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26mm Flat Glazing Packers

26mm flat glazing packers for trade glazing work where a broader support surface is needed without moving up to 28mm packers. Designed for positioning, packing, and stabilising glazed units, these polypropylene packers are available in multiple thicknesses for accurate on-site adjustment.

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Product Overview

26mm Flat Glazing Packers are designed for installers who need a strong, reliable packing shim with a slightly wider contact area than 24mm packers.

Measuring 26mm x 100mm, these packers are suitable for supporting sealed units, correcting uneven gaps, and helping maintain the correct glass position during installation. They are useful across a range of glazing, door, conservatory, and curtain walling applications where controlled spacing is important.

Manufactured from polypropylene, FP26 packers are rigid, moisture-resistant, and made to retain their shape under load. This makes them suitable for professional glazing work where long-term support and consistent thickness are important.

Why installers choose 26mm Flat Glazing Packers:

  • Wider than 24mm packers for extra contact and support
  • Useful for packing glazed units in windows, doors, and curtain walling
  • Helps maintain correct glass positioning during installation
  • Strong polypropylene construction for dependable load support
  • Helps reduce the risk of uneven pressure points around the unit

These 26mm glazing packers are a practical option when you need a slightly wider flat packer but do not require the full width of a 28mm packer. The additional 8mm option also gives installers extra flexibility for larger gaps or heavier adjustment work.

What Each Thickness is Used For

1mm – Precision Packing & Small Corrections

Used where only a very small amount of adjustment is needed.

Best for:

  • Final positioning of glazed units
  • Fine gap correction
  • Small alignment changes
  • Combining with thicker packers for exact spacing

2mm – Light Spacing & Minor Levelling

A useful option for small gaps where a little extra support is required.

Best for:

  • Slight unevenness in the glazing channel
  • Light packing under sealed units
  • Minor levelling adjustments
  • Everyday fine-tuning on site

3mm – Regular Glazing Adjustment

A common middle thickness for standard installation work.

Best for:

  • General glazed unit positioning
  • Routine spacing and levelling
  • Supporting units in typical glazing jobs
  • Building up packer height when used with other thicknesses

4mm – Practical Medium Support

Used when a more noticeable correction is required without going to thicker packers.

Best for:

  • Moderate gap filling
  • Levelling units in uneven openings
  • Supporting larger glazed sections
  • General window and door fitting work

5mm – Stronger Packing for Larger Gaps

Provides more lift and support where the space under the unit is more substantial.

Best for:

  • Larger installation gaps
  • Heavier sealed units
  • Base support during glazing
  • Correcting more visible level differences

6mm – Heavy Adjustment & Base Packing

Used when a firm, thicker packer is needed for stronger support.

Best for:

  • Significant spacing requirements
  • Load-bearing support points
  • Heavier glass units
  • Uneven or deeper glazing channels

8mm – Extra Lift for Larger Spacing Requirements

The thickest option in this range, useful where a larger adjustment is needed.

Best for:

  • Bigger gaps under glazed units
  • Heavy-duty packing work
  • Raising units to the correct position
  • Applications where 6mm is not enough
Read more

Technical Specifications

Product CodeFP26
Dimensions 26 mm x 100 mm
Thickness range1-6, 8 mm
MaterialPolypropylene

🧾 Need Help?

For trade advice or assistance choosing the right packer thickness, contact us at support@glazingpacker.co.uk