what is the requirement for lentils size for the following windows and doors? Does the lentil have to be 150 extra each side?
Thanks
Window width | ||
600 | 100 x 100*6mm GALVANISED LINTEL | ARCHBAR 900MM |
600 | 100 x 100*6mm GALVANISED LINTEL | ARCHBAR 900MM |
1794 | 100 x 100*6mm GALVANISED LINTEL | ARCHBAR 2100MM |
2391 | 150 x 100*6mm GALVANISED LINTEL | ARCHBAR 2700MM |
3600 | 150 x 100*6mmGALVANISED LINTEL | ARCHBAR 4000MM |
2391 | 150 x 100*6mm GALVANISED LINTEL | ARCHBAR 2700MM |
2629 | 150 x 100*6mm GALVANISED LINTEL | ARCHBAR 3000MM |
2629 | 150 x 100*6mm GALVANISED LINTEL | ARCHBAR 3000MM |
900 | 100 x 100*6mm GALVANISED LINTEL | ARCHBAR 1200MM |
1438 | 100 x 100*6mm GALVANISED LINTEL | ARCHBAR 1800MM |