Flat lintels are made of reinforced cellular concrete and used to execute load-bearing lintels in a building. Height of flat lintel beams is 125 mm. Maximal width of covered hole is 250cm. Depending of wall thickness, the elements are installed as single or multiple ones. In order to achieve a load-bearing lintel the elements should be extended by a layer of blocks.
| Dimension [mm] | Maximum opening | ||
| Length | Height | Thickness | [mm] |
| 1300 |
125 |
115 |
900 |
| 1500 | 1100 | ||
| 2000 | 1500 | ||
| 2500 | 2000 | ||
| 3000 | 2500 | ||
Combination of 115mm and 175mm lintels in different wall thicknesses.
| Wall | Lintel | |
| Thickness | 115 mm | 175 mm |
| 115 mm | 1x | - |
| 175 mm | - | 1x |
| 240 mm | 2x | - |
| 300 mm | 1x | 1x |
| 365 mm | - | 2x |
| 420 mm | 2x | 1x |
VELUX glazing technical data
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