Image: catalog design illustration, not a completed-project photograph. Final configuration is confirmed in the approved specification.
Identify the fence you are modifying
For a retrofit, begin with the host fence manufacturer, model, installation instructions, and available drawings. Photograph the posts, upper rail, board interfaces, caps, and corner conditions. Do not order from the overall bay width alone: two composite fences can have similar appearances and entirely different channels or retention methods.
Confirm whether the decorative insert replaces upper boards within the existing height or extends the fence above its current top. Additional height changes the assembly and may require different posts, connections, foundations, or local approvals. Have the responsible designer review the existing condition before promising the owner a simple add-on.
Measure visible size and hidden engagement separately
The visible opening is not necessarily the manufacturing size. Record channel mouth width, internal depth, rail engagement, frame thickness, and required assembly access. Measure several bays and note out-of-square conditions. Existing posts can vary enough that one assumed insert length becomes a poor fit across the entire run.
- Show the clear opening and the overall insert dimensions on a section and elevation.
- Identify the border hidden inside channels and the pattern that remains visible.
- Define end clearances, retention details, and any gaskets or spacers required by the design.
- Mark top, bottom, front face, and panel sequence where the pattern is directional.
Fiberdeck's BOSTON instructions illustrate how decorative modules, profiles, and movement allowances are coordinated within one proprietary system. Use the actual host-system requirements for your project; do not copy another manufacturer's dimensions into an EONE order without a compatibility review.
Resolve slope transitions and pattern ends
For a stepped fence, schedule each bay's elevation and align the topper with that bay's approved rail arrangement. A rigid laser-cut insert does not rack simply because the ground slopes. A sloping host frame may require a purpose-designed insert and connection, reviewed before cutting.
Ask how the pattern should finish at short bays, corners, and gate approaches. A Greek Key Border may need a balanced end treatment, while a Tulip Bud Lattice may need a revised repeat rather than an arbitrary crop. EONE can review custom lengths, heights, pattern proportions, and interfaces against the measured layout.
Review the assembled fence, not just the strip
Confirm material, finish, supporting rails, fasteners, and the load path into the posts. An open topper still receives wind load. Do not rely on composite boards alone as structural supports unless the host system's approved design specifically provides for that arrangement.
For pool-related work, the CPSC guide highlights the importance of openings and climbability. Obtain local review of the modified assembly. Decorative cutouts and added rails can change its behavior, and a taller appearance does not establish compliance.
Order a matched package and plan receiving
Approve a sample with the actual receiving channel when possible, plus the agreed finish reference. List inserts, frames, retaining parts, caps, and fasteners as included or excluded items. Door-to-door or site delivery can be arranged under the quote, with access, receiving hours, package dimensions, and unloading resources confirmed in advance. Installation, crane service, duties, and every accessory are not automatically included.
Review the metal topper designs, request a fit sample, and send the bay schedule and host-fence sections for project review.