Designing

Straight Forward Staircase

The simplest method for design is to leave the planning to us. Our technical department can look back upon many years of experience with the planning and dimensioning of straight flight staircases. Just send us your drawing, we do the rest.

We dimension and draw the staircase, and all you need to do is check the measurements and approve the drawing before manufacture starts.

Design help

Make design and modulation of the straight staircases easier by downloading CAD files of loose strair treads and landings in grating. Also available as visual.



Staircases with one flight

Single flight staircases from a few steps to an entire staircase up to the next storey and step-off. The staircase does not turn with a turning landing.

Different variants for connection to landing

Staircases with one flight

Top tread one rise below existing step-off level.

Staircases with one flight

Top tread at the same level as existing step-off level.

Staircases with one flight

Staircase on top with landing.



Staircases with several flights

Multi-flight staircases are staircases linked together with turning landings. This allows very tall staircases to be made.

Examples of staircases with several flights

Staircases with several flights

Staircases with several flights


Angle of inclination / rise

For a staircase to be comfortable in use there should be a certain ratio between the angle of inclination, the rise and the going. The suitable angle of inclination lies between 30° and 45°. In practice, however, it is often necessary to compromise due to the limited space for the base line.

The table below shows the suitable rise and going when the angle of inclination is known.

Angle of inclination Suitable rise Suitable going Ratio* base line / height of staircase

60°
57°
55°
52°
50°
47°
45°
42°
40°
37°
35°
32°
30°

240
230-240
230
220-230
220
210-220
210
200-210
200
190
180-190
175
170

130-160
160
160-200
160-200
200
200
200-230
230
230-260
260
260-300
300
300

0,58
0,65
0,70
0,78
0,84
0,93
1,00
1,11
1,19
1,33
1,43
1,60
1,73

* If the angle is not known, but the base line is given, divide the base line figure L by the figure for the height of the stair H, then look up the nearest figure in the column to the right.

Staircase height and projectionExamplel:
Base line (L) = 3.5 m
Height of stair (H) = 2.5 m

 L 
 H 

 = 

3,5
2,5

 =

1,4 - the angle of indication
is 35°



Dimensions, stringer profile WUC

The WUC profile is manufactured from 3, 4 or 5 mm sheet steel at heights of 120 and 170 mm. For other load cases, contact Weland..

Values for WUC Profiles
Type of stringer A
(mm)
B
(mm)
C
(mm)
t
(mm)
Tensile strength
Wy cm³
Weight
(kg/m)
WUC 120/3 120 55 22 3 28,1 6,5
WUC 170/3 170 55 25 3 46,1 7,8
WUC 170/4 170 55 25 4 59,0 10,4
WUC 170/5 170 55 25 5 70,6 12,9
WUC 200/5 200 55 25 5 89,3 14,1



Child Safety

By child safety we mean that up to 800 mm railing height no opening within the staircase is allowed to be larger than 100 mm.



Measurement details

Stairtreads up to 900 mm length have 60 mm high end plates, from length 1000 mm upwards the end plates are 70 mm high. This applies to all types of tread.

Stair tread, grating

End stair tread

End dimensions (A = normal drillhole position).

Stair tread, grating

Stringer, recommended measure

Hole 14 mm dia. for M12 screw.

Stringer, grating stair tread



Stairtreads TH6

Grating treads with mesh width opening of c/c 33 x 75 mm. Hot dip galvanized.

Dimensions L x D (mm) Stocked Part No. Weight (kg each)
400 x 130 X 14204131 1,9
400 x 160 X 14204161 2,2
500 x 130 X 14205131 2,2
500 x 160 X 14205161 2,6
500 x 200 X 14205201 3,1
600 x 130 X 14206131 2,6
600 x 160 X 14206161 3,1
600 x 200 X 14206201 3,6
600 x 230 X 14206231 4,1
600 x 260 X 14206261 4,6
700 x 130 X 14207131 3,4
700 x 160 X 14207161 4,0
700 x 200 X 14207201 4,7
700 x 230 X 14207231 5,3
700 x 260 X 14207261 5,9
800 x 130 X 14208131 3,8
800 x 160 X 14208161 4,5
800 x 200 X 14208201 5,2
800 x 230 X 14208231 5,9
800 x 260 X 14208261 6,6
800 x 300 X 14208301 7,3
900 x 160 14209161 5,0
900 x 200 X 14209201 5,8
900 x 230 X 14209231 6,6
900 x 260 X 14209261 7,3
900 x 300 X 14209301 8,0
1000 x 130 14210131 5,6
1000 x 160 14210161 6,5
1000 x 200 X 14210201 7,6
1000 x 230 X 14210231 8,5
1000 x 260 X 14210261 9,5
1000 x 300 X 14210301 10,6
1100 x 200 X 14211201 8,2
1100 x 230 X 14211231 9,3
1100 x 260 X 14211261 10,4
1100 x 300 X 14211301 11,5
1200 x 200 14212201 8,9
1200 x 230 X 14212231 10,0
1200 x 260 X 14212261 11,2
1200 x 300 X 14212301 12,4
1300 x 230 14213231 12,0
1300 x 260 X 14213261 13,4
1300 x 300 X 14213301 14,9
1400 x 230 14214231 12,9
1400 x 260 X 14214261 14,3
1400 x 300 X 14214301 16,0
1500 x 230 X 14215231 15,0
1500 x 260 X 14215261 16,9
1500 x 300 X 14215301 18,8
1600 x 260 14216261 18,0
1600 x 300 X 14216301 20,0
1800 x 300 X 14218301 22,3


Stairtreads TH6-S

Grating treads with safety front edges and a mesh width opening of c/c 33 x 75 mm. Hot dip galvanized.

Dimensions L x D (mm) Stocked Part No. Weight (kg each)
500 x 200 X 14305201 3,1
600 x 130 X 14306131 2,6
600 x 160 X 14306161 3,1
600 x 200 X 14306201 3,6
600 x 230 X 14306231 4,1
700 x 160 X 14307161 4,0
700 x 200 X 14307201 4,7
700 x 230 X 14307231 5,3
700 x 260 X 14307261 6,0
800 x 200 X 14308201 5,2
800 x 230 X 14308231 5,9
800 x 260 X 14308261 6,6
900 x 200 X 14309201 5,8
900 x 230 X 14309231 6,6
900 x 260 X 14309261 7,3
1000 x 200 X 14310201 7,6
1000 x 230 X 14310231 8,5
1000 x 260 X 14310261 9,5
1000 x 300 X 14310301 11,0
1100 x 260 X 14311261 10,4
1100 x 300 X 14311301 12,0
1200 x 260 X 14312261 11,2
1200 x 300 X 14312301 12,0
1300 x 260 14313261 13,4
1300 x 300 X 14313301 15,0
1400 x 260 14314261 14,3
1400 x 300 X 14314301 16,0
1500 x 260 X 14315261 16,9
1500 x 300 X 14315301 19,0
1600 x 300 X 14316301 20,0
1800 x 300 X 14318301 22,3
Grating treads
ZoomIn


Dimensions of landings

Type TH6 and TH6-S are available in standard depths of 500, 700 and 1000 mm, hot galvanized.

Dimensions of landing end plate

Hole 14 mm dia. for M12 screw.



Landings TH6

Grating landings with mesh width opening of c/c 33 x 75 mm. Hot dip galvanized.

Dimensions L x D (mm) Stocked Part No. Weight (kg each)
500 x 500 X 14805051 5,9
500 x 700 X 14805071 8,0
500 x 1000 X 14805101 11,2
600 x 500 X 14806051 6,9
600 x 700 X 14806071 9,4
600 x 1000 X 14806101 13,1
700 x 500 X 14807051 9,2
700 x 700 X 14807071 12,4
700 x 1000 X 14807101 17,7
800 x 500 X 14808051 10,4
800 x 700 X 14808071 14,3
800 x 1000 X 14808101 20,0
900 x 500 X 14809051 11,7
900 x 700 X 14809071 15,9
900 x 1000 X 14809101 22,3
1000 x 500 X 14810051 15,0
1000 x 700 X 14810071 20,5
1000 x 1000 X 14810101 28,7
1100 x 500 X 14811051 16,5
1100 x 700 X 14811071 22,5
1100 x 1000 X 14811101 31,4
1200 x 500 X 14812051 17,9
1200 x 700 X 14812071 24,4
1200 x 1000 X 14812101 34,1
1300 x 500 X 14813051 21,7
1300 x 700 X 14813071 29,6
1300 x 1000 X 14813101 41,5
1400 x 500 X 14814051 23,3
1400 x 700 X 14814071 31,8
1400 x 1000 X 14814101 44,6
1500 x 500 X 14815051 27,7
1500 x 700 X 14815071 37,9
1500 x 1000 X 14815101 53,2
1600 x 500 X 14816051 29,7
1600 x 700 X 14816071 40,7
1600 x 1000 X 14816101 57,2
1800 x 1000 X 14818101 61,2


Landings TH6-S

Grating landings with safety front edges and a mesh width opening of c/c 33 x 75 mm.

Dimensions L x D (mm) Stocked Part No. Weight (kg each)
500 x 500 X 14905051 5,9
500 x 700 X 14905071 8,0
500 x 1000 X 14905101 11,2
600 x 500 X 14906051 6,9
600 x 700 X 14906071 9,4
600 x 1000 X 14906101 13,1
700 x 500 X 14907051 9,2
700 x 700 X 14907071 12,4
700 x 1000 X 14907101 17,7
800 x 500 X 14908051 10,4
800 x 700 X 14908071 14,3
800 x 1000 X 14908101 20,0
900 x 500 X 14909051 11,7
900 x 700 X 14909071 15,9
900 x 1000 X 14909101 22,3
1000 x 500 X 14910051 15,0
1000 x 700 X 14910071 20,5
1000 x 1000 X 14910101 28,7
1100 x 500 X 14911051 16,5
1100 x 700 X 14911071 22,5
1100 x 1000 X 14911101 31,4
1200 x 500 X 14912051 17,9
1200 x 700 X 14912071 24,4
1200 x 1000 X 14912101 34,1
1300 x 500 X 14913051 21,7
1300 x 700 X 14913071 29,6
1300 x 1000 X 14913101 41,5
1400 x 500 X 14914051 23,3
1400 x 700 X 14914071 31,8
1400 x 1000 X 14914101 44,6
1500 x 500 X 14915051 27,7
1500 x 700 X 14915071 37,9
1500 x 1000 X 14915101 53,2
1600 x 500 X 14916051 29,7
1600 x 700 X 14916071 40,7
1600 x 1000 X 14916101 57,2
1800 x 1000 X 14918101 61,2


Fixing and bracing

Straight flight staircases have different fixing and bracing alternatives depending on the size of the staircase. In the case of small staircases, fixing angles may be sufficient. Larger staircases may need both support beams and brackets.

Weland will help with the right fixing and bracing.

Fixing angles

Fixing angles for staircase and landing stringers.

Fixing angles


Bracket

Bracket underneath landing stringers.

Bracket


Support Leg

Support leg and fixing angles underneath landing stringers.

Support Leg


Support beam

Support leg and support beam underneath landing.

Support beam


Platform

Separate platform.

Platform



Product Manual

Brochures

 

Spiral Staircases and Straight Staircases

Spiral Staircases and Straight Staircases for all Environments - Outdoors and Indoors

Date:
29/06/2016
Pages:
20
Keywords:
Spiral Staircases; Straight Staircases; all environments; outdoors; indoors; evacuation; availability; Industrial environments; office and home applications; Custom-Designed; Weland AB
File type:
pdf

Related pages

Design help

Maintenance Instructions

Order Specifications


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