R1-SG5

Frequently asked questions about this timetable

• Which type of anti-slip (top layer) should I choose?

  All FlexxCon GRP gratings are equipped with a non-slip surface as standard.
  The degree of non-slip depends on the type of top layer you choose, but each grating is designed to be safe to walk on.

  Our gratings comply with current safety and slip resistance standards, including DIN 51130, which determines the R value (anti-slip class). Link to standard 51130.

  At FlexxCon, we distinguish between three main types of top layers:

  Top layer	Name	Features/application	Class
  M – Meniscus (concave surface)	Slightly wavy surface created during production.	Provides a firm industrial grip with a tactile profile. Very easy to clean, even when covered in oil or mud. Often used in technical areas, platforms and places where ease of maintenance is important.	R13
  Q – Quartz grit (anti-slip grit layer)	Surface with scattered quartz grit.	Also very high anti-slip value, even when wet or dirty. Often perceived as more comfortable to walk on due to the slight cushioning effect of the grain structure. More difficult to clean when oil or dirt gets between the grains. Suitable for outdoor installations, wet or slippery environments, industrial and maritime applications.	R13
  S – Smooth (smooth surface)	Smooth surface without profile or grain.	Used for screens, walls or non-load-bearing applications. Easy to clean, but not suitable as a walking surface.	–

  👉 Not sure? We are happy to advise you on which anti-slip coating best suits your situation and safety class.

• What type of mesh do I need?

  The correct mesh size for your GRP grating depends on the application, the desired flow rate and the requirements in terms of safety, comfort and load. The mesh indicates the distance between the bearing bars (the centre-to-centre distance, or C.T.C.). The free opening is the actual space between the bearing bars.

  At FlexxCon, we use the following standard mesh types:

  Mesh type	Mesh spacing (C.C.)	Free opening	Application/characteristics
  19×19 mm	19 mm	Approx. 13 mm	Fine mesh grating, prevents small objects from falling through. Suitable for installation rooms, platform edges and safety zones.
  38×38 mm	38 mm	Approx. 31 mm	Most commonly used mesh; good balance between strength, weight and permeability. Suitable for general industrial applications.
  50×50 mm	50 mm	Approx. 43 mm	Coarser mesh, suitable for industrial applications. Used where there is no risk of small objects falling through.

  How do you choose the right mesh?

  The choice of the right type of mesh depends on:

  • the safety requirements (fall-through, chop-proof, contact with tools or liquids),
  • the desired light and liquid permeability,
  • and, if applicable, aesthetics or connection with other gratings.

  During the design phase, we recommend also considering the position of open or closed meshes on the outer edge.

  👉 Still can’t decide? We are happy to help you select the right mesh.

• Which type of grid do I need?

  At FlexxCon, we use different grate types to clearly specify the properties of our GRP grates. Each grating type can be identified by a fixed item number structure. Do you already know one or more specifications? Then use the coding to determine the correct grating type. If you do not yet know the specifications or are unable to make a choice, we would be happy to refer you to our other FAQs about this specification or advise you personally!

  An example: R4-MG3

  Code	Meaning	Explanation
  R	Type of item	Indication of which product is involved: R = Grate T = Stair tread
  4	Height	Indicates the grating height: 2 = 25 mm 3 = 30 mm 4 = 38 mm 5 = 50 mm
  M	Top layer	Surface type: M = Meniscus (also called concave) Q = Quartz grit (anti-slip grit layer) S = Smooth (smooth surface)
  G	Colour	Colour coding: G = Grey E = Yellow B = Blue R = Green C = Custom colour
  3	Mesh size	Centre-to-centre distance of the support bars: 3 = 38×38 mm 1 = 19×19 mm 5 = 50×50 mm 2 = 25×25 mm C= Closed top plate on 38 x 38 mm mesh, grating height + 3 mm

  Are you unable to decide or would you like advice on an application?
  👉 Please feel free to contact us, we will be happy to help you choose the right GRP grating.

• What is the difference between standard panel sizes (commercial sizes), GRP gratings cut to size from stock (CTS) and custom-made (CUST) products?

  Standard sizes (stock)

  These are the panels we have in stock. The range of available panel sizes may vary depending on the type of grating. The availability of standard panels can be found under the relevant grating type on our website.

  In addition to our standard commercial sizes, we can supply gratings that are made to measure for your specific application. We offer various options for customised GRP gratings, depending on your requirements, schedule and project size. There are various possibilities, but two are most common:

  CTS (Cut to Size) – cut from stock panels
  These GRP gratings are cut to size from our existing stock. We charge cutting costs and there is some material loss. We can easily calculate this.

  • Advantages: Fast delivery time, depending on the availability of the material (common grid types are usually in stock) and the current sawing schedule. Ideal for standard projects, smaller quantities or urgent projects.

  CUST (Custom) – project-based production
  These gratings are produced entirely to measure, with no or minimal material loss and often without or at lower processing costs.

  • Advantage: Cost-efficient for larger projects or repetitive dimensions.
  • Disadvantage: Longer delivery time. In recent years, FlexxCon has built up such a strong position that there is always material in production, which means we can often switch quickly to ensure the shortest possible lead time. This is always custom work, and we are happy to help you personally.

  In summary:

  • CTS = fast delivery, ideal for standard and smaller or urgent orders.
  • CUST = more efficient for larger quantities or fixed dimensions, but longer delivery time.