L-Shaped Staircase Calculator (90 degree turn, Quarter turn)

L-Shaped Staircase Calculator (90 degree turn, Quarter turn)

Free professional L-shaped staircase calculator with drawings and 3D — tools to easy find stringer length, landing dimensions, steps rise and run.

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Display
DU
CL
Staircase Type
LF
RG
Calculate Total Run Along:
FTP
FBT
Stairs Dimensions, Stairwell
Y
X
SZ
Landing
LB
LT
Steps
QT
12
QB
2
SW
SF
SP
Stringers
T
WI
Landing Joists
JT
JW
Risers
H
HT
Support Posts
SB
Upper Floor Slab
SX
WX
ST
Balustrade
RH
BA
RT
RW
Wall
WT
Error calculationPlease check your input
the Calculator will be available after changes in the relevant parameters.
Click "Calculate" to open the options window.
Choose Drawing:
Distance: 0
Calculation results
Staircase Dimensions
  • Angle: 32.01 °
  • Comfortable Staircase Formula (R + G): 48.75 cm
  • Blondel's Formula (2R + G): 67.5 cm
  • Rise: 18.75 cm
  • Tread Depth: 37.5 cm
  • Going (Run): 30 cm
  • Number of Steps: 15 pcs.
  • Staircase Width: 100 cm
  • Minimum Throat Depth: 14.1 cm
Materials for construction
Lower Stringers
  • Width: 30 cm
  • Length: 68.63 cm
  • Thickness: 6 cm
  • Quantity: 2 pcs.
  • Wood Volume: 0.025 m3
Upper Stringers
  • Width: 30 cm
  • Length: 433.34 cm
  • Thickness: 6 cm
  • Quantity: 2 pcs.
  • Wood Volume: 0.156 m3
Straight Steps
  • Tread Depth: 37.5 cm
  • Length: 100 cm
  • Thickness: 4 cm
  • Quantity: 14 pcs.
  • Wood Volume: 0.21 m3
Risers
  • Width: 14.75 cm
  • Length: 100 cm
  • Thickness: 2.5 cm
  • Quantity: 15 pcs.
  • Wood Volume: 0.055 m3
Landing
  • Width: 100 cm
  • Length: 107.5 cm
  • Thickness: 4 cm
  • Quantity: 1 pcs.
  • Wood Volume: 0.043 m3
Landing Support Joists, Oriented along Lower Stringer
  • Width: 15 cm
  • Length: 100 cm
  • Thickness: 5 cm
  • Count: 2 pcs.
  • Wood Volume: 0.015 m3
Landing Support Joists, Oriented along Lower Stringer
  • Width: 15 cm
  • Length: 100 cm
  • Thickness: 5 cm
  • Count: 2 pcs.
  • Wood Volume: 0.015 m3
Balustrade
  • Handrail Width: 8 cm
  • Handrail Thickness: 4 cm
  • Handrail Length: 520.34 cm
  • Wood Volume: 0.017 m3
Balusters
  • Width: 5 cm
  • Length: 86.85 cm
  • Quantity: 15 pcs.
  • Wood Volume: 0.033 m3
Newel Posts
  • Width: 8 cm
  • Length: 108.75 cm
  • Quantity: 1 pcs.
  • Wood Volume: 0.007 m3
Support Posts
  • Width: 10 cm
  • Length: 52.25 cm
  • Quantity: 4 pcs.
  • Wood Volume: 0.021 m3
Initial parameters
Display
  • Units: cm
  • Drawing Color: color
Calculate Total Run Along:
  • Upper Stair Flight:  selected
Stairs Dimensions, Stairwell
  • Total Rise: 300 cm
  • Total Run: 460 cm
  • Stair Width: 100 cm
Landing
  • Overlap Landing along the Lower Stringer: 0 cm
  • Overlap Landing along the Upper Stringer: 0 cm
Steps
  • Quantity (Upper Flight): 12 pcs.
  • Quantity (Lower Flight): 2 pcs.
  • Thickness: 4 cm
  • Nosing (Tread Overlap): 5 cm
Stringers
  • Thickness: 6 cm
  • Width: 30 cm
Landing Joists
  • Thickness: 5 cm
  • Width: 15 cm
Risers
  • Thickness: 2.5 cm
Support Posts
  • Width: 10 cm
Upper Floor Slab
  • Slab Overlap: 0 cm
  • Distance from Wall: 0 cm
  • Thickness: 20 cm
Balustrade
  • Handrail Height: 90 cm
  • Baluster Width: 5 cm
  • Handrail Thickness: 4 cm
  • Handrail Width: 8 cm
Wall
  • Thickness: 20 cm
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