if it is a continuous stair the center railings do not need extensions as shown, If thatis what I am seeing in the sketch."

Please cite a code section!.....Thanks!= + =

 

[Markmax33]

The SFPE handbook has a whole section about this and shows a diagram how handrails don't impede egress in stairwells, so they shouldn't impede in other waist high areas. They did a study or something about the shape of the human body.

 

[JPohling]

= + =Please cite a code section!.....Thanks!

= + =

CBC 1133B.4.2.2 references Figure 11B-37. Figure 11B-37 text indicates: "inner handrail at landings of stairs that double back or immediately turn shall be continuous and shall not extend into landing or accessible route of travel" image indicates no handrail extensions on inner continuous rails.

ADA 505.10 Handrail Extensions. Handrail gripping surfaces shall extend beyond and in the same direction of stair flights and ramp runs in accordance with 505.10.

EXCEPTIONS:

1. Extensions shall not be required for continuous handrails at the inside turn of switchback or dogleg stairs and ramps.

 

[north star]

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Thank you **JPohling** !

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