How much material for a suspended ceiling
How many profiles, hangers, tiles and luminaires a given room needs. The figures follow installation scheme 1 from the KRAFT guide for a 600×600 mm tile and typical illuminance levels. They are a guide — the exact specification for your project is calculated in Onliner 2.0.
Ready calculations
| Space | Area | Standard, lx | Runner 3600 mm | Cross tee 1200 mm | Long tee 600 mm | Hangers | Tiles 600×600 | KRAFT LED |
|---|---|---|---|---|---|---|---|---|
| Office | 100 m² | 500 | 24 | 140 | 140 | 70 | 278 | 31 |
| Office | 200 m² | 500 | 47 | 280 | 280 | 140 | 556 | 61 |
| Shop or retail space | 150 m² | 300 | 35 | 210 | 210 | 105 | 417 | 28 |
| Café, dining room | 80 m² | 200 | 19 | 112 | 112 | 56 | 223 | 10 |
| School classroom | 60 m² | 500 | 14 | 84 | 84 | 42 | 167 | 19 |
| Clinic, consulting rooms | 120 m² | 500 | 28 | 168 | 168 | 84 | 334 | 37 |
Calculated to installation scheme 1 for a 600×600 mm tile. The wall angle L profile is taken from the actual room perimeter. The number of luminaires follows typical illuminance levels at a ceiling height of 3.5 m.
How it is calculated
Grid components
Consumption per m² is fixed for each of the eight installation schemes. Scheme 1 takes 0.232 main runners of 3600 mm, 1.4 cross tees in each direction, 0.7 hangers and 2.78 tiles per square metre.
Lighting
The number of KRAFT LED kits depends on the required illuminance for the space type, the floor area and the ceiling height.
What affects accuracy
A complex room shape increases the cutting allowance. Ceiling height, surface colours and window openings all change the number of fittings needed. That is why the final specification is always calculated for the specific project.
Frequently asked questions
For the most common scheme with a 600×600 mm tile: 0.232 main runners of 3600 mm, 1.4 cross tees of 1200 mm, 1.4 cross tees of 600 mm, 0.7 hangers and 2.78 tiles per square metre.
Cost depends on the system, the layout and the specification — the difference between solutions can be several times over. We price your floor area free of charge, and you can build the specification yourself in Onliner 2.0.
Its quantity depends on the perimeter, not the floor area. As a rough guide that is 0.216 of a 3000 mm length per square metre, but the exact figure comes from the actual perimeter.
At 500 lx for offices under EN 12464‑1 and a 3.5 m ceiling height, about 31 KRAFT LED kits are needed. The exact number depends on height and surface reflectance — use the calculator.
No. The table is built on scheme 1. Schemes 2, 3 and 5 need twice the main runners and hangers. Full figures for all eight schemes are on the T-profile installation page.
A calculation for your project
Send us the area and the type of space and we will select the system and calculate the exact specification.