Hi
I have a 762mm Internal Doorway downstairs.
I want to install Double Doors to a Kitchen/Diner (1981x1372x44), and just looking for advice.
Upstairs Wall
The Wall I think is Concrete Block, though I am not sure if its hollowed out. It is 133mm with the render so I think its fairly standard 100mm thick + render
Above the downstairs wall is a same construction upstairs wall.
This big internal wall runs parallel to the roof tie beams - so I don't believe it takes any roof load.
Floor
The wall has noggins above which support the parallel running joists.
There is a I-Beam at 90deg attached to the wall further down the same room (the beam supports the parallel joists and a wall above supporting a cut truss roof).
Do I need a structural calculation for this or can I put in a hollow box or concrete lintel?
I've been looking at the interactive zone and load triangle and reading posts on here; its probably just caused a little confusion..
If I were to buy say a 1800mm steel reinforced concrete lintel, would that really support the load of the upstairs wall?
Are the calculations a necessity?
If not, for peace of mind I have seen high strength lintels supporting 3x the load of a 1800mm Wicks pre-stressed concrete lintel.
Any advice would be greatly appreciated?
I have a 762mm Internal Doorway downstairs.
I want to install Double Doors to a Kitchen/Diner (1981x1372x44), and just looking for advice.
Upstairs Wall
The Wall I think is Concrete Block, though I am not sure if its hollowed out. It is 133mm with the render so I think its fairly standard 100mm thick + render
Above the downstairs wall is a same construction upstairs wall.
This big internal wall runs parallel to the roof tie beams - so I don't believe it takes any roof load.
Floor
The wall has noggins above which support the parallel running joists.
There is a I-Beam at 90deg attached to the wall further down the same room (the beam supports the parallel joists and a wall above supporting a cut truss roof).
Do I need a structural calculation for this or can I put in a hollow box or concrete lintel?
I've been looking at the interactive zone and load triangle and reading posts on here; its probably just caused a little confusion..
If I were to buy say a 1800mm steel reinforced concrete lintel, would that really support the load of the upstairs wall?
Are the calculations a necessity?
If not, for peace of mind I have seen high strength lintels supporting 3x the load of a 1800mm Wicks pre-stressed concrete lintel.
Any advice would be greatly appreciated?