Door & Stair Width 7-0

In the IBC, stair width must be 44" b/w stringers when the occup load is greater than 50. 48" between handrails when the stair is an ADA accessible means of egress.

I just watched a few of your videos and want to thank you for the clarify! Well done. If you are still looking for questions, what about this: How, exactly, are areas supposed to be measured for IBC calculations? Face of finish? Face of structure? Outside face of exterior walls? What can be excluded? Etc, etc...

thank you for this video! very helpful!

Nicely done. We're heading to a design review in the AM, so it's a good refresher for a junior inspector trying to help with plans review.   Unrelated Q: How do you calculate "standing room only" when you have limited the non-fixed seating to allow adequate aisle spaces?  For instance, if there is "wasted" space of 200 sq ft not required for aisles or chairs in a 2000 sq ft room, can you allow 40 more people to stand against the walls?

Thank a lot it helps me a lot

Question, so is the stair width factor giving you to the total width of the stair enclosure? Or is it just for half/one run of a stair?

I thought that handrail projections are allowed within the calculated "capacity of means of egress stairways" (section 1005.7.2 of IBC 2015). Hence, your 48" clearance (3:22 min) between the handrails is a requirement for accessible means of egress not for non-accessible egresses which are allowed (though a lot of architects these days seem to make all stairways a priori an accessible means of egress). Anyway, as per IBC, my understanding is that stairway capacity width calculating using the capacity factor is the min width of the stair (not including handrails (allows 4 1/2" projection), and trim which is allowed to project 1 1/2"). So 44 - 9 = 35 & 36 - 9 = 27 (when less than 50 people) is the min, correct?

In the realm of buidling code, I'm trying to determine what is the minimum distance from a exit route to obstructed (materials or equipment) may be placed permanently or temporarily, within the exit route.

Could you please specify the reference table (from the IBC) used to get the number of exits per occupant load ?

Unless I missed something on the door requirement in the first example the door minimum is 32" so the 2 doors at 24" do not meet this requirement. This makes this example not code compliant, the doors need to be increased to 32" each.

I think that the way of thinking is slightly different from the current NFPA 101-2018. What do you think?

The concentrated and unconcentrated assembly occ./sf apply to the net floor area; therefore, staircase and other accessory areas should be excluded.

Where did you come up with the figure 184.2” at 4:33? Did you mean 154.2”?

Is the number of physical exit the same for a sprinkler building.

Thank you for the video! I have a question that I hope you can answer: when is ADA stair required in a building? An ADA stair requires a minimum of 48" between the handrails, but IBC only requires 44" including the handrails and 36" for occ. load less than 50. This would make a big difference to the design. To make it more confusing, I can't find clear width requirement for stairs in ICC A117.1. So where is the 48" requirement coming from?

is it still 0.2 if one is using m2??

Nice

Is this New Jersey fire code

How calculate evaluation time?

Just can't understand using inches, As I'm using metric measurements,, thanks for ur videos.