10mm Flat Glazing Packers

10mm Flat Glazing Packers are narrow plastic shims designed for accurate spacing, levelling, and support when fitting glazed units, doors, conservatories, and curtain walling systems.

With a 10mm width and 100mm length, these packers are suitable for applications where a slimmer packer is required compared with standard 20mm, 24mm, or 28mm flat glazing packers.

Made from polypropylene, they provide firm, non-compressible support under load and help installers achieve consistent alignment during glazing work.

Why installers choose 10mm Flat Glazing Packers:

• Ideal for narrow glazing channels and tight fitting areas
• Helps level and support sealed units during installation
• Provides consistent spacing for accurate alignment
• Durable, non-compressible, and resistant to moisture
• Suitable for glazed units, doors, conservatories, and curtain walling

These packers are especially useful where a standard-width glazing packer is too wide for the available space, but reliable support and adjustment are still required.

What the 4mm Thickness is Used For

4mm – General Levelling & Medium Gap Filling

The 4mm thickness is useful where a moderate adjustment is needed during glazing installation. It provides more lift than thinner packers while still allowing precise positioning of the glass unit or frame section.

Best for:

• Medium spacing adjustments
• Levelling glazed units
• Supporting units in narrow glazing channels
• Correcting uneven gaps during installation
• General trade glazing work