I'd like to place a couple of wood panels in the gap at the top of the living room radiator to allow my cat to walk along it (as it's next to her cat tree and other flat-top furniture). I know the dimensions (7 x 4 x 63 cm, two pieces), and I need it to be white to match the radiator itself (we never turn the heating on as it's a remarkably well-insulated flat, so the heat wouldn't warp the wood or anything). That said, I have zero DIY experience and limited time, so any part of this I can outsource to a store or such would be great.
What should I do?
What should I do?