Originally Posted by bz1mcr
And how about 23.5"X4'? That is favored by some Phlatprinter users.
FWIW, as a PhlatPrinter owner, the 2'x4' works just fine.
When designing in SU for FFF, I use 6mm as the standard for the tabs, slots, and about 85% of the time that works just fine. It does vary a bit even on the same sheet (long piece with multiple tabs/slots, most are perfect fit, some aren't)
Also 5MM would be fine with me, but I would prefer 6mm and then 3mm as a close second.