Hi. I have an old 400mm stone wall (chalk/flint/granite mix) in my kitchen - originally an external gable wall, now inside a 2-storey extension. Wall is 3m+ wide and has a tall hearth roughly in the middle topped with a 6x6in Hardwood lintel.
I want to make a hole in the wall to the left of the hearth, at worktop height, 50x35 cm and about 30cm deep.
What should I use for support? I was thinking to use 50x75mm or similar concrete cut to length to support the full depth, with another timber section at the front. How much bearing overhang do I need? and what's the closest I should go to the hearth? (The existing timber lintel has a 25/28 cm bearing either side of a 1m opening)
Thanks, Rudy.
I want to make a hole in the wall to the left of the hearth, at worktop height, 50x35 cm and about 30cm deep.
What should I use for support? I was thinking to use 50x75mm or similar concrete cut to length to support the full depth, with another timber section at the front. How much bearing overhang do I need? and what's the closest I should go to the hearth? (The existing timber lintel has a 25/28 cm bearing either side of a 1m opening)
Thanks, Rudy.