Cube-shaped spatial systems: architectural volume and estimated cost
Cube-shaped rack, often called a lamella, is a metal profile with a pronounced rectangular or square cross-section. Historically, this engineering product was used mainly in interiors to create designer suspended ceilings in shopping malls, but in recent years it has made a real aesthetic revolution in exterior architecture. Exteriors of buildings decorated with a cube-shaped rack instantly acquire additional physical volume, deep relief, and create the impression of an infinite perspective thanks to the play of light and shadow.
The technical parameters of this product are quite strict, which guarantees perfect geometry. On the production lines of the Mehbud plant, cube-shaped racks are produced with a standardized base width of 34 or 35 mm. The height of the profile itself is variable and amounts to 42, 60, 68, 80, 100, or 105 mm. The standard length of one cube-shaped lamella reaches 3 meters. The installation technology of a cube-shaped rack differs radically from cassettes or linear siding. It is fixed not to flat guides, but to special load-bearing traverses (stringers) with pre-stamped grooves, which are rigidly attached to the main metal frame of the SVF. The fixation step (distance between adjacent lamellas) can be 50, 100, 150, or 200 mm. Thanks to such an open structure, the facade looks extremely light and weightless visually, and the inter-rack space provides ideal free air circulation, reducing the wind load on the load-bearing structures to a minimum. The cost of the materials themselves directly depends on the density of the step and the height of the profile, as this determines the consumption of running meters of the rack per square meter of area.
Table 3. Dependence of the cost of cube-shaped rack materials on the installation step
| Lamella size (WxH, mm) | Installation step (mm) | Rack consumption per 1 m² | Declared cost (UAH/m²) |
| 35х35 | 50 (dense step) | 20 linear meters + traverse | 1200 |
| 35х60 | 100 | 10 linear meters + traverse | 950 |
| 35х100 | 100 | 10 linear meters + traverse | 1500 |
| 50х50 | 100 | 10 linear meters + traverse | 1100 |
| 85х35 | 150 | 7 linear meters + traverse | 850 |
| 85х35 | 200 (sparse step) | 5 linear meters + traverse | 650 |
The material is made of corrosion-resistant galvanized steel. Cube-shaped systems, especially decorated with a wood texture, have become an integral attribute of decorating the entrance groups of elite suburban cottages, representative commercial offices, and elite restaurant complexes. The facade belongs to the class of low-combustible materials (or completely non-combustible, depending on the configuration and thickness of the metal), which guarantees the highest level of fire safety.
Pricing for installation works with a cube-shaped rack is composite. Although open price statistics often cite the cost of rack installation at the level of 320–370 UAH/m², these figures predominantly reflect the cost of installing the rack in interiors on the ceiling. According to open data, when forming a demonstration estimate for an area of 100 m² (excluding the subsystem for the external facade), the costs will amount to about 57,375 UAH for materials and 32,000 UAH for the installation works of fixing the lamellas themselves. However, the use of this system on the exterior requires the full installation of an SVF frame (work from 100 to 230 UAH/m²), installation of insulation (from 60 to 300 UAH/m²), as well as work at a significant height, which requires the rental and installation of scaffolding (from 80 to 120 UAH/m²). Accordingly, the comprehensive installation of a facade made of a cube-shaped rack in the capital objectively exceeds the mark of 1000–1200 UAH/m² exclusively for the labor costs of the contracting organization.
In the context of key cities, interesting patterns are observed. Kyiv accumulates the highest concentration of objects using a cube-shaped rack. Continuous demand for designer and non-standard solutions keeps prices for installation works at a premium level. Complex engineering nodes, such as seamless transitions of the rack from the ceiling of a canopy to a vertical wall, creating continuous lines on the facade, and integrating hidden architectural lighting between the lamellas, are priced by companies using increased complexity coefficients. Lviv’s architectural environment is actively introducing the cube-shaped rack into large-scale revitalization projects of old industrial zones and the construction of modern IT clusters. The cost of installing facade structures here is held at a stable level of about 1198 UAH/m². In Dnipro, the use of cube-shaped lamellas on the facades of mass development is just gaining popularity, while overall prices for the installation of any suspended structures are more loyal, starting from 935 UAH/m².