I did mine with "backing board" from B&Q, mine isn't fixed in and is just a second lid, it does make the clips of the lid harder to getr over, but that eases somewhat with usage
yeah, i put the white side facing down, that way you have a coating to stop any moisture affecting the board, mines still like new after 8months(or whatever time its been), and its only about £1 a box, if it does need replacing in future years
I did mine with "backing board" from B&Q, mine isn't fixed in and is just a second lid, it does make the clips of the lid harder to getr over, but that eases somewhat with usage
Very useful post, never though of doing that. Brill.