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Grow1 Double Thick Propagation Tray No Drain Holes - 10" x 20"

  • Heavy-duty 10x20 inch tray supports the weight of saturated media and heavy inserts without warping
  • Raised floor channels elevate pots to allow oxygen flow even in a watertight bottom-watering setup
  • Watertight no holes construction serves as a reliable reservoir for nutrient solutions or runoff
  • View More Details

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THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are moving to industrial trays because your current flats buckle when you carry heavy, saturated plant media.
  • You are switching to bottom watering because surface drenching often disturbs delicate seeds in the root zone.
  • You are using this as a master tray because standard flats flex and spill when holding several heavy pots.

What We Found

  • These stay flat as master trays even when loaded with heavy injection molded pots that usually cause bowing.
  • The floor channels are deep enough to keep root zones oxygenated even if you slightly overfill the reservoir.
  • The plastic is thick enough that it does not flex or twist when you carry a full, saturated tray with one hand.

What Users Say

  • Users who switched to bottom-watering say they stopped worrying about surface mold or damping off in their trays.
  • People moving flats frequently say they no longer deal with messy spills caused by cracked corners or sagging sides.

Grow1 Double Thick Propagation Tray No Drain Holes - 10" x 20"

For growers who demand industrial-grade durability, the Grow1 Double Thick Propagation Tray is the ultimate heavy-duty solution. While a standard propagation tray can become flimsy or brittle over time, this tray is engineered with a reinforced, double-thick plastic construction. It provides a rock-solid foundation for your clones and seedlings, resisting the warping, buckling, and cracking that often occurs when moving heavy, saturated media or full inserts.

This "No Holes" version serves as a completely watertight reservoir, making it the premier choice for bottom-watering applications. By holding water and nutrient solutions at the base, it allows your 50-cell seedling tray, rockwool, or seedling mix to wick up moisture evenly, reducing the risk of disturbing delicate surface-sown seeds. Its reinforced strength also makes it the perfect "master tray" to house multiple 3.5" square black injection molded pots or heavy insert flats without the tray sagging under the weight.

Like the rest of the Grow1 line, the base incorporates integrated raised channels to facilitate vital air circulation beneath your media. This ensures that even in a watertight environment, the root zone remains oxygenated. Proudly built to survive season after season of rigorous use, this double-thick tray is the last propagation flat you’ll ever need to buy.

Features

💪
Double-Thick Strength

Reinforced walls and base prevent warping and buckling, even when carrying maximum weight and water volume.

🚫
Watertight Integrity

Zero drainage holes allow this tray to act as a reliable reservoir for bottom-watering or a secondary catch-tray for runoff.

🏗️
Anti-Crack Technology

Crafted from a pliable yet ultra-dense plastic blend that resists the stress-cracking common in standard nursery flats.

🌬️
Enhanced Aeration

Deep raised channels in the floor of the tray elevate your pots, ensuring oxygen can reach the bottom of your root zones.

Specifications

Specification Value
Dimensions 10" x 20" x 2.25"
Material Density Double-Thick Pliable Plastic
Drainage None (Watertight Base)
Weight Support Industrial/Heavy-Duty Grade
Internal Features Reinforced Raised Air Channels
Case Quantity 50 Trays

FAQ

How much thicker is this compared to a standard tray? +

This tray is roughly twice as thick as standard nursery flats. This added density prevents the tray from "twisting" or bending when you lift it, making it much safer for transporting heavy pots or saturated seedling blocks.

Can I use this for microgreens? +

Absolutely. The "No Holes" design is perfect for microgreen growers who want to bottom-water to keep the foliage dry and prevent mold. Because it is double-thick, it can handle the weight of dense soil and water required for high-yield harvests, offering similar rigidity to the Grow1 Extreme Black Propagation Tray.

Is the plastic BPA-free and food-safe? +

Yes, Grow1 trays are made from high-quality horticultural plastic designed for food production, ensuring no harmful chemicals leach into your plants or water supply.

Will standard humidity domes fit on this double-thick tray? +

Yes. While the plastic is thicker, the exterior dimensions remain a standard 1020 footprint, ensuring a perfect seal with standard 2" and 7" propagation domes or a Super Sprouter 72-cell plug tray.

Why are there raised channels if there are no holes? +

The raised channels elevate your pots slightly off the flat bottom of the tray. This prevents your plants from sitting in a complete anaerobic "puddle" and allows some air to reach the bottom drainage holes of your pots or inserts.

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