Record: Bed area, compost weight per tray, depths, casing thickness, dead air spots.
Measure and write the bed area you actually filled, tier by tier.
Weigh the compost per tray and note the depth at both ends.
Measure casing thickness in six places and set the farm standard.
Walk the loaded room and mark every place with no air movement.
Draw the layout in the room file before the crop starts.

