A nursery structure can combine shade, insect protection, benches or beds, irrigation and misting depending on what is being propagated.
Net percentage, colour and mesh characteristics should be selected from verified product information and the light or pest-management objective, not from a generic assumption.
Drainage and hygiene matter because young plants are often grown at high density. Water distribution should be uniform without keeping the floor or root zone unnecessarily wet.
Plan the nursery as a workflow from sowing or propagation through hardening and dispatch so that irrigation and structure support each stage.