Calculation of ladders on bowstrings


drawing scale 1:    

Specify dimensions in millimetres

The height of the opening Y
The length of the opening X
Width of stairs Z

Number of steps C

The thickness of the steps W
Protruding edge of the steps F
The thickness of a bowstring T








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Calculating the size of wooden stairs with withs



Select the required dimensions in millimetres

X - Aperture length stairs
Y - The height of the stairs
Z - Width of stairs
C - Number of steps
W - The thickness of the steps
F - Ledge steps
T - the thickness of the treads or open string
H - Display risers
LR - direction lifting stairs
SP - the position of the first degree relative to the level of a floor of the second floor


Features of the program.

Calculation of convenient size, wooden stairs with closed strings.
Determining the amount of material.
The exact dimensions of all the parts.
Detailed drawings and schematics of all elements of the stairs.
Recommendations on convenience stairs.

The comfort and ease of climbing the stairs is calculated by a formula based on the length of the pitch.
The length of the pitch man is 60 to 66 cm, on average - 63 cm
Comfortable ladder corresponds to the formula: 2 step height + depth level = 63±3 cm.

The most convenient tilt ladder - from 30° to 40°.
Depth staircase steps must meet size 45 shoes - no less than 28-30 cm
Lack of depth can compensate for the projection step.
Step height should be 20-25 cm

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zhitov Author of the project: Dmitry Zhitov        © 2007 - 2018
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