| Manufacturing capability | Check whether the supplier can explain its processes for cutting, forming, welding, surface finishing, and assembly, as applicable to the proposed rack. | Process flow, production-site photos or video, equipment list, and records showing how in-process inspections are performed. | Compare the documented process with a live or recorded production walkthrough. Confirm which operations are performed in-house and which are subcontracted. |
| Materials and traceability | Confirm the specified steel, aluminum, or other materials match the design and intended use. Ask how incoming materials are identified and tracked. | Material specifications, purchase records, and—where required by contract—material inspection documents such as an EN 10204 inspection certificate. | Check that material grades and thicknesses stated in the quotation, drawings, and inspection records are consistent. EN 10204 describes types of inspection documents; it is not a product-quality certification. |
| Structural stability and load capacity | Review the rack’s declared load capacity, intended loading arrangement, stability, joints, and any risk of tipping during normal use. | Engineering drawings, stated load limits, test method, test results, and details of the test configuration. | Request a sample or witnessed test using the agreed loading arrangement. Set acceptance criteria in writing; do not assume a load rating applies to every configuration. |
| Welding and assembly quality | Look for consistent joints, secure fasteners, accurate alignment, and the absence of sharp edges or loose components. | Inspection checklist, assembly instructions, defect-handling procedure, and photographs of finished units. | Inspect a production sample and verify that it assembles as specified. Agree on acceptable workmanship and defect limits before mass production. |
| Surface finish and corrosion protection | Identify the finish required for the rack’s environment, such as powder coating, plating, or another specified treatment. Confirm preparation and coating steps. | Finish specification, color reference, coating-process details, and relevant test reports if corrosion performance is part of the purchase requirement. | Inspect finish coverage, adhesion, color consistency, and exposed edges. If salt-spray testing is required, agree on the method and acceptance criteria; ISO 9227 and ASTM B117 describe test methods, not a universal pass duration for every product. |
| Customization and design control | Assess the supplier’s ability to adapt dimensions, tile samples, shelving, signage, colors, branding artwork, and modular features to the approved brief. | Dimensioned drawings, material and finish samples, revision history, prototype schedule, and written approval records. | Approve a prototype or first article against signed drawings before production. Confirm who owns the design files and how changes are authorized. |
| Tile protection and usability | Check that sample supports, dividers, edges, and contact surfaces suit the tile sizes, thicknesses, weights, and display angle specified for the project. | Sample layout, compatibility details, loading instructions, and packaging or handling guidance for tile samples. | Fit representative tiles into the rack and check that they are stable, easy to view, and removable without unintended contact damage. |
| Quality management | Determine whether quality checks cover incoming materials, production stages, final inspection, and corrective action. | Inspection records, nonconformity procedure, corrective-action examples, and a current ISO 9001 certificate if the supplier claims certification. | Verify any certificate with its issuer or certification body and check its scope and validity. ISO 9001 concerns a quality management system; it does not certify a particular rack or guarantee its performance. |
| Regulatory and market compliance | Identify the destination market and the rules that apply to the product, its materials, packaging, and any electrical components. | Applicable declarations, test reports, material disclosures, and a written explanation of which requirements apply to the supplied configuration. | Do not treat RoHS or REACH as generic rack certifications. RoHS applies to covered electrical and electronic equipment; REACH obligations depend on substances and articles placed on the EU market. Confirm applicability for the specific product and market. |
| Packaging and transport readiness | Review protection against scratches, impact, moisture, and movement in transit, as well as packing efficiency and assembly requirements. | Packing specification, carton dimensions and weights, assembly instructions, and any transit-test reports required by the buyer. | Inspect a packed sample or conduct an agreed shipment simulation. Confirm the packaging method and damage responsibility in the purchase terms. |
| Production control and delivery | Check how the supplier plans production, monitors progress, manages changes, and handles delays or shortages. | Production schedule, milestone updates, order change procedure, and final inspection or pre-shipment inspection plan. | Use written specifications and approval checkpoints. Tie shipment release to the agreed inspection criteria rather than relying only on verbal assurances. |
| Quotation and total cost | Compare the full scope, including tooling, prototype charges, finishing, packaging, inspection, spare parts, and shipping terms. | Itemized quotation, payment terms, Incoterms® rule and named place, lead-time assumptions, and a list of exclusions. | Compare like-for-like specifications and delivery terms. Clarify whether quoted costs include sample approval, export packaging, and required testing. |
