If you get an IKEA chopping board:
and turn it upside-down and back-to-front, it makes a very nice wall shelf for hi-fi equipment.
The lip makes it look very smart from the front (the little food-safe branding on the side edge adds a touch of whimsy).
You need to cut it down, because it's deeper front-to-back (53cm) than it needs to be even for a record player (about 41cm).
The width is ideal. Of course, the care instructions say to oil it regularly, but that's mainly to help achieve a smooth, natural sound.
IKEA is like Lego for grown-ups, if you're not careful.
Daniele