3.2m wide, 3.6m ig L1S/75 lintel and 8 courses of brickwork above with same in blockwork inside just supporting 1m deep lean-to roof, so hopefully little in the way of deflection. Will sit on a level course of brickwork.
I want to fit the lintel and was wondering what top/bottom clearances I should leave?
I don't know much about bi-folds in general or this one in particular. Googling "clearance" just brings up lots of sales and special offers!!
Thanks.
I want to fit the lintel and was wondering what top/bottom clearances I should leave?
I don't know much about bi-folds in general or this one in particular. Googling "clearance" just brings up lots of sales and special offers!!
Thanks.
