Limited Riser Staircase Function [RsrLmt]   Limited Riser Staircase
                  Function


Same is the [Stair] function, but risers are limited to be no greater than the value stored at [RiserH].  This allows for stairs to be designed to code restrictions on riser height. 

The [RsrLmt]+[Stair] functions calculate stair layout and geometry based on the following input scenarios:
  1. Stored [Rise] and [Run].
  2. Stored [Rise] only.
  3. Stored [Run] only.
See below for example calculations, notes and definitions.


Tread Detail Parameters



Stair Layout Parameters

Examples: 
1.  Stored [Rise] and [Run].
Input
[clr] [clr]
9 [Feet] 10 [Inch]
[ Rise ]
12 [Feet] [ Run ]
[Conv] [RsrLmt]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
Display
0

    9ft 10in
Rise
    9ft 10in
Run
    12ft
Actual Riser Height
    7- 3/8in
Risers
16
Riser Overage / Underage
0in
Actual Tread Width /!\
9- 5/8in
Treads
15
Tread Overage / Underage
0- 3/8in
Stairwell Opening
9ft 9- 7/16in
Stringer Length
    15ft 1- 7/8in
Actual Incline Angle
    37.46�
Run of Treads
    12ft
Floor to Floor Rise
    9ft 10in
Desired Riser Height
    7- 1/2in
Desired Tread Width
    10in
Headroom
    6ft 8in
Floor Thickness
    10in

2. Stored [Rise] only.
Input
[clr] [clr]
9 [Feet] 10 [Inch]
[Rise]
[Conv] [RsrLmt]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
Display
0
Rise
    9ft 10in
Actual Riser Height
    7- 3/8in
Risers
16
Riser Overage / Underage
0in
Actual Tread Width
10in
Treads
15
Tread Overage / Underage
0in
Stairwell Opening
10ft 2-  1/16in
Stringer Length
    15ft 6- 3/8in
Actual Incline Angle
    36.41�
Run of Treads
    12ft 6in
Floor to Floor Rise
    9ft 10in
Desired Riser Height
    7- 1/2in
Desired Tread Width
    10in
Headroom
    6ft 8in
Floor Thickness
    10in

3. Stored [Run] only.
Input
[clr] [clr]
12 [Feet]
[Run]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
[ Stair ]
Display
0
Run
    12ft
Actual Riser Height
    7- 1/2in
Risers
15
Riser Overage / Underage
0in
Actual Tread Width
10- 5/16in
Treads
14
Tread Overage / Underage
0- 3/8in
Stairwell Opening
10ft 3-  3/4in
Stringer Length
    14ft 10- 1/2in
Actual Incline Angle
    36.03�
Run of Treads
    12ft
Floor to Floor Rise
    9ft 4- 1/2in
Desired Riser Height
    7- 1/2in
Desired Tread Width
    10in
Headroom
    6ft 8in
Floor Thickness
    10in

*Notes:

Key
[ RiserH ]   
[ TreadW ]
[ FloorH ]
[ Prefs ]
Staircase Headroom
Stored Value
Desired Riser Height
    7- 1/2in
Desired Tread Width
    10in
Floor Thickness
    10in
Staircase Headroom
    6ft 8in

Definitions:

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