2406.3(10)

[texasbo]

Dan: You are right; one thing I will not disagree with you about is poor and inconsistent wording throughout all of the I-codes.

Look at 1010.6: Landings. Ramps shall have landings at the bottom and top of each ramp, points of turning, entrance, exits and at doors. Landings shall comply with Sections 1010.6.1 through 1010.6.5.That is the type of wording needed in 1009.5 and R311.5.4.

 

[TJacobs]

Look at 1010.6: Landings. Ramps shall have landings at the bottom and top of each ramp, points of turning, entrance, exits and at doors. Landings shall comply with Sections 1010.6.1 through 1010.6.5.That is the type of wording needed in 1009.5 and R311.5.4.

Can't argue with that. That is what I apply to stairs without even thinking about it. So this means you will be filing the code change???

 

[mtlogcabin]

When you come to the top or bottom of the stairs and there is a door or additional changes in elevation then a "Landing" is required between the door or additional changes in elevation.

If no door or additional changes in elevation are present then it is a "Floor".

 

[Francis Vineyard]

When you come to the top or bottom of the stairs and there is a door or additional changes in elevation then a "Landing" is required between the door or additional changes in elevation.If no door or additional changes in elevation are present then it is a "Floor".

mtlogcabin I think your on the right direction here, allow me to try and expand;

I presumed when it’s a landing that it’s at the stairs however 1008.1.4 requires a floor or landing on each side of egress doors too. So if I had applied 2406.3(10) to “floors” at doors it would go beyond 2406.3(6) distance.

Perhaps the distinction is the landing is a platform serving a flight of stairs or egress door requiring a change of elevation or direction of travel to continue egress. A floor is a level plane that provides access to different areas other than egress. I haven’t yet explored all code sections to see if this fits. For example why ramps are required to have landings only when used as a means of egress; why not floors at top and bottom?

Following this distinction for landings and floors the Deck Builder diagram would be in error and the Maple Grove diagram correct as shown.

Share your feedback?

 

[mtlogcabin]

For example why ramps are required to have landings only when used as a means of egress; why not floors at top and bottom?

Remember the code is a result of hundreds of different proposals written over many years so all of the lanquage will not be word for word the same. We all know in our minds what a landing and the function of one is the problem is when using these undefined terms for other code sections. The glazing distances should probably be taken from the nosing of the top and bottom steps in lieu of the current wording similar to 2406.3(11).

11. Glazing adjacent to stairways within 60 inches (1524 mm) horizontally of the bottom tread of a stairway in any direction when the exposed surface of the glass is less than 60 inches (1524 mm) above the nose of the tread.

Notice the 60 inches (1524 mm) above the nose of the tread Does that mean if my riser height is 6.5 inches and my window is 65 inches above the landing it is ok. The exposed surface of the glass is less than 60 inches above the nose of the trad. Is a landing and tread the same? Most people would say no. Where is the nosing on a landing at he bottom of a set of stairs?