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Windows and doors lentils size

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Building a brick veneer in NSW.
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
600100 x 100*6mm GALVANISED LINTELARCHBAR 900MM
600100 x 100*6mm GALVANISED LINTELARCHBAR 900MM
1794100 x 100*6mm GALVANISED LINTELARCHBAR 2100MM
2391150 x 100*6mm GALVANISED LINTELARCHBAR 2700MM
3600150 x 100*6mmGALVANISED LINTELARCHBAR 4000MM
2391150 x 100*6mm GALVANISED LINTELARCHBAR 2700MM
2629150 x 100*6mm GALVANISED LINTELARCHBAR 3000MM
2629150 x 100*6mm GALVANISED LINTELARCHBAR 3000MM
900100 x 100*6mm GALVANISED LINTELARCHBAR 1200MM
1438100 x 100*6mm GALVANISED LINTELARCHBAR 1800MM
What did your last slave die of?

Your Engineer is the one can specify your lintel size.

I always find the size of lentils depends on the type.
Red lentils always seem to be larger than puy lentils while brown lentils can be quite variable.
Seriously though, for lintels, I always allow 100mm bearing for anything under 1.0m and 150mm for anything over 1.0m.
Is everyone using archbar for window opening?
Instead of flat bar.
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