OK, I love the look of this sofa but I hate soft seating so want to put bed slats underneath for support. I can buy them cut to size so would anyone with a Soderhamn be able to tell me what the measurement underneath is, the depth from front to back within the timber structure where the slats would be attached. I'd like to have them all ready to go when the sofa is delivered as I have space issues.
It's an ask, I know but I'm hours away from an Ikea to measure myself. Thanks!