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Ceiling Calculator – Tiles, Runners & Tees

Quick answer

Suspended ceiling counts: 2.78 tiles per m² (60 × 60), mains every 1.2 m, cross tees every 0.6 m, plus 10% tile waste.

  • Free, no sign-up, works on any device.

Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.

How does the ceiling tiles calculator work?

Tiles = Area × 2.78 (60 × 60) or 2.5 (60 × 120); Mains = Length ÷ 1.2

Instead of working from a supplier's ballpark figure, this calculator derives your ceiling tiles requirement from Tiles = Area × 2.78 (60 × 60) or 2.5 (60 × 120); Mains = Length ÷ 1.2 using the exact room length and width you provide. The arithmetic stays transparent: each result links back to the displayed formula, so you can audit any number. For instance: A 25 m² office ceiling: 70 tiles, 21 m of mains, 42 m of tees and 24 m of wall angle. Keep in mind: Order tiles by the box - they come 8-10 per carton, not loose. Quantities are rounded conservatively so offcuts, spillage and delivery shortages never stop work mid-job.

  1. 1

    Take dimensions

    Note the room length and width for the area you are covering or filling.

  2. 2

    Run the calculation

    The calculator applies Tiles = Area × 2.78 (60 × 60) or 2.5 (60 × 120); Mains = Length ÷ 1.2 the moment you type.

  3. 3

    Check the breakdown

    Compare base quantity and waste-adjusted totals side by side.

  4. 4

    Plan the purchase

    Use the final figure to price and schedule the delivery.

Use Cases

Feature and accent walls

Compare ceiling tiles needs before committing to bold colors.

Rental turnover

Budget ceiling tiles quickly between tenant changes.

Wallpaper projects

Convert ceiling tiles area into rolls with pattern-repeat waste.

Common Mistakes

  • Buying exact liters

  • Skipping primer

  • Mismatched batch numbers

FAQs

How many 60 × 60 ceiling tiles per m²?

2.78 tiles per m² - a 20 m² room needs 56 tiles, order 62 with 10% waste.

Runner spacing in a grid ceiling?

Main runners at 1.2 m centers, cross tees at 0.6 m - the standard 60 × 60 module.

Minimum finished height of a suspended ceiling?

Keep 7.5 ft (2.3 m) finished residential; the grid itself eats 8-15 cm below the slab.

Tiles around light fixtures?

Deduct one tile per recessed fixture - a 600 × 600 LED panel replaces exactly one 60 × 60 tile.
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