What responsibilities remain with the client when purchasing a steel frame house kit?

The client’s remaining responsibilities are the legal, technical and site-preparation tasks that fall outside the agreed steel frame kit supply. A kit quotation should be read alongside its drawings, specifications and exclusions so that the client can identify which activities are included, which must be arranged separately and which require coordination between several contractors.

Confirm the scope of the kit. A steel frame kit may cover the frame, connection details, fabrication information and defined fixings, but it does not automatically include every component needed to create a completed dwelling. Check whether the package includes items such as secondary steelwork, cold-formed sections, bracing, holding-down bolts, cladding rails, roof members, temporary stability measures or installation. The client should also confirm whether calculations, design amendments and revisions resulting from changes to the project are included or charged separately.

Provide accurate project information. The frame is designed around the information supplied for the building. The client should make sure that dimensions, floor levels, roof geometry, openings, intended loads and the position of adjoining structures are correct before manufacture. Changes made after approval can affect connection details, member sizes, foundations and delivery arrangements. Any proposed alteration should therefore be referred to the designer before work proceeds rather than altered on site.

Arrange the supporting construction. The steel frame depends on accurately formed and positioned supporting works. The client, or the contractor appointed by the client, must ensure that the foundations, ground beams, slabs, masonry supports and other bearing points are constructed to the required design information. This includes checking levels, dimensions, reinforcement, concrete strength and the location of holding-down bolts where these are part of the installation. A frame should not be erected on the assumption that minor discrepancies can always be corrected during assembly.

Ground conditions can also require specialist input. A site investigation may identify made ground, variable bearing capacity, contamination, groundwater or existing obstructions. Where such conditions affect the foundation solution, the client must ensure that the appropriate engineer or contractor reviews them and that the agreed design reflects the actual site rather than relying solely on standard assumptions.

Coordinate the wider design team. The steel frame must align with the architect’s drawings, structural calculations, building services and the construction methods used by other trades. The client should establish who is responsible for coordinating penetrations, service routes, stair openings, chimney or flue positions, rooflights, door and window openings, and interfaces with masonry or timber elements. This is particularly important where several designers produce separate packages.

Manage permissions and statutory procedures. The client must ensure that the project has the permissions and approvals required for the proposed work and that the approved drawings remain consistent with the frame being manufactured. Building control involvement, inspection stages and completion documentation should be agreed with the relevant professionals. Other matters may also apply to a particular site, including conditions attached to a planning approval, work affecting a shared boundary, listed-building controls or restrictions in the property title.

Prepare the site before delivery or erection. The site should be clear, stable and suitable for the planned sequence of work. The client needs to coordinate the removal or protection of obstructions, confirm where materials can be placed, and provide a suitable route from the public highway to the working area. The route should be assessed for width, height restrictions, gradients, turning space, overhead cables, soft ground and nearby buildings. If lifting equipment is required, the ground and set-up area must be suitable for it.

Where the supply agreement does not include site management, the client also needs to arrange safe working conditions, welfare facilities, site security and coordination with other contractors. Materials should be protected from damage, unauthorised movement and unsuitable storage conditions. The agreed delivery and erection method should identify who is responsible for unloading, handling and temporary support; these duties should not be assumed from the fact that the frame has been purchased as a kit.

Arrange connections to the property. Incoming electricity, water, drainage, communications and other services remain a client-side coordination matter unless specifically included in the contract. Their routes and entry points should be resolved before foundations, slabs and external walls are completed. The client should also establish who will provide temporary supplies needed during construction and who will install, test and certify permanent services.

Keep records and communicate decisions. The client should retain the quotation, approved drawings, structural information, revisions, delivery notes and records of inspections. Decisions affecting the frame should be issued through the agreed point of contact so that the current information is clear to the supplier and site team. Verbal changes, incomplete dimensions or conflicting drawings create avoidable uncertainty about what is to be manufactured and installed.

For a supply-only purchase, the client normally has a greater role in appointing the erection contractor and coordinating the frame with the rest of the build. If an erection service is included, the client’s duties do not disappear: the site still has to be ready, the supporting works must be suitable, access and lifting arrangements must be available, and other trades must be kept clear of the installation sequence. The precise division of responsibility should be recorded in the quotation and contract before manufacture begins.