×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Stair tread and riser dimensions for access to storage areas?

Stair tread and riser dimensions for access to storage areas?

Stair tread and riser dimensions for access to storage areas?

(OP)
At my church in Cheyenne, Wyoming, I'm designing stairs for access to a storage loft. I'm not sure what limits apply for step height and tread depth in this situation. We could control who has access to the stairs, if that makes a difference.

The storage loft area is approximately 200 sq. ft. Again, not sure if that makes a difference.

RE: Stair tread and riser dimensions for access to storage areas?

I think a call to the building official to get his/her interpretation/requirements would be the best path forward.

If it truly is just a storage loft (think attic), it would not be considered an occupied space (per the IBC), in which case the IBC's provisions for stairs when serving as a means of egress would not apply. If that is the case, I would follow OSHA's requirements, where the minimum tread depth is 10" and the max riser height is 10". (8" rise and 10" run is pretty standard).

If it is deemed that it can't be considered a non-occupied space, then the IBC's stair requirements would apply and the max rise is 7" and min run is 11".

RE: Stair tread and riser dimensions for access to storage areas?

(OP)
If I can find anyone at the local building dept. I'll definitely reach out to them. I was thinking the same as you as far as it maybe not being considered an occupied space/means of egress, but I also assumed that there would be something in the IBC for that, but I wasn't finding it. From your reply, can I assume that there isn't anything in the IBC for stairs for other than occupied spaces? Thanks for including the OSHA requirements.

RE: Stair tread and riser dimensions for access to storage areas?

Correct, the IBC does specify any requirements for stairs unless they are being used as a means of egress.

Anecdotally, I would say as soon as you talk about stairs, most building officials want them to meet the requirements laid out in the IBC, even if the IBC does not require that the stairs be provided for a means of egress. i.e. they would rather have no stairs than stairs that don't meet the IBC egress requirements.

RE: Stair tread and riser dimensions for access to storage areas?

(OP)

Quote:

...they would rather have no stairs than stairs that don't meet the IBC egress requirements.

That doesn't surprise me. Maybe I'll just do a ladder.smile

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login



News


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close