Calculated Industries 4090 - Manual (Page 100)

U
SER
’
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G
UIDE
— 99
Stairs — Given Rise and Run
You need to build a stairway with a floor-to-floor height of 10 Feet 1
Inch, a Run of 15 Feet 5 Inches, and a nominal desired Riser height
of 7-1/2 Inches (default). Calculate all stair values.
KEYSTROKE DISPLAY
1. Enter Rise and Run:
o o 0.
1 0 f 1 i r Y 10
FEET
1
INCH
1 5 f 5 i R X 15
FEET
5
INCH
2. Find stair values:
s R-HT 7-9/16
INCH
*
s RSRS 16.
s R+/– 0
INCH
s T-WD 12-5/16
INCH
s TRDS 15.
s T+/– – 0-5/16
INCH
s OPEN 12
FEET
2-1/2
INCH
s STRG 18
FEET
0-3/4
INCH
s INCL 31.5588°
s RUN (
X
) 15
FEET
5
INCH
s RISE (
Y
) 10
FEET
1
INCH
s R-HT 7-1/2
INCH
s T-WD 10
INCH
s HDRM 6
FEET
8
INCH
s FLOR 10
INCH
*A yield symbol ( ) will light in the display meaning the calculated Riser height
exceeds the stored desired Riser height by 10%.
STORED
STORED
STORED
STORED
STORED
STORED