Egress

[bkelly2 (Brian Kelly, AZ Cert. # 60234)]

The minimum width of windows for egress is?

[labstein (Les Abstein, CMI)]

20 inches.

[kramm (Kenneth A. Ramm)]

20" clear width for a 41" clear height window
34 1/8" clear width for a 24" clear height window

[jjonas (Jeffrey Jonas)]

@bkelly2

The minimum width of windows for egress is?

Just sayin’… for those trying to read too much into the question, or code!

[mlarson (Michael Larson, WI Lic. # 1672-106)]

@kramm

20" clear width for a 41" clear height window
34 1/8" clear width for a 24" clear height window

Not in Wisconsin.

20" x 24" minimum

(6) Windows used for exiting. Windows which are installed for exit purposes shall comply with the requirements of this subsection.
(a) The window shall be openable from the inside without the use of tools or the removal of a sash. If equipped with a storm or screen, it shall be openable from the inside.
(b)

1. The nominal size of the net clear window opening shall be at least 20 inches by 24 inches irrespective of height or width. Nominal dimensions shall be determined by rounding up fractions of inches if they are ½-inch or greater or rounding down fractions of inches if they are less than ½-inch.
2. No portion of the window, including stops, stools, meeting rails and operator arms, shall infringe on the required opening.
   (c) The area and dimension requirements of par. (b) may be infringed on by a storm window.

Wisconsin Legislature: SPS 321.03(3)(c)

[btoye (Bradley Toye, CMI)]

@mlarson

Not in Wisconsin.

20" x 24" minimum

Wisconsin Legislature: SPS 321.03(3)(c)

Actually, Kennith is more correct than you are. Only, he is quoting net clear for a second story window. Ground floor is only 5 sq ft with min 20" wide and 24" high.

[bkelly2 (Brian Kelly, AZ Cert. # 60234)]

I always find it interesting the different codes used in different jurisdictions. Good information and discussion.

[mlarson (Michael Larson, WI Lic. # 1672-106)]

@btoye

Actually, Kennith is more correct than you are. Only, he is quoting net clear for a second story window. Ground floor is only 5 sq ft with min 20" wide and 24" high.

Please learn to read.** I said for Wisconsin**.

I even posted the state law.

[bkelly2 (Brian Kelly, AZ Cert. # 60234)]

The IRC uses a min of 20". But as has been pointed out the requirements are different in other jurisdictions. It is always good to know what codes/requirements are being used/enforced in your specific area.

[tspargo (Tim Spargo, CMI)]

Most areas here…20" min width… 5.7sf first floor, 5.9sf second floor

Also, it’s been my experience that Manu’s indicate right on the window label (replacement or new construction) whether the window meets said standards for Egress, Energy etc.