Fibreglass grating - deflection tables

Moulded Fibreglass Grating

Deflection sheet for uniform load (300mm wide)

Slip Risk Classification based on Pendulum Test Value

Pendulum Value [Slip Risk]
0 – 24 [High]
25 – 35 [Moderate]
36 – 64 [Low]
65+ [Extremely Low]

Pendulum measurements were taken in 3 directions for accurate assessments.

Product Tested

Dry Reading

Wet Reading

Flat Sheet – Heavy Duty 74/71/74 64-65-64
Flat Sheet – Light Duty 70/73/74 65-68-68
Grating – Flat Surface 25mm 62/65/68 47-45-49
Grating – Gritted Surface 25mm 71/79/68 71-74-60

Slip Risk Classification based on RZ Microroughness Values

(applicable for water-wet, low activity pedestrian areas)

RZ Surface Roughness (microns) Slip Risk
Below 10 High
10 or above (but below 20) Moderate
20 or above Low

Flat Sheet Heavy Duty and Light Duty

Data could not be generated due to the level of roughness exceeding the range of this instrument. This suggests the measurement would be at least 100 and therefore a low slip risk. Flat Surface Grating 25mm RZ Surface Roughness 12.06 (mean) = moderate potential for slip.

Gritted Grating 25mm

Data could not be generated due to the level of roughness exceeding the range of this instrument. This suggests the measurement would be at least 100 and therefore a low slip risk. The test results presented relate only to the flooring samples under study at the time of testing. The performance of installed materials may change significantly during their lifetime: slip resistance is critically dependent on the level and type of contamination, application of the surface treatment, wear, maintenance and effective cleaning subsequent to installation. The full report from the Health and Safety Laboratory can be inspected and downloaded here.
  • "We were very happy with the work undertaken by Sui Generis. They created a bespoke solution to meet our needs, and finished the work within a week. All of their staff were very professional and I would recommend their services to anyone."

    BOC representative

    Sui Generis Fibreglass lining installation

  • "Sui Generis completed the work under extreme weather conditions, it was truly commendable the amount of work they managed to complete during breaks in the weather. The team was very responsive and completed the work to an excellent standard."

    Premier Foods representative

    Sui Generis Fibreglass lining installation

  • "The syrup room is 400m² and contains 18 tanks. We needed an expert team to come in; undertake minor repairs, prepare the existing quarry floor for lining, line the floor, and work around the tanks, all in just five days! The team from Sui Generis did a great job, and they got everything done – just like they said they would."

    Silver Spring representative

    Sui Generis Fibreglass lining installation

  • "At Yara we're an industry shaper, and safety is our primary concern. It was very important when awarding this contract to partner with a company whom we could trust to deliver to our exceptionally high standards. We have worked with Sui Generis in the past and would be very happy to employ their services again."

    Yara representative

    Sui Generis Fibreglass lining installation

5 good reasons to choose Sui Generis fibreglass grating...

  • Slip-resistant – preventing accidents
  • Ergonomic – better for your back
  • Safe – non-conductive properties
  • Economical – maintenance-free
  • Strong – 20+ year lifespan
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Sui Generis GRP fibreglass experts

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Our highly competitive work gives you the best quality results every time – every one of our operatives is highly skilled, well trained and takes exceptional pride in what they do. With Sui Generis, you can rely on effective, long-lasting work.

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When you choose Sui Generis to undertake work on your behalf, it always complies with and exceeds the standards required by relevant legislation. We always advise you what the regulations require before we start.

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We take your safety seriously, and that of all our people, whether we're at a small factory or a nuclear plant. We always adhere to stringent health and safety procedures at every stage – and comply with your own Heath and Safety policies.

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Every job we undertake is completed with your satisfaction in mind. We work hard to be the best at every task we tackle – and that's why over 90% of our customers return to us time after time.

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