Fixed ladders provide access to tanks, shafts, roofs, masts and plant – often in places where moisture, chemicals or salt air quickly attack steel. Ladders made of glass-reinforced plastic (GRP) do not rust, do not conduct electricity and, with anti-slip rungs, remain safe to climb even when wet.
Retrofitting an existing ladder? For existing steel or aluminium ladders we offer anti-slip ladder rung covers. Matching protective equipment: ladder safety shoes (LG).
Benefits of GRP fixed ladders
Corrosion-resistant
no rust in wastewater treatment works, chemical plants, offshore and food production facilities
Electrically non-conductive
suitable for areas with electrical installations
Lightweight
easy to transport and install, even without heavy lifting equipment
Slip-resistant
rungs with a high-grip surface, can be retrofitted with R13 rung covers
Low-maintenance
no painting or galvanising required
Standards and requirements
Fixed ladders on machinery and plant are designed to EN ISO 14122-4; among other things, the standard specifies rung spacing, widths, safety cages and rest platforms. Whether a safety cage or a fall-arrest system is required, and from what height, depends on the standard, the risk assessment and the place of use. In Germany, the German statutory accident insurance guidance DGUV Information 208-032 additionally provides advice on selecting and using fixed ladders; in other countries, the relevant national regulations apply.
Typical applications
Vessels, silos and tanks
Shafts and basins in wastewater treatment works and waterworks
Roof access and plant platforms
Wind energy, offshore and port facilities
Chemical and process plants
How your enquiry works
Tell us the climbing height, location, mounting surface and whether a safety cage or exit aids are required. We will put together the right configuration and send you a quotation – enquire now.
Suitable products
GRP fixed ladders and anti-slip rung covers for retrofitting existing ladders.

GRP fixed ladder to EN ISO 14122-4
Item no. DD-ERPGR-STEIGLEITER
Fixed GRP ladder for tanks, shafts, roofs and plant in corrosive environments. Electrically non-conductive and low-maintenance.
- To EN ISO 14122-4
- Ladder sections up to 6 m, longer ladders in two parts
- Optional safety cage and mounting plates

GRP ladder rung cover R13
Item no. DD-ERPGR-SPROSSENABDECKUNG
Slip-resistant GRP cover for ladder rungs, in C or U shape, fitted over existing rungs and fixed in place.
- Rung widths 20, 25 or 30 mm, 3.5 mm thick
- Slip resistance R13 V10
- Yellow (RAL 1003)

GRP ladder rung cover
Item no. DD-GRPF-5000600-R-M-25
GRP rung cover with aluminium oxide grit for round or square ladder rungs. Length and diameter can be adapted.
- Round or square, diameter 20 to 35 mm
- Choice of grit and colour

Square GRP ladder rung cover
Item no. DD-RS-SPROSSE-ECKIG
Retrofit GRP rung cover for square rungs – existing ladders become slip-resistant without replacing them.
- Lengths 300, 400 or 500 mm
- For rungs from 20 x 20 to 38 x 38 mm
- Supports the requirements of DIN 18799-1
- Minimum order quantity: 10 pieces

Round GRP ladder rung cover
Item no. DD-RS-SPROSSE-RUND
Half-round GRP rung cover for retrofitting round rungs in production facilities, chemical plants and tank farms.
- Lengths 300, 400 or 500 mm
- For rungs Ø 20 to 35 mm
- Corrosion-resistant
- Minimum order quantity: 10 pieces
Frequently asked questions about GRP fixed ladders
How long can a GRP fixed ladder be?
Individual ladder sections are available up to 6 m in length; longer ladders are supplied in two parts. The height from which rest platforms or a safety cage are required depends on EN ISO 14122-4 and your risk assessment.
Why GRP instead of steel or aluminium?
GRP does not rust, is resistant to many chemicals and to salt water, does not conduct electricity and is considerably lighter than steel. This reduces maintenance effort and installation costs, especially in damp or aggressive environments.
Can I make an existing ladder slip-resistant?
Yes. For existing fixed ladders there are anti-slip GRP rung covers (R13), which are fitted over the existing rungs and secured. The minimum dimensions of the ladder must still be maintained.
Which shoes are suitable for fixed ladders?
Safety shoes with a ladder grip zone (marked LG) provide additional grip on rungs. You will find a selection under ladder safety shoes.
