VSI offers several standard or custom Rhizobox Rack designs: Standard Racks (with space in-between boxes, 40°, 5 boxes; PP) allow individual boxes to be removed, optional shading panels are available to protect the roots of individual boxes from light. Compact Racks (with NO space in-between boxes, 40°, 5 boxes, PP) maximize the number of root boxes that can be placed, e.g. in space-constrained growth chambers, growth rooms; only the first Rhizobox per rack requires an additional Shading Panel, as the boxes are placed front to back. The different Rhizobox rack types & customized designs (number of boxes, inclination angle, Shading Panels, etc.) are available via the rhizobox configuration form (pdf).