Calculated Industries Construction Master III User Manual page 48

Risers & Treads — with 7-1/2"
Desired Riser Height
Your "desired riser height" is the default 7-1/2
inches, and you want to calculate the number of
stair risers, riser height, the overage/underage
of risers, number of treads, width of treads, and
underage/overage of treads. (For this problem
you'll need the rise and run of the stair.) The
rise of the stair is 28 feet 5-1/2 inches, the run of
the stair is 35 feet 6 inches.
COMMENTS
Clear calculator
Do All Clear
Enter Rise
Enter Run
Recall desired riser ht. [Rcl] [Stair]
Convert to 1/16's
Find # of Risers
Find actual Riser ht.
Find under/overage
Find # of Treads
Find Tread width
Find under/overage
* OPTIONAL: It's a good idea to do an All Clear [Conv] [x]
to reset to the default settings before starting a new
problem.
48 — Construction Master III
KEYSTROKES
[On/C] [On/C]
[Conv] [x]*
28 [Feet] 5 [Inch] 1 [/] 2
[Rise]
35 [Feet] 6 [Inch] [Run]
Answer: 7-1/2 IN RISER
[Conv] 1
[Stair]
Answer: 46 # RISER
[Stair]
Answer: 7-7/16 IN RISER
[Stair]
Answer: 0-5/8 IN RISER
[Stair]
Answer: 45 # TREAD
[Stair]
Answer: 9-7/16 IN TREAD
[Stair]
Answer: – 1-5/16 IN TREAD
®