Hello thank you for your question, appologies for the delay in replying. The dimension of the room without the bay window as follows:

Width (from wall to chimney): 2600mm

Length (from wall to bay window): 3200mm

Bay window width 1600, depth at deepest point 500mm

Depth of alcoves either side of chimney 400mm

Hopefully this is clear, please message me if you would like more information.

Peach x