How many pedestals do I need for a raised floor?

Pedestals sit at the corners of each panel. For a 600mm grid, the count is (panels along length + 1) × (panels along width + 1). A 6m × 4m room needs 11 × 8 = 88 pedestals.

What size are raised access floor panels?

The standard UK size is 600 × 600mm. Panels are typically 30–38mm thick and made from calcium sulphate or steel with various finishes. Some systems use 610mm (2ft imperial) panels.

What height should a raised access floor be?

Typical heights are 50–300mm depending on the services running underneath. Office environments commonly use 100–150mm. Data centres may use 300–600mm for cable management and air distribution.

What are stringers for?

Stringers are horizontal bars that connect pedestals together, providing lateral stability and edge support for panels. They clip onto the pedestal heads and create the grid framework.

Do raised access floors need edge trim?

Yes. Edge trim (also called perimeter trim) is needed where the raised floor meets walls or other fixed elements. It conceals the gap and provides a neat finish.

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Raised Access Floor Calculator — Panels, Pedestals & Trim

Calculate raised access floor components: pedestal count from 600mm grid, panel count, edge trim and stringer layout.

Room Length

Room Width

Panel Size

Price Per Panel (optional)

How We Calculate This

This calculator determines panel, pedestal and stringer counts from your room dimensions based on the standard 600mm grid layout.

The formula

Panels = Panels along length × Panels along width

Pedestals = (Panels-X + 1) × (Panels-Y + 1)

Stringers = horizontal + vertical grid lines

Frequently Asked Questions

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Last updated: March 2026

All calculations are estimates. Verify with your supplier.