Pre-Engineered Steel Industrial Buildings & Prefab Industrial Metal Structures

For single-storey and low-rise industrial buildings up to approximately 30 m clear span, pre-engineered steel frame construction offers faster erection, lower structural cost, and greater flexibility for future modification than concrete frame alternatives. Concrete construction requires sequential on-site pours and cure periods for each structural level, extending the programme significantly. Steel components arrive pre-fabricated and bolt together directly, reducing on-site construction risk and compressing the erection phase. Both systems can accommodate heavy crane loads and equipment foundation reactions — the programme and cost advantages of steel over concrete are most pronounced for single-storey heavy-span industrial buildings, which is where pre-engineered steel is the dominant choice globally.

For light crane systems up to approximately 10–15 tonnes, retrofitting crane provisions to an existing frame is sometimes feasible, depending on the original column section sizes and foundation design. For crane systems above 20 tonnes — and particularly for 30-tonne, 50-tonne, or heavier double-girder bridge cranes — the primary column section, bracket geometry, and foundation anchor bolt layout must be designed from the outset to carry the combined static and dynamic crane loads. Attempting to retrofit a heavy crane system to a frame not originally designed for it typically results in structural inadequacy requiring column replacement or reinforcement — both operationally disruptive and significantly more expensive than the original crane-integrated design. We treat crane capacity as a gating design input and will not issue structural drawings for an industrial building without confirming whether a crane is required.

Corrosion protection is specified based on the ISO 9223 corrosivity classification of the operating environment, determined by factors including ambient humidity, temperature cycling, exposure to chemical process media, proximity to coastal areas, and airborne contaminants such as ore dust, fertiliser, or cleaning agents. C1–C2 environments are dry indoor conditions with minimal chemical exposure. C3 covers industrial settings with moderate humidity and occasional chemical contact. C4 applies to high-humidity industrial environments with consistent chemical exposure, including food processing and coastal manufacturing. C5 applies to chemical, mining, and coastal facilities with aggressive chemical or salt-laden atmospheres. We confirm the corrosivity classification at requirements intake and specify the coating system accordingly. For C4 and C5 environments, the correct coating system at fabrication is substantially less expensive than remedial recoating under production conditions.

Bay spacing — the centre-to-centre column distance along the building’s length — determines where columns appear in the floor plan, which directly affects how process equipment, conveyors, material handling routes, and personnel pathways can be arranged. In a multi-bay industrial complex, the column grid must be planned concurrently with the preliminary process layout, not independently. We ask clients to share a preliminary equipment arrangement drawing or process flow diagram at requirements intake so that the column grid can be positioned to avoid interference with production line transfers, overhead crane coverage zones, and material handling corridors. A column grid that does not account for the process layout creates production constraints that persist for the operational life of the facility.

To produce an initial structural drawing and detailed price proposal within 3 business days, we need: industrial use type, building footprint dimensions and required bay configuration, overhead crane specification (rated load, crane span, duty class) or confirmation that no crane is required, heaviest single equipment weight and approximate foundation footprint if known, description of the corrosive environment, site country and city, and target operational start date. Equipment load data does not need to be finalised at this stage — preliminary estimates are sufficient for an initial structural concept and cost range, with final confirmation at the design sign-off stage.

Yes, provided the standardised unit design is confirmed before the first bay is fabricated. Industrial park developers who need a repeatable building module — a standard bay width, eave height, crane provision, and end-wall configuration that can be replicated across multiple tenants — benefit from declaring the replication requirement at the outset. The first unit’s structural drawings can be issued with end-wall provisions designed for expansion bay attachment, and subsequent bays can be fabricated against the same drawing set with only site-specific load zone amendments. This approach reduces both engineering cost per unit and fabrication variation across the park.