Technical information

PROJECT INFORMATION

Technical information

Essential information on grating design, surface finishes, anti-slip options and safe installation, together with the available technical tables and documents.

Grating design and ordering information

The basic information we need to design the correct grating.

Surface finish

When to choose hot-dip galvanising, electro-galvanising or powder coating.

Anti-slip design

Overview of types P, P/S1 and P/S2 and their suitable applications.

Fastening and installation

Principles for supporting and securing gratings and preparing for installation.

TECHNICAL GUIDE • 01/04

Design of gratings and how to order

DESIGN PRINCIPLE

Press-locked grating

A press-locked grating consists of bearing bars and non-bearing cross bars. Their orientation, mesh size and dimensions are selected to suit the support arrangement and required load capacity.

Výrobní typy ok a nosných pásů

PDF dle DIN 24537

Nosnost roštů, oko 30 x 30 mm

PDF tabulka zatížení

Konstrukce lisovaného roštu

PDF technický přehled

HOW TO SPECIFY GRATINGS

Information required for ordering

To prepare a quotation, we need the grating type, dimensions, intended use, environment and load characteristics. KASALI then specifies the structural design.

Grating type

Floor / rack grating
Specify the required product group and intended use.

PROVIDED BY THE CUSTOMER

Grating dimensions

D x S
State dimensions as bearing-bar length × cross-bar width, for example 1,300 × 650 mm. The clear span between supports is also important.

PROVIDED BY THE CUSTOMER

Surface finish

Zinc coating to suit the environment
Hot-dip galvanising for outdoor and damp environments; electro-galvanising mainly for dry interiors.

SELECTED BY THE CUSTOMER WITH KASALI GUIDANCE

Bearing bar

H x T
We specify the bearing-bar depth and thickness to suit the span, support arrangement and load, for example 40 × 3 mm.

SPECIFIED BY KASALI

Mesh size

A x B
Mesh size and orientation are selected to suit the application, safety requirements and load characteristics, for example 34 × 66 mm.

SPECIFIED BY KASALI

Cross bar

Non-bearing structural element
We determine the cross-bar dimensions according to the grating type and design, for example 8 × 2 mm.

SPECIFIED BY KASALI

Load capacity and loading

Type of load application
State both the load value and how it is applied: uniformly distributed, point or line load, pallet load or wheel load. A value in kg/m² alone may not be sufficient.

PROVIDED BY THE CUSTOMER • VERIFIED BY KASALI

Quantity

Quantity for each item
State the required quantity for each size and design.

PROVIDED BY THE CUSTOMER

Do you have a specific brief?

You do not need to know every design parameter

Send us the intended use, dimensions, support arrangement and loads. Our engineering team will specify the bearing bars, mesh and cross bars.

TECHNICAL GUIDE • 02/04

Surface finish

The surface finish is selected according to the environment, required durability and appearance. We offer three basic options for common industrial applications.

OUTDOOR ENVIRONMENT

Hot-dip galvanised

The standard choice for outdoor structures, handling areas and operations exposed to moisture.

DRY INTERIOR

Electro-galvanised

Particularly suitable for warehouse interiors without exposure to outdoor moisture.

DISTINCTIVE APPEARANCE

Powder coating

A coloured grating finish with a durable, uniform surface.

WHAT AFFECTS THE CHOICE?

Location and moisture

First distinguish between dry interiors, unheated buildings and outdoor use. Local exposure to water, condensation or chemicals must also be considered.

Handling and mechanical stress

For rack infill and trafficable surfaces, the frequency of handling, contact with pallets and potential surface damage should be considered.

Appearance and integration with the structure

For visible components, the finish can be coordinated with the adjoining steelwork. We recommend approving the colour and final appearance before production.

Zinc information

Information on galvanising methods

Need advice for your operating environment?

Describe the grating location and operating conditions and we will recommend a suitable finish.

TECHNICAL GUIDE • 03/04

Anti-slip design

Anti-slip gratings are used where moisture, dust or process residues may reduce grip. The appropriate type must be selected according to the risk and use of the surface.

type P, R10

Plain design

Plain bearing and cross bars for standard areas without an increased slip risk.

type P/S2, R11

Serrated cross bars

Improved slip resistance with standard bearing bars.

type P/S1, R12

Serrated in both directions

Serrated bearing and cross bars for areas with increased anti-slip requirements.

DESIGN GUIDANCE

Assessment of the specific application

The slip-resistance class is only one criterion. Gradient, traffic frequency, footwear and substances that may occur on the surface must also be considered.

Grating stair treads

For stair treads, the anti-slip design is supplemented by a nosing. The final solution depends on the stair location and project requirements.

Maintenance of walking surfaces

Regular cleaning and the removal of dirt also affect safety. Grating and mesh size are therefore selected with the actual maintenance regime in mind.

Which design should you choose?

Send us the application, location and expected contamination. We will verify the design with you.

TECHNICAL GUIDE • 04/04

Fastening and installation

Basic installation rules

Adequate bearing length

Where possible, the bearing length in the direction of the bearing bars should be at least equal to their depth and no less than 25 mm.

Securing against movement

The grating must be secured against shifting and lifting using suitable fasteners or the solution specified in the project.

At least four fixing points

Standard installation requires at least four fasteners per grating; the specific design may require more.

BEFORE INSTALLATION

Check the supporting structure

Check the clear span, level, support width and alignment of adjoining bays. The grating must not be installed with the bearing bars in the wrong direction.

Select the fixing type

The decision depends on mesh size, support profile, access from below and whether drilling into the structure is permitted.

Installation and laying plan

For larger areas, we recommend a numbered layout plan showing the position of each grating, cut-out and fixing element.

Grating fastener options

Link to the grating fasteners page

Standard and custom components for securely fixing gratings to the supporting structure.

TECHNICAL CONSULTATION

Need an installation proposal?

Send us a drawing of the supporting structure. We will prepare a suitable fastening solution or layout plan.

DOWNLOADS

Tables, standards and certification

Detailed information is readily available to designers, engineers and customers.

PROJECT INFORMATION