Acrylic Balustrade & Railing Infill Panels: Thickness, Fixing & Specification

A specification guide for acrylic balustrade and railing infill panels — the clear or tinted panels that fill a balustrade frame. It covers thickness, edges, fixing and what to confirm before a production order. Structural loading and code compliance stay with your engineer; we fabricate the panel to the specified drawing.

Where acrylic infill fits

Acrylic infill panels give a balustrade a frameless, glass-like look at about half the weight of glass, without shattering into fragments. They suit interior stairs, mezzanines, balconies and feature railings where the panel is captured in a frame or channel rather than structurally glazed.

Thickness & loading

Infill thickness is driven by panel span, the fixing/capture method and the imposed load your engineer specifies. As an orientation, captured infill panels commonly run 8–20 mm; larger unsupported spans or higher loadings move thicker. We fabricate 3–100 mm and size the panel after drawing and load review — the final thickness and any structural sign-off are your engineer’s call.

Edges, fixing & finish

• Edges diamond- or flame-polished where visible above the frame; flush where captured.
• Fixing channel-captured, point-fixed (drilled to your bracket pattern) or slot-in; we CNC the holes and cut-outs to drawing.
• Corners & profiles radiused or shaped; curved runs via cold bending (large radius).
• Grades clear, tinted or with a UV grade for exterior runs.

What to confirm before ordering

• Panel thickness and finished sizes (with your engineer’s loading)
• Fixing method and drilled/cut-out schedule
• Edge finish and grade (clear/tinted/UV)
• Quantity — production runs start at 20 pieces per design; 48-hour samples from an approved drawing