Tray Specifications
This chart shows the tray dimensions and cell measurements for all trays commonly used for growing Headstart Nursery vegetable transplants.

Cell
Count
Material Tray Dimensions Cell Dimensions
(US)
Cell Dimensions
(Metric)
Cell Soil
Volume
308 Styrofoam 26.5" x 16.5" x 2.5" 1" x 1" x 2.5" 2.54 x 2.54 x 6.35 cm 21 cc
476 Styrofoam 26.5" x 16.5" x 2.5" .75" x .75" x 2.5" 1.91 x 1.91 x 6.35 cm 13 cc
200 Hard Plastic 26.1" x 13.1" x 2.25" 1.25" x 1.25" x 2.25" 3.18 x 3.18 x 5.72 cm 35 cc
338 Hard Plastic 26.5" x 13.5" x 2.4" 1" x 1" x 2.4" 2.54 x 2.54 x 6.1 cm 22 cc
450 Hard Plastic 26.5" x 13.5" x 2.4" .75" x .75" x 2.4" 1.91 x 1.91 x 6.1 cm 16 cc
98 Polystyrene 21.5" x 11" x 2" 1.32" x 1.32" x 2" 3.36 x 3.36 x 5.08 cm 35 cc
128 Polystyrene 21.5" x 11" x 2" 1.19" x 1.19" x 2" 3.03 x 3.03 x 5.08 cm 30 cc
128
Ellepot
Polystyrene
with paper wrap
20.66" x 10.3" x 1.75" 1.187" diameter x 1.75" 3.015 cm diameter
x 4.45 cm
21 cc
162 Polystyrene 21.5" x 11" x 1.75" 1" x 1" x 1.75" 2.54 x 2.54 x 4.45 cm 20 cc
200 Polystyrene 21.5" x 11" x 1.5" .82" x .82" x 1.5" 2.09 x 2.09 x 3.81 cm 10 cc
392 Polystyrene 21.5" x 11" x 1.13" .63" x .63" x 1.13" 1.6 x 1.6 x 2.87 cm 5 cc