Linear Fire Stop 554

Linear Fire Stop 554

Linear Fire Stop 554 is a compressible strip designed for installation within static voids.

The Fire Stop provides up to 4 hours’ firestopping and is used in cases where the fire resistance of the horizontal deck is less than the wall.

Maximum void size to be filled = 50% of wall width.

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  • Length: 1200mm
  • Width (553): Wall width
  • Width (554): Wall width x 2
  • Up to 4 hours’ firestopping
  • Made-to-measure service
  • A range of thicknesses available
  • Easy to install

Thickness to suit voids from 10mm to 100mm.

Ordering Information Required:

1. Wall width

2. Actual void size

3. Total linear metres for job

Product Performance

553 Thermal

Linear Fire Stop Strip has been independently tested by BRE Global in accordance with BS 476 Part 20: 1987.


  • Installation of Linear Fire Stop must provide for a tight and accurate fit, whilst allowing for 5% compression

Lengths of Linear Fire Stop may be joined along the wall by careful and tight butt jointing. Installers may find a small plastic or metal ‘slip plate’ useful when fitting Linear Fire Stop between rough masonry surfaces.

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