Grow bag trays, plastic about £6 from Wilkinson. Been lurking for a while, but time to say hey and I'm enjoying the banter and advice.
About 3 foot, I've bought 4x2 trays from a hydroponics shop in the North West now, think they were £10each.
+1 for these trays,they can be bought in B&Q (I don't work for them ) for £8 each. I find these good cause the chips can be poured into your bucket easily from them .Grow bag trays, plastic about £6 from Wilkinson. Been lurking for a while, but time to say hey and I'm enjoying the banter and advice.