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- Product Description
- Height & Layout
- Fixing
- Downloads and videos
- Staircase FAQs
- Additional Information
- Product's Review
A special balustrade of stainless steel cables and steel balusters make the Komoda one of the most stylish modular staircase kits around. It is made by an Italian company called Arke and is a re-design of their classic Kompact modular staircase – (the original model has been in production for well over a decade and is proven to be one of the most reliable modular staircase kits on the market today). The Komoda is easy to assemble and most people manage to do this in a single day using standard tools for everything except cutting the cables – for which we sell special cutters if you need them.
The Komoda can be arranged into many different formats such as a straight flight, an L shape or a U shape, and so can be adjusted to suit most houses. For more information please read the height and layout tab. Otherwise the most common queries about the Komoda modular staircase kit are:
What comes in the box?
Treads
Carriage modules (to form the steel structure) with top and bottom fixing plates
Handrail
Balusters
Cables
Two wall brackets
Support column
Written installation instructions and a DVD showing the assembly.
What are the main parts made from?
The treads and handrail are made from beech (a good quality hardwood). They come with a primer coat of either clear varnish or varnish mixed with a dark stain.
The balusters, carriage modules, fixing plates and support column are made from steel. They are powder coated and coloured either white, grey or black.
The cables are made from stainless steel. They are bright polished.
How can I tell if it will fit my house?
You need to take a few measurements and then carefully read the information we give on heights and layout and fixings. If you have any questions please do not hesitate to call our technical sales team on 0800 098 8778. We're here to help!
How is the delivery made?
The Komoda modular staircase is supplied in kit form. It is shipped in a large plywood box on a wooden pallet and depending on the number of treads ordered there may be a few smaller cardboard boxes as well. The delivery is made using a large vehicle with a tail lift and a pump truck because the main box is too heavy to be lifted by hand. The driver will take the goods off the lorry and deliver them to the roadside outside your property, or as close as possible if you live on an unmade road. From there you will need to bring them into the building. If you need to do this by hand you can do so only by opening the box and carrying in the pieces inside. It is not possible to move the complete box by hand as it will weigh at least 240kg.
Will my new staircase meet building regulations?
Unfortunately it isn't possible for us to give you a simple yes or no answer to this question because there are different requirements for stairs depending on the envirorment where they are used. For example the rules applied to a staircase in a private house are different than those applied to a staircase in a shop or public place. Approved Document K from the Building Regulations explains what the requirements are but there are lots of factors to consider so if you need please contact our technical sales team on 0800 098 8778. Remember that it's your responsibility to determine whether or not your installation is subject to the Building Regulations.
Accessories for the Komoda modular staircase
In addition to the Komoda modular staircase kit there are some accessories available which you might need to finish your job. They are:
Second side raking balustrade kit for the Komoda modular staircase kit by Arke
The Komoda modular staircase kit comes with enough balustrade to go along one side of the staircase only (the well side). If you need balustrade on both sides of your stair then you need to buy some of these kits as well as your staircase.
Landing balustrade kit for the Komoda modular staircase kit by Arke
The Komoda modular staircase kit comes with enough balusters to go along one side of the staircase only. It does not come with any balustrade to sit on the upper floor. The collective name for the handrails, balusters etc that sit on top of the upper floor is landing balustrade. If you need landing balustrade you must buy it seperately. It is sold in kits 1.2 metres long.
Before you buy a Komoda modular staircase kit you need to check that it will fit the space you have available for it. Please read through the information below before you place your order and also take a look at the accessories which are available for the Komoda modular staircase kit, just to make sure you have everything you need to finish the job properly. If you have any questions please don’t hesitate to contact one of our technical sales people on 0800 098 8778, we’re always happy to help!
Staircase Height
The correct way to measure the total height of your new staircase is to measure vertically from the top of your floor on one level to the top of the floor on the next. The measurement is known as the floor to floor height. Different buildings have different floor to floor heights and so the Komoda modular staircase kit is adjustable so that it can fit the exact floor to floor height on your site.
What is the floor to floor height?
The floor to floor height should be measured vertically from the top of one floor to the next.
Floor to floor table
This table allows you to work out how many treads and risers you will need to be able to reach your floor to floor height. The term “riser” refers to the height of each step and the tread is the surface you stand on. There is always one more riser than there are treads because the last riser is the step up from the top tread to the upper floor.
| Floor to floor | No. of risers | No.of treads |
|---|---|---|
| 2100 - 2350mm | 10 | 9 |
| 1910 - 2550mm | 11 | 10 |
| 2080 - 2790mm | 12 | 11 |
| 2250 - 3030mm | 13 | 12 |
| 2420 - 3270mm | 14 | 13 |
| 2580 - 3490mm | 15 | 14 |
| 2750 - 3730mm | 16 | 15 |
Staircase layout
Once you have determined the number of treads needed to reach your floor to floor height you also need to work out a way of arranging them to suit the space you have available. The downloads listed below explain the many different ways in which the Komoda can be configured bearing in mind that you adjust the goings and decide on the direction of the turns (left or right) when you are installing the stair. Please note that the overall dimensions given are for the stair only and do not include any clearance. The stair must positioned so that it is at least 10mm clear of any surrounding walls.
Below are typical drawings of the standard Komoda modular staircase kits
I shaped formats (straight flights)
This download will show you a couple of standard drawings of straight flights. The drawings are based on a typical 12 tread (13 riser) staircase but you may well need more or fewer treads than this so in that case please contact our technical sales team on 0800 098 8778 and we will be happy to make a specific drawing for you.
Download I shaped format layout diagrams
L shaped formats (single winders)
This download will show you some standard drawings of L shaped (single winder) flights. The drawings are based on a typical 12 tread (13 riser) staircase but you may well need more or fewer treads than this so in that case please contact our technical sales team on 0800 098 8778 and we will be happy to make a specific drawing for you.
Download L shaped formats layout diagrams
U shaped formats (double winders)
This download will show you some standard drawings of U shaped (double winder) flights. The drawings are based on a typical 12 tread (13 riser) staircase but you may well need more or fewer treads than this so in that case please contact our technical sales team on 0800 098 8778 and we will be happy to make a specific drawing for you.
Download U shaped formats layout diagrams
As you might expect the Komoda kit modular staircase needs to be securely fixed in a few key places. Before you buy a Komoda modular staircase kit you need to take a close look at your site to see whether or not secure fixings can be achieved. The different types of fixing are:
There is also a prop to the floor which supports the carriage approxamately half way up. It isn't actually fixed to the floor but you need to make sure it sits on solid ground.
Staircase plans and instructions
Here you can download plan drawings with dimensions and installation instructions for the Komoda modular staircase kit:
Lower Floor Fixing Plate
Underneath the treads of the Komoda staircase there is a series of steel modules (one per step) which make up the carriage. The first module has a steel plate welded to it, which needs to be bolted to the lower floor. Below are a few common types of floor and ways of fixing to them. Please bear in mind that if there is an under floor heating system present then you will need to be sure that the area is clear of pipes before you start drilling holes:
Concrete
Drill holes as required and bolt the fixing plate down with the standard expansion bolts supplied.
Concrete under insulation and screed
In this situation there is a danger that the weight of the stair could cause the insulation to compress and damage the screed and floor covering. One solution is to chemically fix threaded rods into the concrete slab and then fit some locking nuts so that the fixing plate is held just fractionally above the floor. You need to be sure that the threaded rods connect solidly onto the concrete and that you fill the shaft with the resin. The idea is that the load is imposed onto the concrete and not the insulation or screed.
Concrete floors under floating wooden floorboards
You can generally drill some clearance holes in the wooden floor board and then just fix into the concrete using expansion bolts. The only danger is whether or not your floorboards need space to expand and contract. If you are in doubt check with the flooring supplier. In most cases, and especially with laminates and engineered floor boards, they just tell you to leave some clearance around the holes in the wood.
Wooden joists
Replace the expansion bolts with some M10 coach screws and washers so that you can screw straight through the floor board and into the joists beneath. If there are no joists in the required spot lift the floor boards and put some in place.
Upper Floor Fixing Plate
The top carriage module also has a steel plate welded to it which is surface fixed over the apron of the upper floor. The plate is typically fixed as follows:
Concrete
Drill clearance holes in the apron and then drill into the concrete and fix the plate with the expansion bolts supplied.
Wood
Replace the expansion bolts supplied with some M10 coach screws and washers. Screw through the apron and into the joist to secure the plate. Remember to drill small pilot holes first to avoid splitting the wood.
Baluster Fixing Cup
The first baluster is fixed to the floor to prevent the tread rocking from side to side when you walk on it (all the treads are connected together by balusters for the same reason). The way it does this is with the use of a special metal cup. The cup gets screwed to the floor first then the baluster sits in the cup and a grub screw holds it firmly in place. The exact type of fixing to the floor varies depending on the type of floor. Here are a few examples:
Concrete floor
Drill into the concrete or screed, fit the plastic plug supplied and then screw the cup to the floor.
Wooden floor
Screw the cup directly onto the floor (preferably over a joist). Remember to drill a pilot hold first to avoid splitting.
Wall Brackets
The middle winder treads used in L and U shaped stairs (the ones shaped like a kite) need extra support because they overhang the carriage a lot further than the other treads do. In most cases the easiest way of providing this extra support is to bracket the treads to an adjacent wall and the illustrations below show some common scenarios of how you can do this. If however you do not have a wall to fix to please contact our technical sales team on 0800 098 8778 for some advice. There are a few alternative solutions for freestanding stairs but you will probably need to buy some extra components.
Solid walls
Find a suitable position, drill into the wall, fit the plastic plugs supplied and then screw on the bracket. Then screw the bracket to the tread but remember to drill a pilot hole first to avoid splitting the wood.
Stud walls
Prepare the wall to receive the bracket. Either fix a sheet of plywood under the plasterboard to allow fixings at any point or work out the exact position of the bracket and fit a vertical stud if possible or a horizontal noggin between to studs if not. The idea being that the bracket has something solid to fix to rather than just plasterboard. Then position the bracket, screw it to the wall and screw the bracket to the tread. Remember to drill a pilot hole into the tread first to avoid splitting the wood.
Frequently asked questions for the Kompact Modular Stair by Arke
Can I specially order the Kompact Modular Stair in any other colours or wood types?
Can I specially order the Kompact Modular Stair in any other colours or wood types?
No. The Kompact modular staircase kit from Arke is only available in the standard colours. These are white, grey and black for the metal parts and a light or dark colour finish for the beech treads. If you are looking for alternative colours please email us at contact@staircasewarehouse.com with your requirements, and we will try to suggest an alternative product.
Will my new staircase conform to the building regulations?
Some staircase installations are subject to the building regulations. These are described in Approved Document K. It is important to understand that the regulations vary according to individual site circumstances and therefore you should check with the local authority that the installation you are planning is approved before purchasing a staircase. Staircase Warehouse is not responsible for ensuring the suitability of your installation for Building Regulations.
Should I specify the direction I want the stair to rotate when I order?
No. The Kompact modular staircase can rotate in either the clockwise or anti clockwise direction. The direction is determined during the assembly.
The staircase doesn’t reach my floor height - can I extend it?
The modular design of the Kompact allows you to extend the height by adding extra treads to the standard kit. You can also reduce the height by using fewer treads. Please see the assembled size table and stair plan drawing sections on the product information page for more information.
How long does it take to install the staircase?
If you have done your planning and preparation work beforehand, and your structural opening is formed the staircase should not take more than one day for two people to install fully.
Do I require any specialist tools?
The staircase has been designed to be installed by DIY’ers. No specialist tools are needed to install the Civik Zinc spiral stair. The standard tools that you will require are as follows; electric drill/ driver, spirit level, Allen keys 2.5, 3, 4, 5, 12mm, plumb line, spanners, 13, 17, 30mm, measuring tape, hacksaw, Phillips screw driver, mallet and dill bits.
Can Staircase Warehouse install this product for me?
Currently Staircase Warehouse does not provide an installation service. Although depending on your location, we might be able to put you in contact with a staircase installer please email us a contact@staircasewarehouse.com
How long will my stair take to arrive?
The delivery will normally take around 7-10 working days to arrive with you. The stair will be dispatched to you directly from the manufacturer in Italy. Every year the manufacturer closes for seasonal holidays in August and December. Around these periods delivery times will vary. Please contact us if you are in doubt.
| Delivery time | 10 working days |
|---|---|
| Main materials | Wood and metal |
| Balustrade style | Cables |
| Handrail material | Wood (rigid) |
| Treads | Wood material: Solid Beech, block laminated Thickness: 42mm Graded for evenness of colour: No Finish: Single (primer) coat of varnish Colours: Light or dark |
| Handrail | Material: Hardwood (beech) Flexible or rigid: Rigid Size and profile: 42mm squared Finish: Single (primer) coat of varnish Colours: Light or dark |
| Balusters | Material: Mild Steel Tube Diameter: 20mm Finish: Powder coated Colour: White, black or grey |
| Handrail to baluster connectors | Material: Hardwood (beech) Flexible or rigid: Rigid Size and profile: 42mm squared Finish: Single (primer) coat of varnish Colours: Light or dark |
| Handrail to handrail connectors | Material: Plastic Finish: N/A Colours: Black or Grey |
| Centre carriage | Material: Plastic Finish: N/A Colours: Black or Grey |
| Instructions supplied | Written and DVD |
| Accessories available | Colours: White, black or grey Finish: Powder coated Material: Steel |
