Resposta curta: use the cutout drawing for the exact shower hinge and glass assembly. Hole diameter, notch shape, edge distance and position are model-specific; there is no universal shower-hinge cutout template or drilling tolerance.

Coordinate the hardware drawing and glass fabrication drawing before ordering. Once glass has been heat-treated, do not drill, cut, notch or grind it in the field. Changes to the glass preparation must be resolved with the glass processor and hardware supplier before fabrication.

Diamond core drill cutting a hole in a glass panel with coolant

Confirm the glass preparation sequence

Glass sizing, edge work and required holes or notches must be completed at the appropriate fabrication stage before heat treatment. The NGA Frameless Shower Enclosure Manual covers shower-glazing design and installation considerations; ASTM C1048-25 is the specification for heat-strengthened and fully tempered flat glass. Confirm the specific product and project requirements with the fabricator.

Build the cutout drawing from the hinge model

The approved drawing should identify the hinge model and revision, panel orientation, finished glass dimensions, hole or notch geometry, dimensions from named datum edges, edge distances, glass thickness, hardware side and any left/right handing. Use the hinge manufacturer’s drawing and the glass processor’s capabilities; do not scale a photograph or copy a cutout from a similar-looking hinge.

Technical drawing of a glass panel with hole positions beside a caliper

Set tolerances with the supplier and glass processor

Position tolerance depends on the hinge design, fitting clearance, glass-processing method and the rest of the enclosure layout. Ask the hinge supplier to state the acceptable cutout dimensions and the processor to confirm achievable tolerances for the actual glass and edge work. Record the units, datum points, revision and approval in one controlled drawing.

Do not create a generic edge-distance rule or tolerance stack from unrelated products. If the hinge drawing, glass schedule and enclosure drawing disagree, resolve the conflict before releasing the panel for fabrication.

Pre-fabrication review checklist

  • Exact hinge model and current drawing revision are identified.
  • Glass type, thickness, panel dimensions and handing are confirmed.
  • Every hole, notch, edge and datum dimension is explicitly shown.
  • The glass processor has confirmed the drawing and its tolerance capability.
  • The assembled hinge, gasket and fixing components match the prepared glass.
  • Any change after approval is reviewed before glass production begins.
Tempered glass edge inspected under polarised light

Perguntas Frequentes

O vidro temperado pode ser perfurado no local?

No. Do not drill, cut, notch or grind heat-treated glass in the field. Have the glass processor and hardware supplier define the required preparation before the panel is made.

What is the minimum edge distance for a shower-hinge hole?

There is no single value for every hinge and glass panel. Use the exact hinge drawing and have the glass processor confirm the dimensions for the specified glass and fabrication method.

What diameter hole does a shower hinge need?

The required hole depends on the exact hinge, fastener, bushing and gasket arrangement. Confirm the model-specific drawing and approved glass preparation rather than using a typical diameter.

What tolerance should I allow for hole position?

Set the tolerance from the hinge fit requirements and the glass processor’s capability for the specified job. Record it on the approved drawing with units and datum edges; do not borrow a tolerance from another hinge model.

Resumo

Specify shower-hinge cutouts from the exact product drawing and the glass processor’s confirmed capability. Approve holes, notches, edge distances and tolerances before fabrication, and never treat a post-tempering field modification as an acceptable correction.

For model-specific reference, review the shower hinge collection, then contact Zimmor with the hinge model and drawing revision if you need product documentation before glass fabrication.