Prepared the faces for the slide outs. Removed the rebate all around the slide-out faces.
The remaining fibre glass skin will be supported by an alu angle 80/38/1.5 and the outer edge will be trimmed with a seal. I opened the slide-outs and checked the fit of the mechanism. All good, fits well. The two large ones are 64cm deep and the bedroom one is 60cm deep.