Why not make a wooden frame long lasting and not expensive just don't use the cheap screws better to make them yourself see link https://plus.google.com/photos/… of-course you can make them in every combination don't use thick wood vertical wood 2x3 cm can handle over 100 kilo Roland 2012/2/2 Ceridwen Lloyd <ceridwen@internode.on.net>: > Those modular plastic seedling racks look just beaut. -- R de Boer La Maugardiere 1 F 27260 EPAIGNES FRANCE Phone./Fax 0033-232-576-204 Email: bulborum@gmail.com