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# Search Results

Results tagged with Search options answers only user 66548
19 results
Code requires a nosing to be not more than 9/16” if it’s rounded and shall not extend less than 3/4” or more than 1 1/4”. Nosings shall be approximately the same amount and not vary by more than 3/8” …
answered Mar 7 '18 by Lee Sam
The 2017 edition of the IRC is the same as Ken noted in the 2009 edition. So, No, 33.75” from the face of the railing post to the opposite wall is not acceptable. It must be 36” wide. (See ICC Secti …
answered Mar 14 '18 by Lee Sam
The maximum riser height is 8”. So, if the dimension from floor to floor is 16” or less, then you only need one tread. (See IRC R311.7.5.1) Treads can be a minimum of 9”. (See IRC R311.7.5.2) However …
answered Jun 13 '18 by Lee Sam
Code says risers can’t be more than 8” high and can’t vary from the largest to smallest by more than 3/8”. (See IRC R311.7.5.) Treads can’t be less than 9” and can’t vary by more than 3/8”.
answered Apr 20 '18 by Lee Sam
Yes, a landing is required at the top and bottom of residential stairs. The simple answer is it should be 36" in the direction of travel. (There is an "exception" to that, but does not apply to you … -shaped treads) for the last few steps. Basically you're making a 90 degree "left-turn" at the top of the stairs. There are several requirements to those steps, which I'm not smart enough to figure out …
answered Feb 28 '17 by Lee Sam
The Code requires a tread depth of no less than 9”. (See ICC R311.7.5.2.). However, it also states that the maximum difference between “any tread” can’t be more than 3/8”. Btw, risers can’t be mor …
answered Mar 5 '18 by Lee Sam
No, changing (notching) the “skirting” into “stringers” will not affect the stability of the stairs, provided that 1) the new stringer against the wall is nailed to the studs in the wall, 2) the … stringer at the “open” side of the stairs is supported by a wall, as shown in your “Goal” picture, and 3) riser boards are at least 1x and installed as shown. The load of a stair is carried by the …
answered Nov 1 '18 by Lee Sam
stair and no greater than 38”. It shall be on one side minimum and have a minimum of 1 1/2” between it and the wall. Handrails can be interrupted at newel posts at corners and ending points of stairs , otherwise they are to be continuous. (That is to say, you should not have to remove your hand at supports.) …
answered Jun 8 by Lee Sam
The Code requires the stair width to be 36” ABOVE the handrail and 27” width at the handrails and lower. (See IRC R311.7.1) Only one handrail is required. (See IRC R311.7.8) (In commercial projects, …
answered Jul 7 '18 by Lee Sam
In the U.S., (I see you use cm. Metric is too difficult for us Americans,) there are several types of stairs that “bend” around corners, etc. We call them 1) spiral stairs, 2) winding stairs (your … stair design), 3) curved stairs. One of the most important requirement in the Code is that the stairs must be uniform. That means uniform height, depth, depth at wall line, etc. (I see your treads …
answered Aug 17 by Lee Sam
The Code restricts the nosing to a maximum of 1 1/4” beyond the riser below. (See ICC 1009.7.5.1) and they shall all be uniform. Also, the radius of the curvature of the nosing shall not exceed 9/16 …
answered Mar 30 by Lee Sam
The International Code Council says in the International Building Code that a 4" sphere shall not pass through a "guard" for stairs over 30" above finish floor...except for the triangular space …
answered Aug 19 '17 by Lee Sam
I don’t see an advantage of using hardwood veneer plywood over spf veneer plywood, unless it’s going to be your “finish” layer. Yes, thicker is better, but required thickness is a product of span, ( …
answered Sep 8 '18 by Lee Sam
Length??? I don't understand what that means by lowering the "porch railing". However, If the porch is 30" or more above the adjacent grade, the guardrail must be 42" high. (See IBC Section 1013.2.)
answered Aug 19 '17 by Lee Sam
No, one handrail is required on stairs with 4 or more RISERS. (R311.7.7.) it needs to have a minimum of 1 1/2" clear from the handrail to the wall and shall be mounted not less than 30" nor more than … 38" above the nosing of the tread. (R311.7.7.1.) The handrail shall be continuous, but it can be interrupted by newel posts at turns. (R311.7.7.2.) The size is complicated, but don't go larger than 2"... (R311.7.7.3.) AND, all stairs shall be lighted. (R311.7.8.) …
answered Jul 12 '17 by Lee Sam

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