RooTrimmer 1020 Heavy-Duty No-Hole Growing Trays 21×11, 10-Pack — 1.6" Deep, Reusable BPA-Free Seedling Flats

RooTrimmer 1020 Growing Trays are heavy-duty, no-hole seedling flats sized 21221 that hold RooTrimmer 72 and 128 cell plug trays securely and prevent leaks while you move or water seedlings.

These TD538 nursery trays come in a 10-pack and are engineered as durable, reusable flats for starting seeds, growing microgreens, or containing small pots. Built from thick BPA-free plastic and designed with inner dimensions to accommodate common plug trays, they keep trays stable during transport, reduce mess, and offer a versatile base for soil, coco coir, or hydroponic staging. The shallow 1.6-inch depth gives enough room for root development in plug systems without excess bulk.

How do these trays fit my 72-cell and 128-cell plug trays?

The RooTrimmer TD538 tray is sized so the top opening measures 21" × 11" while the base sits at 19.1" × 9", creating a snug seat for many standard 72 and 128 cell plug trays. This close fit prevents sliding and tipping when trays are moved or watered.

• Top dimension: 21" × 11" for full plug tray coverage.
• Base dimension: 19.1" × 9" to stabilize plugs and prevent shifting.
• Depth: 1.6" designed to align with RooTrimmer 72/128 trays' profile.

Why choose no-hole trays instead of perforated options?

No-hole flats eliminate accidental leaks and let you transport seed trays without spilling water or soil. They also allow growers to bottom-water or hold small pots and inserts for a cleaner, more controlled watering routine.

• No drainage holes means easier transport and fewer drips or spills.
• Ideal for bottom-watering setups and microgreen staging.
• Works with pots, plug trays, and hydroponic inserts that require a contained reservoir.

How durable are these seedling flats for repeated use?

Manufactured from thick, BPA-free plastic, these trays are built to resist bending and cracking, even when filled with moist media and moved by hand. Their sturdiness supports repeated cycles of sowing, transplanting, and cleaning without losing shape.

• Extra-thick construction resists deformation under weight.
• BPA-free material tolerates routine cleaning and moderate temperatures.
• Designed to be lifted with one hand when filled, for easier handling.

Can I use these for microgreens, hydroponics, or pot containment?

Yes — the flat, no-hole design makes these trays a flexible base for many small-scale growing methods. They can act as reservoirs for microgreens, hold hydroponic inserts, or serve as shallow trays for small nursery pots and coco coir setups.

• Great for sowing microgreens and wheatgrass with a contained water reservoir.
• Compatible with small pots (round or square) and plug tray inserts.
• Works for soil, coco coir, and shallow hydroponic staging.

Who is this for: RooTrimmer 1020 Growing Trays are aimed at hobby gardeners, home nurseries, urban growers, and small-scale commercial producers who need a reliable, reusable tray system to organize plug trays, reduce mess, and simplify watering and transport. If you start seeds, manage multiple plug trays, or grow microgreens and want durable, leak-free flats that pair with RooTrimmer 72 and 128 cell trays, this 10-pack provides a practical, long-lasting solution.