I've been using lockdown to spend some time revamping my shed, to have a circuit around the shed, with a removeable section in front of the door. I took the opportunity to redecorate the interior as well, and to replace incandescent buld lighting with LED strip lights. Baseboards are 9mm ply on 20mmx70mm softwood frame.
Part of the loop passes though a storage unit...
...with lift out section removed. My intention is to make it hinged once I have decided on a track layout.
Inevitable collection of red boxes. Supports are stud wall timber 34mmx68mm which is currently selling at Wickes for £3 for 2.4m length.