It is unlikely that you feel comfortable when the stairs in the house creak and the steps sag. Everyone wants it to be beautiful, strong and durable. AT
So, the welding work is completed, the metal frame of the stairs is installed in its place and covered with a layer of protective primer. From below, it is tightly screwed to the concrete floor with the help of anchor bolts, from above it freely rests on the end of the opening in the ceiling. The weight of the structure reaches one and a half tons. In place of the steps for ease of movement and work, you can temporarily put wooden blocks.
Metal and wood are one
What are the advantages of steel over reinforced concrete? Modern stairs are not limited to simple geometric shapes. As a rule, they are structures with many spans and turns at various angles, part of which is a complex fence made of forged metal, tempered or special glass, wood, stone and other materials. Such stairs must have increased strength in order to withstand the weight of not only people moving along them, carried pieces of furniture, household appliances, but also a massive decoration of the fence, railings or handrails.
 According to the pre-made markup, the plinth panel, which decorates the stairs from the side of the wall, is fixed with “liquid nails”, and then screwed to the wall with screws. In the same way, the panel is installed and attached to the stringer on the outside of the stairs. This work is done after finishing the steps and installing the landing.
 The assembly of the step begins with the fact that the riser is glued into the groove on the underside of the tread with the help of “liquid nails”. It is connected to the tread on which it rests with two screws 6 mm in diameter through holes drilled in the tread along the center line of the joint.
 The tread is installed on a metal structure and attached from below with four screws with a diameter of 6 mm through holes previously drilled in the metal. This is how the connection of the tread and riser looks like from the end.
 The marked plate is cut to the desired size using a circular saw, the ends are finished with a grinder.
Products of a complex profile are usually made from prestressed reinforced concrete at house-building plants. Try to bring such a heavy and bulky structure into a house where floors have already been installed. Most likely, you won’t succeed. If you make such a staircase only from wood, then it will include massive and large-sized load-bearing elements and significantly limit the choice of architectural solution. Metal, on the other hand, gives an impressive staircase in size lightness and delicacy.
Any technology has its own specifics. The peculiarity of assembling the stairs on a metal stringer is that when welding the supporting frame at the installation site, it is very difficult to ensure the required dimensional accuracy. Therefore, careful measurement of the frame and fitting of parts is required. The ideal option is to perform all work related to metal processing in the factory and install the finished product in the span. AT
In the architecture of private houses in Russia at the end
 The landing slab is heavy and inconvenient for installation; when fitting and installing it, workers require not only physical strength, but also care and caution.
 After the installation of the steps, the embedded parts of the fence are installed. To do this, the necessary holes are drilled in the steps and the metal stringer according to the preliminary marking. Embedded parts are attracted by nuts from below.
 Next comes the turn of facing the frame of the stairs from below with drywall. Sheets pre-cut to size are attached to metal stringers with self-tapping screws.
 The plasterboard coating is puttied, after cleaning the surface with sandpaper, it is primed and painted with water-dispersion paint using a roller.
High cladding art
Any metal structure can be lined with wood and drywall, even if this was not provided for. AT
The ideal factory conditions we mentioned are often not available. And
How is the cladding attached to the metal structure? Usually, screws with embedded parts, self-tapping screws and “liquid nails” (glue) are used.
What kind of wood is preferable for making different parts? Solid hardwoods are good for cladding: oak, ash, beech, maple and even birch, both stained and natural. Glued wood, covered with several layers of Bona (Sweden) durable polyester varnish, is suitable for treads and landings: it does not warp or crack. The risers are best made from carpenter’s board, veneered with the same type of wood as the treads. The stringers and the wall are decorated with plinth panels made of solid wood of the same type. From below, the stairs are usually sheathed with drywall, which is then puttied, primed and painted in accordance with the designer’s recommendations.
 For embedded parts in the steps, you need to install sections of forged fencing. Then the sections are welded together, the welding spots are hidden by decorative fittings.
 And finally, the handrail is mounted. It is laid on the steel rail of the fence and screwed to it with screws through the existing holes.
 Part of the handrail at the place where the railing turns 180
 A carefully marked transition element is sawn off by hand, the end is leveled with a grinder. The handrail of the next flight of stairs is installed end-to-end with the transition element.The design of the steps, the shape of the grooves, the installation locations of the dowels and embedded parts can be different, they are determined both by the design documentation and by specific circumstances during assembly. At the factory, wooden treads and risers are made with an allowance for subsequent fitting against the wall. When installed on the frame, the adjacent part is adjusted. After careful measurement, the treads and risers are marked out, taking into account the unevenness of the wall plaster and the inaccuracies made during the welding and installation of the metal structure, after which they are sawn off to the required dimensions with a circular saw. Ends are polished. The landing is a massive wooden slab, the dimensions of which (in our case
A staircase designed and built according to all the rules of architecture,
Source: Ideas for Your Home Magazine#29