Would you also use an extra long enclosure?
New series of aluminium enclosures 1590BX can be a solution, if you have a relatively longer PCB.
HAMMOND 1455 aluminium enclosures – a wide range of sizes and shapes
Perhaps the biggest family of aluminium enclosures from Hammond can be the right choice for you.
Stylish enclosure for Raspberry Pi? - Hammond 1593HAMPI3
Hammond 1593HAMPI3 enclosure provides a comfortable cot for your Raspberry Pi and of course provides an access to all available interfaces.
Are you also producing a USB device? Hammond enclosures will give it a face
Then you´ll probably welcome a new family of quality enclosures for USB devices from Hammond.