
Metal Structures with Bolted Joints
StarModul is a patented system for constructing metal structures without welding at the joints, using mechanical connections that allow for modular, precise, and dry assembly.
Solutions for homes, industrial buildings, roofs, additions, solar structures, and custom projects.
STARMODUL STEEL STRUCTURES
Metal structures with bolted joints and no welding
StarModul is a patented system for constructing modular metal structures using bolted connections. The profiles are assembled mechanically, without welding the joints during installation, which simplifies construction and allows for the development of residential and industrial structures as well as custom projects.
Design, supply, or assemble your structure using a system designed to minimize on-site work, facilitate future modifications, and work with pre-fabricated components.

PATENTED SYSTEM
StarModul Bolted Metal Frame System
StarModul replaces welded joints with a set of connecting pieces and fasteners that position and connect the profiles. The structure is designed in advance and can be prepared to ensure a neater, cleaner, and more repeatable assembly process.
The system is suitable for structures of various sizes and configurations and offers solutions for tubular profiles and specific connections. Each project must be designed based on its loads, geometry, and conditions of use.
A Different Way to Build with Steel
Bolted joints
Mechanical connections designed to assemble profiles without welding the joints.
Dry assembly
Self-locking serrated grade 8.8 fasteners and standard tightening tools.
Modular system
The structure can be dismantled, modified, or expanded when the project allows it.
More than 100 configurations
A wide range of joints to accommodate different geometries, connections, and applications.
Projects in 3D
See our structures from the inside
Open in 3D the industrial buildings, warehouses and porches we have designed with the StarModul system. Remove the panels to see every column, beam and bolted joint.
Try it: switch the view or hover over a card.
- Rotate, zoom and measure in your browser, nothing to install
- Remove walls and roof to see every bolted joint
- Cut by floor, hide parts and share the link

Open in 3D1,050 m² industrial warehouse · GabonFootprint 30.9 × 31.3 m · height 10.3 m · 2 storeys
Open in 3D85 m² steel storage buildingFootprint 9 × 9.4 m · height 5.7 m
Open in 3D820 m² steel-framed building · Santa Cruz de TenerifeFootprint 21.4 × 38.2 m · height 5.4 m
Open in 3D330 m² industrial warehouseFootprint 10.5 × 30.2 m · height 6.5 mWHY STARMODUL
Advantages of Our Metal Structures
The system combines the properties of steel with the advantages of a bolted, modular design that is engineered to simplify various phases of the project.
More efficient assembly
Eliminating welding at the joints reduces the number of assembly steps and simplifies the process.
Cost Optimization
Fewer specialized operations, flexible logistics, and pre-assembled components can help reduce overall costs.
Modular and expandable
The structure can be disassembled or modified as long as the new configuration is compatible with the project.
Accuracy
Connectors help position the profiles and allow for the advance preparation of measurements, components, and documentation.
Recyclable and reusable
Steel is recyclable, and detachable connections make it easier to recover or reuse components.
Tailor-made design
The variety of connections makes it possible to construct frames, modules, roofs, homes, and special structures.
STARMODUL ONLINE STORE
Screwed Joints for Metal Structures
Discover a selection of StarModul connectors for assembling metal structures without welding. Check dimensions, prices, and availability directly from our online store.
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1010-01 Corner bracket connector – 10×10 cm tube
47,12€ (excl. VAT) Add to cart -

1010-02 L connector – 10×10 cm tube
28,64€ (excl. VAT) Add to cart -

1010-03D Right L connector with slope – 10×10 cm tube
34,94€ (excl. VAT) Add to cart -

1010-04 Double-slope L connector – 10×10 cm tube
41,24€ (excl. VAT) Add to cart -

1010-05 T connector – 10×10 cm tube
17,40€ (excl. VAT) Add to cart -

1010-06 T connector with straight outlet – 10×10 cm tube
24,88€ (excl. VAT) Add to cart -

1010-07 T connector with sloped outlet – 10×10 cm tube
23,78€ (excl. VAT) Add to cart -

1010-08 Double T connector with straight outlets – 10×10 cm tube
32,36€ (excl. VAT) Add to cart
Also in the shop: galvanised steel tubes · custom metal staircases
STRUCTURE KIT
Metal structures in kit form for self-assembly
For projects that aim to simplify construction, StarModul can supply prefabricated structures in kit form. The profiles, connectors, and components are organized to facilitate identification and assembly directly on-site.
- Profiles prepared according to the project design.
- Connections and corresponding fasteners.
- Components organized to facilitate assembly.
- Dry system, with no welding at the joints.
- Solutions for pergolas, garages, canopies, and custom projects.
HOUSING
StarModul Steel-Frame Homes
The StarModul system allows for the construction of structures for prefabricated homes, modular homes, additions, and light-frame buildings. The structure is custom-designed and can be combined with various options for exterior walls, insulation, and finishes.
Screwed connections facilitate a neat assembly and allow part of the process to be prefabricated before arriving on site, reducing unforeseen issues and improving control over the construction process.
3D CONFIGURATOR
Design your custom metal structure online
Use the StarModul 3D configurator to define an initial geometry for your structure and automatically obtain the information needed to continue the project.
- Visual configuration of the structure.
- List of required connections.
- Illustrative list of tubes and profiles.
- Estimated cost of the components.
- A foundation for studying a custom structure.
APPLICATIONS
Applications of StarModul Metal Structures
The system’s modular design allows it to be adapted to residential, industrial, and commercial projects, as well as auxiliary structures.
Housing
Structures for homes, modules, and additions.
Bungalows and Modules
Modular solutions for housing and lightweight structures.
Industrial buildings
Gantry systems, expansions, and solutions for industrial projects.
Solar panels
Metal structures for photovoltaic mounting systems and installations.
Garden and Outdoor Spaces
Pergolas, porches, canopies, and structural furniture.
Car Washes
Modular structures for car wash and service facilities.
Garages and carports
Metal garages, carports and vehicle shelters.
Custom-Made Structures
Customized solutions for specific needs.
Projects
Real projects with bolted steel structures
Homes, industrial buildings, extensions, porches and demountable structures built with StarModul joints. Each project explains what was built, which materials were used and how it was assembled.
HomesTurnkey home in Cambrils
Part two-storey, part single-storey, with a white panel façade, porch and pool.
View project
Industrial buildingsLattice-truss warehouse in Faura
Gable building with galvanised tube trusses, a red sandwich-panel roof and white façades.
View project
Custom structuresSecond-floor extension in Agramunt
A new floor on an existing house, with a galvanised tube frame and bolted joints.
View project
PorchesBolted steel porch in Guissona
A large porch over a house patio, with a panel roof and no welding.
View project
BungalowsRaised bungalows by a lake
Bungalows on concrete supports in the middle of nature, for the Grow It Modular project.
View project
Demountable structuresTemporary structure at a Formula 1 circuit
A covered terrace and glazed area assembled for an event and taken down afterwards.
View project
STARMODUL BLOG
Latest News on Metal Structures
Technical advice, construction systems, applications, and the latest developments in bolted steel structures, dry assembly, and industrialized construction.
Galvanised steel tube 100×100: sizes, weight and price
How to build an iron pergola without welding
How to build a steel roof structure without welding
Demountable trade show stand with a self-assembly system
StarModul Structure with Omegas at Parcmotor Castellolí
StarModul Structure for Leveling the Roof at Talleres Cuñat
Other solutions from the group
Cladding and homes for your steel structure
The group’s other websites cover the rest of the build: industrialised steel homes, sandwich panels for roofs and façades, aluminium composite panels and external wall insulation with a brick-slip finish.

Industrialised homes
Custom steel homes, as a kit or turnkey, built with the StarModul structure.
Visit casa-industrializada.com
Sandwich panels
Supply and installation of sandwich panels for roofs, façades and enclosures.
Visit panelsandwich.org
Composite panels
Aluminium composite panels cut to size for ventilated façades and signage.
Visit panel-composite.com
Brick-slip external insulation
External thermal insulation with a ceramic facing-brick finish, improving energy efficiency and the look of the façade.
Visit sate-caravista.com