Decision boundary
This guide decides: which system components and interface records belong in the enquiry and supplier return.
This guide does not decide: universal post spacing, ballast weight, anchor choice, foundation design, gate capacity or installation release.
Define the module and its connections.
Identify panel or barrier type, nominal dimensions, frame, infill, post or interlock, clamps, feet and any anti-lift or tamper provisions requested by the project. Ask for the exact offered drawing rather than copying a typical arrangement. Corners, ends, level changes and transitions may need different components and must have their own run identifiers.
Treat bases, anchors and braces as site interfaces.
Record soil, slab, pavement, roof or internal floor condition; fixing restrictions; drainage; underground services; available rear footprint; vehicle paths and trip hazards. A supplier may propose feet, ballast, anchors or braces, but the responsible designer must review the arrangement against project loads and substrate information. No generic table on this site releases that decision.
Schedule openings and operations from the start.
Give pedestrian and vehicle gates clear-opening, direction, frequency, hardware, locking, emergency and accessibility inputs. Show gate zones, crossings, corners and nearby obstacles on the same layout used for quantities. Assign who installs, checks, moves, closes and repairs each opening so the hardware package and operating plan are comparable across offers.
Identify connections before accepting substitutions.
Ask the supplier to identify both parts at each connection, not just the name of the clamp or accessory. Record the offered component reference, the profile and dimensions of the parts it joins, its position on the layout, and any dedicated tool or key included in the supply. If an alternative component is offered, request a marked revision identifying the change and the drawing or product instruction for that combination. Keep compatibility as an open question until the responsible supplier or designer has answered it for the offered configuration. A similar appearance or shared accessory name is not a documented compatibility confirmation.
Carry component references into the spare-parts list.
For gate fittings and replacement parts, use the same component references as the offered schedule. Ask which items are included, which are optional spares, and which document revision identifies them. A photograph can help identify a question but does not replace the component specification. Structural suitability and installation approval remain outside this procurement checklist.
Branching duty ledger
Choose the next review route from the actual condition. The ledger is not a rating, approval or installation instruction.
Project-input schedule
Use the same revision for every supplier. Unknown values remain open items with an owner and due date.
What a usable supplier response returns
The response identifies the exact offered configuration, component quantities, drawing basis, materials or finishes, packing and document register. It separates confirmed values from assumptions, options, exclusions and deviations. Project safety, structural, electrical, traffic, accessibility and impact decisions stay with their responsible authorities.
Questions to close
- Does the offer list every component and quantity basis?
- Which site information controls the proposed support?
- Are corners, ends and level changes shown separately?
- Do gates include operating and accessibility inputs?
- Who reviews anchors, ballast, braces and the substrate?
- How are missing or damaged parts identified before reuse?
Authoritative reference boundary
These sources support scope and decision boundaries. They do not certify a XIEHENG product or approve a project.