44mm Flat Glazing Packers

44mm Flat Glazing Packers are extra-wide plastic glazing shims designed for installations where a standard-width packer may not provide enough contact area.

With a 44mm width and 100mm length, FP44 packers give installers a broad support platform beneath the glazed unit. This can be useful in wider glazing rebates, larger frame systems, and applications where the unit benefits from a wider base support point.

Made from polypropylene, these packers are rigid, durable, and moisture-resistant. They help maintain the correct position of the glass while providing consistent support during and after installation.

Why installers choose 44mm Flat Glazing Packers:

• Extra-wide 44mm profile for broad unit support
• Useful for wider rebates and larger glazing systems
• Helps create a stable base beneath sealed units
• Suitable for windows, doors, conservatories, and curtain walling
• Rigid polypropylene construction for reliable support

These 44mm glazing packers are a practical choice where a wider flat packer is required, but the installation does not need the full 1mm–6mm thickness range available in some other sizes.

What Each Thickness is Used For

2mm – Light Adjustment & Slim Spacing

Used where a small amount of extra height or correction is needed.

Best for:

• Minor levelling work
• Light spacing in wide rebates
• Small corrections under glazed units
• Fine adjustment during installation

3mm – Everyday Wide-Channel Packing

A useful general-purpose thickness for regular glazing work.

Best for:

• Standard sealed unit support
• General window and door installations
• Routine spacing and levelling
• Controlled packing in wider channels

4mm – Medium Lift & Gap Correction

Used when the unit needs a more noticeable adjustment or a firmer support point.

Best for:

• Medium gap filling
• Levelling larger glass units
• Supporting units in wider glazing rebates
• Correcting uneven base areas

5mm – Stronger Support for Larger Gaps

Provides additional lift and support where more packer height is required.

Best for:

• Larger gaps beneath sealed units
• Heavier glazed sections
• Door and conservatory installations
• Base support where a wider packer is preferred