GLASS GUIDES · 4 MIN READ

Curved Tempered Glass: Design and Ordering Guide

Coordinate geometry, processing, visual expectations and framing before a curved panel enters production.

Insights•Glass Guides•Jade Pure Technical Team•23 September 2026•4 min read

Curved tempered glass is produced around a defined geometry, glass make-up and support condition. Small changes to radius, edge length or hole position can affect tooling, feasibility and installation, so the design must be controlled before production begins.

Describe the geometry completely

A useful drawing identifies the bending axis and distinguishes the glass surface used for dimensions. Depending on the shape, the supplier may need radius, diameter, chord, arc length, rise, straight-edge lengths, tangent points and the direction from which the panel is viewed.

For conical, J-shaped, S-shaped or multi-radius panels, provide a 3D model together with controlled two-dimensional drawings. Templates can support verification but should not replace essential dimensions unless the production method has been agreed.

Coordinate the glass make-up

Glass type, nominal thickness and heat-treatment requirement.
Single curved pane, curved laminated glass or curved insulated unit.
Interlayer type, colour and exposed-edge condition for laminated products.
Coating, frit or pattern position relative to the curve.
Required safety, structural and visual standards.

Minimum and maximum practical radii vary with glass thickness, dimensions, shape and equipment. Do not finalize framing or order hardware until the proposed geometry has been reviewed by the fabricator.

Set holes and edge work before tempering

All drilling, notching, cut-outs and edge work must normally be completed before heat treatment. Dimension hardware from stable datums and show the relationship between holes, edges and tangent points. Confirm countersink direction and identify any edge that will remain visible after installation.

Discuss tolerances and visual quality

ShapeAgree radius, chord, arc, bow and twist tolerances appropriate to the panel.

SizeConfirm finished edge dimensions and how they are measured on the curved surface.

OpticsReview roller wave, anisotropy, local distortion and reflections under expected viewing conditions.

LaminationDiscuss edge alignment, interlayer appearance and any offset between plies.

Insulating unitsCoordinate spacer alignment, seal depth and compatibility with curved frames.

Plan packing and installation early

Curved panels require racks or crates that support the intended orientation and avoid point loading. Provide site access, lifting method and storage limitations. Installation frames should accommodate agreed tolerances without forcing the glass into position.

Information to include with an inquiry

PDF drawing and 3D model
Bending axis and viewing direction
Complete geometry
Glass make-up and processing
Hole and notch details
Required quantity and spares
Applicable standard
Packing and destination

Design principle: obtain a fabrication review before freezing the supporting frame. Curved glass and framing should be coordinated as one system.