I'm in the process of sorting out the plans for an extension. Semi detached 2 storey house. House is 6m wide, but i'm going out at the side and out at the back. Original construction is brick, cavity, block. Extension at the rear is blockwork only.
I've had calcs for a span across the back of the house to open it up and i'm advised 2 356x127x33 bolted together with a 665mm padstone on both sides.
The depth of the beam means I wont be able to achieve a flush finish (the extension is vaulted sloping upwards towards the house) and 790mm piers to sit the padstone can reduce if I replace the inner leaf with brickwork.
Im no SE myself, but one of the builders quoting has questioned the size of the beam as being excessive but I'd be more inclined to go with the SE over the builder! Whats the thoughts on whats been provided?
I've had calcs for a span across the back of the house to open it up and i'm advised 2 356x127x33 bolted together with a 665mm padstone on both sides.
The depth of the beam means I wont be able to achieve a flush finish (the extension is vaulted sloping upwards towards the house) and 790mm piers to sit the padstone can reduce if I replace the inner leaf with brickwork.
Im no SE myself, but one of the builders quoting has questioned the size of the beam as being excessive but I'd be more inclined to go with the SE over the builder! Whats the thoughts on whats been provided?