When you purchase a Biohort shed, you need to decide whether to erect it on a custom-built concrete foundation or on an existing surface. If you choose an existing surface (gravel, paving, decking etc) you will require the aluminium floor frame. If you go for this option, you will also need the floor plates, so that the interior floor surface is above the underlying ground surface. Floor plates are 2mm thick aluminium checker plates, consisting of 2-4 panels (plus connecting rails depending on the size of the shed.) They should be fitted over expanded polystyrene board (insulation board) as per the illustration below.
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