Hobby craft you will pay a small fortune for the sheets! Did you look at the link i tagged you on? And i got my shelves from b&m they are bathroom shelves to start off with honestly one will be plenty i got 2 and iv been making quite a few batches and have yet to fill both would have to be making like 4-5 loaves a week to fill them all in before some have cured and freed up some space. Im sure ikea will have something too and its upto you just here to give some hopfully helpful advice
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Have you bought any fo or eo? I just put in an order for lye, some fo and a top up of coconut oil, shea butter and palm oil mostly because for the moment i have the money but that will change by next month so before it gets spent on something else decided to top up on some stuff.
@Hendejm fair enough you have quite a lot more than me right now lol but i get the whole falling over thing i bought a set of wooden shelves now upstairs with oils ect on at first intended to use for curing but they were too easy to move and shake half the soaps off so got these bathroom shelves and zip tied them together so they effectively have 8 legs not 4 and are far more stable. Suppose i will have to look for something like you are after if i manage to get to selling stage. Have you looked at ebay lots on ebay here but they dont seem to come with the trays so then that presents another cost