Calculation of straight wooden staircases on strings

Calculation of straight wooden staircases on strings

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Specify sizes

Map
DU
cm
  • mm
  • cm
  • m
  • inch
  • ft
CL
paint
  • black and white
  • color
Variant steps
LF
RG
Span
Y
X
Z
Stage
QS
16
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
SW
SF
SP
open Strings
T
WI
Risers
H
HT
Slab
SX
ST
Handrails
RH
BA
RT
RW
Wall
ST
ladder Drawing (side view) ladder Drawing (top view) open string (pattern)

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calculation Results

Ladder
  • Angle: 32.5 °
  • Height of steps: 17.6 cm
  • Depth steps: 27.7 cm
  • Number of steps: 16 PCs
  • Width: 100 cm
  • Min. W. the stringer: 15.1 cm

Materials of construction

open Strings
  • Width: 30 cm
  • Length: 522.2 cm
  • Thick: 5 cm
  • Number: 2 PCs
  • Объем: 0.157 m3
Stage
  • Width: 35.2 cm
  • Length: 100 cm
  • Thick: 5 cm
  • Number: 16 PCs
  • Объем: 0.281 m3
Risers
  • Sirina: 12.6 cm
  • Length: 100 cm
  • Thick: 2.5 cm
  • Number: 15 PCs
  • Объем: 0.047 m3
Handrails
  • Width: 8 cm
  • Thick: 4 cm
  • Length: 539.8 cm
  • Volumes: 0.017 m3
Balusters
  • Side section: 5 cm
  • Length: 86.9 cm
  • Number: 16 PCs
  • Объем: 0.035 m3

Specified Dimensions

Span
  • clearance: 300 cm
  • span Length: 450 cm
  • Width of stairs: 100 cm
Stage
  • Total number: 14 PCs
  • Thick: 5 cm
  • edge guide: 5 cm
open Strings
  • Thick: 5 cm
  • Width: 30 cm
Risers
  • Thick: 2.5 cm
Slab
  • Ledge above the opening: 100 cm
  • Thick: 20 cm
Handrails
  • Height: 90 cm
  • Side cross-section balusters: 5 cm
  • thickness of the handrail: 4 cm
  • Width of rail: 8 cm
Wall
  • Thick: 20 cm

help

It is very important to design comfortable wooden staircase on the second or third floor, which also will be the least traumatic for you and your children, without losing appeal. To solve the problem of correct calculation of direct straight wooden stairs in the house to help our online calculator and help him.

The calculator allows you to perform online calculation of straight staircases on strings. The program generates the results of the calculations of the 3D model straight staircase, drawings of all structural elements with straight stair stringers.

 

How to calculate staircase on strings online?

Measure and make the main dimensions of the design - parameters of the staircase, measure the distance between the levels clean the floor of the second and first floor. Then fill in the stairs, the stringer and the risers. Click the "Calculate"button.

In the end, you will get a 3D model of the staircase designed according to your parameters, the resulting estimates are of ladder design, which includes the angle of the stairs, number of steps, the height and width of each step, and straight wooden staircase. Program to calculate stairs draw four detailed drawing straight stair with open strings:

  1. view of the stairs on the side
  2. view of stairs from above
  3. a separate drawing of the stringer straight stairs
  4. drawing steps

Can not determine with the required original dimensions? Just below we will talk you through on the basic common in the construction of the parameters of a straight ladder, its angle, size of steps is designed taking into account ease of ascent and descent on a straight hardwood staircase.

The optimum size of the stairs angle, stairs

There are building codes and Standards in the parameters of ladders, height, width of steps, which is very important to observe in order to avoid injuries. Resort to norms of GOST 23120-78 - describes the requirements for main stairs.

Recommended settings for wood stairs
  • The width of the opening of the stairs. S and standard value in a private house taking 90 - 110 cm If space is limited, the width of the opening sause, the minimum critical value - 80 cm
  • The height and width of the steps. According to standards the maximum height of stairs may not exceed 200 mm. Usually 15 - 17 cm Optimal width of a step 27 - 30 cm

The standard length of the step 60 - 63 cm the calculations often use the formula "ideal safe ladder", developed centuries ago by French ingeneral Blondel: 2 step height + width of a step = step 60 - 63 cm

  • The angle of incline of the stairs. Optimal comfortable angle for ascent / descent - in the range 29 - 35 degrees.
  • For manufacturing steps and podstupenej use a wooden Board: for rise the optimum thickness of 30 mm; for stages — 40 mm.
  • Minimum ledge of the wooden steps (overhang) above the risers 30 mm, maximum 40 mm. Overhang increases the surface level.
  • The number of stages for a single flight of stairs - no more than 18 pieces. On average, 10 to 12, but of course it depends on the length of the March. Suggest a number of steps to make the odd - thus, to start and finish the ascent or descent the stairs you will be one and the same foot.
  • The height of handrails must extend from 90 cm for security purposes.
  • Finally, do not forget that the minimum height in the aisle stairs, from any step of the March to the next obstacle vertically, must be at least two meters.

If we talk about the loads experienced by a standard staircase in a residential building - 300 kg/m2. P Ragib them should not exceed 1/400 of the span.

3D visualization will allow to evaluate the usability and direct stairs to the stringers, to provide a view of the future straight stairs made of wood, visually to experiment with the number and sizes of steps.

 

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