COMMENTS
KEYSTROKES
Mult. by height (depth) [x] 2 [Feet] [=]
Answer: 338.4505 CU FT
Div. by 2 per formula* [÷] 2 [=]
Answer: 169.2253 CU FT
Step 4— Add Volumes of Sections “A” and B”
Add to Value in Mem.
[M+]
Recall Total
[Rcl] [M+]
Answer: 499.2253 CU FT
Convert to yards
[Conv] [Yds]
Answer: 18.48983 CU YDS
Clear Memory
[Rcl] [Rcl]
Stair Stringer Length
You have a floor-to-floor Rise of 8 feet 10-3/8
inches and 7-1/2-inch risers. What’s the stringer
length if the Run of the stairway is 10 feet 10
inches?
COMMENTS
KEYSTROKES
Clear calculator
[On/C] [On/C]
Compute Rise of
stringer**
8 [Feet] 10 [Inch]
3 [/] 8 [–]
7 [Inch] 1 [/] 2 [=]
8 FT 2-7/8 IN
Enter as Rise
[Rise]
Enter Run
10 [Feet] 10 [Inch]
[Run]
Find stringer length
[Diag]
Answer: 13 FT 7-21/64 IN
* Using the formula for Area of a Triangle: 1/2 B x H -- you
multiply the Base (Run) x Height (Rise) and divide by 2 to
find the area of triangle "B."
** Stringer Rule: For stringer calculations, the Rise of the
stairway is the floor-to-floor Rise minus the length of the last
riser.
38 — Construction Master III
®
