Ikea Beddinge slatted frames - Does it fit?

Hello, I have an older Ikea sofa bed "Kungalv" that occasionally needs new parts - in this case, the slatted frames. Who knows if the frames from other, current sofa beds fit, e.g., from the Beddinge? At least the joints fit. Here are the dimensions of the original slatted frames: 620*1900 Thank you for the information!

Hello, from BEDDINGE I can already tell you that the two slats are different widths. Approx. 80 cm and 60 cm.