Glass Doors: Types, Thickness, Designs, Fittings & Price Factors

Glass doors combine a moving pane with hardware, repeated human contact and exposed edges, so the door leaf, fittings and surrounding opening have to be planned together.

The best glass doors solution comes from matching the glass to the opening, support, hardware, safety needs and appearance. This guide groups the key decisions on one page so you do not need separate articles for every thickness or design variation.

Glass options for glass doors

• Toughened glass is widely used for frameless and framed doors when the specified system calls for it.
• Laminated or toughened-laminated constructions may be used where retention or other performance is required.
• Clear, frosted, tinted and printed finishes can provide different privacy and design effects.

The same application can use different glass types depending on whether the priority is safety, privacy, sound, solar control, appearance or cost.

How thickness should be chosen

Door thickness must work with the selected hinge, patch fitting, floor spring and panel dimensions. Heavy glass puts larger loads on hardware, so do not select thickness without checking the hardware system limits.

For toughened products, use the full toughened glass thickness guide to understand why nominal thickness is only one part of the decision.

Design and measurement factors

• Finished opening and floor level.
• Door width, height and swing direction.
• Single or double leaf.
• Frameless, patch-fitted, framed or sliding system.
• Handle and lock positions.
• Top/bottom pivots, floor spring or hinge system.
• Clearances around adjacent panels and walls.

Prepare a simple drawing showing finished sizes and where the glass is supported. If hardware passes through the glass, use the final fitting dimensions before manufacturing.

Safety and breakage behaviour

Doors are impact-prone because people walk through and handle them frequently. Use the safety glass and system required for the location, and make visibility markings or manifestations where appropriate to reduce collision risk with very clear doors.

Compare safety constructions in toughened vs laminated vs normal glass when post-breakage behaviour matters.

Hardware, frames and installation

• Patch fittings, pivots and floor springs.
• Wall-mounted glass hinges.
• Sliding tracks and rollers.
• Handles, locks and strike plates.
• Gaskets and seals.
• Top and bottom rails or framed systems.

Glass and hardware should be treated as one system. A good pane can still perform poorly if channels are uneven, fittings are misaligned, seals are missing or metal touches glass where a gasket should be used.

What affects the price

• Glass thickness and area.
• Number of holes/notches and polished edges.
• Hardware brand and finish.
• Floor cutting or closer installation.
• Side/fixed panels.
• Transport and installation labour.

Ask whether the quotation includes measurement, drawings, edge polishing, holes, hardware, transport, installation, sealants and taxes. Compare like-for-like specifications.

Common mistakes to avoid

• Choosing hardware after glass is already toughened.
• Forgetting finished floor height or floor spring box.
• Using a door wider/heavier than the fitting allows.
• Misplacing lock and handle holes.
• Comparing cheap hardware with tested branded systems as if they are equivalent.

Before you order

• Confirm finished width and height for each pane.
• Confirm glass type/build-up and nominal thickness.
• Choose colour, frosting or coating if required.
• Finalise holes, notches and cut-outs before toughening.
• Confirm hardware make/model and finish.
• State whether the quote is supply-only or supply-and-install.
• For safety-critical or structural systems, follow the approved design rather than a generic online rule.