Have a look at Richlite cascade boards, they look quite a lot like your example.
To cut long mitres like that I use a track saw, the Festool TS55 and join it using the domino. It's not always perfect though and with pre-finished board would be a sweat inducing job, at least with painted mdf you can fill any small gaps.
Have a look at Richlite cascade boards, they look quite a lot like your example.
To cut long mitres like that I use a track saw, the Festool TS55 and join it using the domino. It's not always perfect though and with pre-finished board would be a sweat inducing job, at least with painted mdf you can fill any small gaps.