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asta MODULARSTAIRS

ASSEMBLY INSTRUCTION

asta astaSELF-ASSEMBLY STAIRS SELF-ASSEMBLY STAIRS

GENERAL REMARKS CONCERNING THE METHOD OF ASSEMBLING STAIRS

The following instructions provide help in proper selection of all stairs parameters and tools and is a guidebook

describing step-by-step a self-assembly of modular stairs ASTA of TLC company (pages 2 - 12). You will find here

also guidelines concerning safety of assembly and operating conditions as well as technical parameters (pages 14

and 15).

BEFORE THE ASSEMBLYGo through the entire instructions and become acquainted with every stage of the assembly and manufacturer’s

recommendations. It will allow you to prepare all necessary tools before you start the assembly. Make sure that

you have obtained all elements. The easiest way is to compare the obtained packages with tables containing the

list of elements depending on the number of stairs. Everything was packed and described in order to facilitate you

finding right element.

Before you start the assembly, make sure that you are well rested and in good health. People under the influence of

alcohol are not allowed to perform the assembly. During the assembly you should strictly observe manufacturer’s

recommendations as well as health and safety regulations (page 14).

INTENDED USE AND EXPLOITATION OF MODULAR STAIRS

Modular stairs ASTA are intended both for living (living room, staircases) ant utility spaces (garages, cellars,

workshops). ASTA stairs may be used also as external stairs in gardens, access to the higher floor or terrace

being at higher level. Stairs are not adapted for use in rooms where the presence of big groups of children without

supervision is expected and in buildings intended for people with disabilities.

Modular stairs ASTA should be used in accordance with their intended use as the element of a building or the shape

of the land, which allows communication between different levels.

GENERAL MANUFACTURER’S RECOMMENDATIONS

Modular stairs ASTA should be installed in accordance with assembly instructions and only with the use of original

parts provided individually for every module. Only this kind of assembly allows long and safe utilisation and gives

the manufacturer’s warranty.

Manufacturer of modular stairs ASTA is not responsible for:

• use of elements of ASTA stairs in other structures• stairs assembled with the use of other elements than those provided and recommended by the Manufacturer• stairs assembles not in accordance with the Manufacturer’s Instructions.

ATTENTION!

• In the case of the assembly of stairs with parallel run towards the wall, there should be provided an appropriate space between the railing and this wall. Due to safety reasons, it is recommended that the space between the

railing and the wall was 50 mm wide.

• Stairs must be installed with railings (on both sides). Except the cases where the stairs are installed against the wall. It is allowed then to install only one railing, but in order to ensure the appropriate rigidity and strength of

the structure, the stairs should anchored to the wall. You can find more information on page 11.

• Railings of the stairs are mounted on the stairs of more than three steps.• Number of steps in one run of stairs should not be higher than 14.

DETERMINING STAIRS DIMENSIONS

H

S

L

NUMBER OF STEPS

340-380 530-522 2

510-570 779-762 3

680-760 1027-1003 4

850-950 1276-1244 5

1020-1140 1525-1485 6

1190-1330 1774-1725 7

1360-1520 2022-1966 8

1530-1710 2271-2207 9

1700-1900 2520-2447 10

1870-2090 2769-2688 11

2040-2280 3017-2929 12

2210-2470 3266-3170 13

2380-2800 3515-3410 14

Dimension “S” may be adjusted in a stepless manner in a given scope. All dimensions are given in mm. min 170 - max 200*

H L

S

D E T E R M I N I N G ST E P H E I G H TThe system of modular stairs has

the adjustment of step height S in

the scope 170 - 200mm*, which

gives the possibility of adjusting the

stairs to a given height. The table

below presents the height of stairs

depending on the number of steps.

In the case of atypical height of

stairs, in order to obtain the step

height S, you should divide the

height of the stairs by the number

of steps, e.g.:

H = 1500mm

number of steps= 9

Step height

S = ≈ 166mm 15009

ETHOD OF ASSEMBLING THE UPPER LEVELStructure of modular stairs ASTA assume

the installation of the upper step as a

penultimate step of stairs (variant 1) or as the

extension of the platform (variant 2). Think

about the manner in which you will install

your stairs and take it into consideration

while determining dimensions H and S.

Variant 1 Variant 2

* - acceptable step height S depends on the planned use of the stairs. You can find the limiting dimensions of height on page 15.

2 3


NECESSARY TOOLS

Below we present a set of tools necessary to assembly modular stairs ASTA. While using any of these tools you should be careful, and while performing assembly works, you should comply with health and safety regulations.

Wrenches: 13, 17, 19 Allen wrenches: 6, 5

Level Hammer drill

Rule Concrete drill 14mm

FASTENERS

ID FASTENERNUMBER OF ELEMENT DUE TO NUMBER OS STEPS

2 3 4 5 6 7 8 9 10 11 12 13 14

A Screw M8 x 50 6 10 16 20 24 28 32 36 40 44 48 52 56

B Screw M8 x 20 6 8 10 12 14 16 18 20 22 24 26 28 30

C Screw M10 x 25 6 6 6 6 6 6 6 6 6 6 6 6 6

D Screw M12 x 30 4 8 12 16 20 24 26 32 36 40 44 48 52

E Nut M8 12 18 26 32 38 44 50 56 62 68 74 80 86

F Nut M10 6 6 6 6 6 6 6 6 6 6 6 6 6

G Nut M12 4 8 12 16 20 24 28 32 36 40 44 48 52

H Washer 8 10 18 26 32 38 44 50 56 62 68 74 80 86

I Washer 10 6 6 6 6 6 6 6 6 6 6 6 6 6

J Washer 12 8 16 24 32 40 48 56 62 72 80 88 96 104

K Spring washer 8 6 8 26 32 38 44 50 56 62 68 74 80 86

L Spring washer 10 6 6 6 6 6 6 6 6 6 6 6 6 6

M Spring washer 12 4 8 12 16 20 24 28 32 36 40 44 48 52

We present you below the fasteners of ASTA stairs together with the amount of pieces depending on the number of stairs. They are marked with successive letters of the alphabet from A to M, which will help you to identify those elements in assembly drawings.

A

B

C

D

E

F

G

H

I

J

K

L

M

4 5


MAIN ELEMENTS OF THE SYSTEM

Left foot1 Right foot2 Left start module3 Right start module4

Left main module5 Right main module6 Left end module7 Right end module8

Main railing9

With support Without support> >

End railing10 Steps11

Welded grating>

Outdoor non-slip board (larch)>

Ribbed sheet>

Indoor laminated timber (beech)>

Fastener12

Saddle washer13

Right cable14 Left cable15

With support Without support> >

MAIN ELEMENTS OF THE SYSTEM

BEAMS ELEMENTS

ID ELEMENTNUMBER OF ELEMENT DUE TO NUMBER OS STEPS

2 3 4 5 6 7 8 9 10 11 12 13 14

1 Left foot 1 1 1 1 1 1 1 1 1 1 1 1 1

2 Right foot 1 1 1 1 1 1 1 1 1 1 1 1 1

3 Left start module 1 1 1 1 1 1 1 1 1 1 1 1 1

4 Right start module 1 1 1 1 1 1 1 1 1 1 1 1 1

5 Left main module 0 1 2 3 4 5 6 7 8 9 10 11 12

6 Right main module 0 1 2 3 4 5 6 7 8 9 10 11 12

7 Left end module 1 1 1 1 1 1 1 1 1 1 1 1 1

8 Right end module 1 1 1 1 1 1 1 1 1 1 1 1 1

RAILINGS

9Railing with support1, 2

0 2 4 6 8 10 12 14 16 18 20 22 24Railing without support1, 2

10End railing with support1, 2

2 2 2 2 2 2 2 2 2 2 2 2 2End railing without support1, 2

STEPS

11

Welded grating1

2 3 4 5 6 7 8 9 10 11 12 13 14Outdoor non-slip board (larch)1

Ribbed sheet1

Indoor laminated timber (beech)1

REMAINING ELEMENTS

12 Fastener 0 2 4 6 8 10 12 14 16 18 20 22 24

13 Saddle washer 6 10 16 20 24 28 32 36 40 44 48 52 56

14 Right cable 0 0 0 0 0 0 0 0 1 1 1 1 1

15 Left cable 0 0 0 0 0 0 0 0 1 1 1 1 1

We present you below the modular elements of ASTA stairs together with the amount of pieces depending on the number of stairs. They are marked with numbers 1 - 15, which will help you to identify those elements in assembly drawings.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

1 - Elements of the set correspond with the version of stairs2 - In case of anchoring one side to the wall, number of elements is reduced by half

Steps

6 7


ASSEMBLING BEAMS BEDDING ANCHORS IN A WALL AND FIXING LEFT BEAM

Main elements of the stairs consist of two side beams composed of modules 3, 5, 7 (left beam) and 4, 6, 8 (right beam). You should assembly the beams together on flat surface, in order to ensure right placing of the elements. At this stage you should use fasteners D, J, M and G, and while assembling comply with dimension S from the previously determined height of the stairs.Drawing presents the manner of installation of the left beam. Installation of the right beam should be done in an analogous manner.

3

7

D J J M G

5

S

S

C

I

L

F1

To both assembled beams you should screw

feet 1 and 2 (left and right). At this stage, for

all connections use fasteners C, I, L and F.

Drawing presents the manner of installation

of the left foot. Installation of the right foot

should be done in an analogous manner.

ark on a wall the points where left and right beam will be fixed according to the presented diagram. After bedding anchors, anchor the assembled beam in the target place (detail A). While screwing make sure that beams modules are placed vertically. You can verify the right position of the beam using a level.

H

A

A

119mm

ATTENTIONWalls and floor may be made of various types of materials, which requires using appropriate fixing materials

- mechanic and chemical. You can obtain assistance concerning the selection of anchors in a technical specialty

store.

Stairs manufacturer ASTA recommends using anchors M12 of anchorage depth of 130mm. Anchors should

be bedded in accordance with manufacturer’s instructions. In the case where stairs are assembled to steel

elements, you should use screws M12 in class 8.8 and spring washer.

Stairs should be anchored to a stable ground allowing the use of the anchor 130mm long. In the place of

anchoring in a wall, you should ensure a firm support for the end module. It is not permitted to screw an end

module directly to the elevation made of insulation materials such as Styrofoam, wool etc.

If you decide to install stairs to the wall covered with elevation, cut out a fragment of insulation and use an

intermediary installation element (channel, closed profile) of dimensions corresponding to insulation layers. In

case of any doubts ask an expert.

80mm

884mm

Anchor

8 9


FIXING RIGHT BEAM AND INSTALLING STEPS

Right beam should be screwed to the wall with screws left slightly loose, in order to allow adjustment (detail B). After the installation of left and right beam, install steps, remembering to screw them with one screw (detail C). At this stage you should use fasteners B, H, K and E. Start with the installation of three steps: at the beginning, in the middle and at the end of stairs (as in the drawing below), which will allow you to make the structure more rigid and will facilitate the installation of remaining steps. Because the stairs will be later anchored at the base, first step should be installed only after screwing the stairs to the ground.After installation of the stairs (apart from the first step), tighten screws fixing the right beam to the wall, while verifying and making adjustments in the position of stairs. Make sure that the steps are placed horizontally, and feet of both beams stand firmly on the ground. You can verify the levelling of the steps with a level.

FIXING STAIRS TO THE GROUND AND INSTALLATION OF THE BEAMS

Sliding a drill through oblong holes in stairs feet, drill holes for anchors in the ground. Before you decide where drill the holes, make sure that the beams of the stairs are placed perpendicularly towards the wall. Then bed the anchors in accordance with the manufacturer’s instructions and screw the feet. If there is 10 or more steps, you must install additionally grips for cables 14 and 15 (detail D). You will find the following manner of cables installation on the next page.

Screw railings (9 and 10) to every step, except from the first one. Upper railing screw is also second screw fixing a step. For the installation of the railing use fasteners A, H, K and E and saddle washers 13 (detail E). While installing the railing on the subsequent steps, screw them together using fasteners 12 (detail F). Try not to move tightened fasteners, because it may result in the damage to the paint coating.

ATTENTIONUnder no circumstances enter the stairs before the completion of the installation. Only after screwing all

elements and proper anchoring of the stairs, the structure guarantees the safety of use. Entering the stairs

during the installation may result in the occurrence of serious accident, and may permanently damage the

structure.

4

2

8

6

E

K

HB

B

Fixing screws tight after steps assembly

C

B

C

E

D

14

Anchor

E

KHA

13

12

910

D

FF

E

11

ATTENTIONIt is allowed to install the stairs next to the wall with one railing. In such case you should additionally anchor the stairs using holes destined to the installation of the railing. The stairs should be anchored: in third module from the bottom and in third module from the top, and, depending on the number of steps, in every third module. For anchoring we recommend anchors M8 100mm long.While installation and assembling the railings, make sure that they are placed in one line. Railings are carrying element of the ASTA stairs and their proper installation has a considerable impact on the rigidity of the structure.

Modules anchored against the wall

10 11


INSTALLATION OF FIRST STEP AND STIFFENING BRACINGS

In the case where there is 10 or more steps, it is necessary to install bracings in the form of cables 14 and 15. At the previous stage, you screwed lower grips for the cables to the feet of the stairs. Cross the cables below the stairs and fix upper grips to the seventh modules under screw D and washer J (detail G). Stretch the cables evenly with Roman screws. The installation of bracings is necessary and improves the rigidity and stability of the stairs.

The last stage is the installation of the first step. For the installation use fasteners B, H, K and E (detail H).

ATTENTIONAfter finishing the correct installation of stairs you should perform an inspection of the structure. You should

check:

• tightening of all screw connections

• correctness of the installation of anchors to the existing structure

• correctness of the installation of fasteners 12 to the posts (railings)

KH

B

H

E

11

14

15

It’s high time to admire your new stairs and yourself as well. In the end, the self-assembly of ASTA stairs allowed you

to save some money. With proper servicing and regular inspections, your new stairs will be there for you for many

years.

Before you start using the stairs vacuum them with a soft vacuum attachment and wipe with a damp cloth remaining

dust. Wooden elements of the stairs should be preserved only with substances intended for this purpose. Before

using a preserving substance, make a test on a small, hidden surface. Do not use any diluents, removers, rinse aid and

strong detergents etc. It is forbidden to leave on stairs excessive amount of water or other substances, because it may

permanently damage the structure.

READY!

G

14

D

J

ATTENTION

If you decided to have natural wood steps, remember to provide appropriate using conditions. Wood is

natural material with hygroscopic structure. That is why the Manufacturer cannot guarantee that the original

structure will be preserved if the stairs are used in external conditions - wood may become deformed, some

cracks and micro-cracks may appear etc.

12

12 13


GUIDELINES CONCERNING INSTALLATION, SERVICING AND UTILISATION OF ASTA STAIRS TECHNICAL INFORMATION

TECHNICAL PARAMETERS

Duck board permissible load 2kN/m2

Load per step 125kg

Useable width 900mm

External width 962mm

Steps dimensions 900x260mm

Stairs height (H) depending on the number of steps 340-2800mm

Height of a step (S) 170-200mm

Material Steel S355JR, S235JR, 420MC

Anticorrosion coating

1. Stairs supporting structure and balustrades: - hot dip galvanising- hot dip galvanising and powder paint: Black RAL9005- abrasive blasting and powder paint: Black RAL90052. Steps (welded grating and perforated sheet)- hot dip galvanising3. Step substructure (outdoor and indoor board)- hot dip galvanising- hot dip galvanising and powder paint: Black RAL9005- abrasive blasting and powder paint: Black RAL9005

STEPS MAXIMUM HEIGHT

In modular stairs ASTA it is possible to adjust step height, in accordance with the regulations and depending on the type

and intended use of the room.

Limits of the height of steps in fixed stairs used in buildings of various utility functions are presented in the table below.

OCCUPATIONAL HEALTH AND SAFETY GUIDELINES CONCERNING THE INSTALLATION

The self-assembly of modular stairs may be performed by a person who read the guidelines included in this instructions.

A person performing the assembly should:

• check the technical conditions of the structure or devices used in the assembly works• make sure that electric tools that are to be use in the assembly are in good technical condition allowing their safe

use and that they do not threaten the environment

• make sure that clothing and its elements do not pose a threat during the performance of assembly works• protect oneself against the fall from a height or the fall of tools or structure elements

After completing all works, the person performing the assembly should:

• make sure that all electric devices are unplugged,• make sure that all tools are put back and secured so that the would not pose a threat for the user and environment.

It is forbidden to:

• use the stairs that are incomplete or assembled not in accordance with the instructions• installation of the structure not in accordance with guidelines included in the instructions• replacing structure fasteners

GUIDELINES ON PERIODIC INSPECTIONS

TLC recommends performing ongoing inspection from utility level of the stairs, and in the case of irregularities, and

not less than once a year, also the inspection of ground level under the property and next to it. Ongoing inspection of

engineering structure is a visual inspection (survey) made within an ad hoc inspection of the structure performed to see

if there are any damages directly threatening the safety of users.

The purpose of the ongoing inspection is the verification whether there are:

• damages directly threatening the safety of users• damages significantly decreasing the comfort of using the structure or its surroundings

TRANSPORT AND STORAGE

The elements of stairs system ASTA were prepared in packages, which considerably facilitate the transport and protect

the elements from being damaged. While loading make sure that packages were placed and secured so that they do

not pose a threat to any transporting persons. Secure the packages so that they could not move during the transport. If

at the same time you transport other items, secure them in the same way. Otherwise there is a risk that the elements of

the stairs will be damaged and that there will be a direct threat to the transporting persons. All elements of the system

should be stored is dry spaces, both before and after unpacking.

UTILISATION

Packaging and used devices should be stored, managed or disposed according to applicable recommendations and

requirements defined in Act on waste of 27 April 2001 (Dz. U. [Journal of Laws] 2001 no. 62 item 628 as amended).

TYPE OF BUILDING STEP MAXIMUM HEIGHT (MM)

Single family and farm residential buildings, two-level apartments 190

Built-in and separate garages (for many vehicles) and service buildings, where is employed more than 10 people. 190

All buildings, regardless their intended use for stairs to the basement, technical rooms and non-habitable attics. 200

TORQUE FOR SCREW CONNECTIONS

It is recommended to tighten screw connections in accordance with optimum values of torques presented in the table below.

FASTENER RECOMMENDED TORQUE (Nm)

Screw M8 (strength class 8.8 thread pitch 1.25mm) 27



14 15

asta MODULAR STAIRS tlc.euinfo: +48 505 140 140

Produced by:

CERTIFIED MANUFACTURERTLC Sp. z o.o.

ul. Chopina 25N 38-300 Gorlice, POLAND

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