Growing Trays 1020 Nursery Seed Starter Trays - Heavy Duty 10 Pack

In this review of the RooTrimmer TD538 Growing Trays, the bottom line is simple: these heavy duty 1020 nursery seed starter trays are best for gardeners who need sturdy, long-lasting tray bases to support 72 and 128 cell plug trays. The reviewer found the pack of ten to be well suited for moving full trays without bending or cracking, and appreciated that the 1.6in height closely matches the RooTrimmer plug trays so pots sit securely. If you need rigid, reusable tray platforms for seedlings, microgreens or small pots, these trays deliver.

Key Features

• Pack size: Ten trays provide enough durable bases to rotate multiple seeding cycles without immediate replacement.
• Compatibility: Top 21in by 11in and bottom 19.1in by 9in dimensions are designed to hold RooTrimmer 72 and 128 cell plug trays so they do not shift during handling.
• Depth match: The 1.6in tray height is made to accommodate plug trays of similar depth, preventing overflow and offering a stable planting depth.
• Material strength: Thick PS construction resists bending, holds soil and moisture, and stands up to hot conditions without cracking.
• Versatile use: Can be used for microgreens, wheatgrass, hydroponic setups and holding small round or square nursery pots.

Who It's For

These trays are ideal for hobby and small-scale commercial growers who already use or plan to use RooTrimmer 72 or 128 cell plug trays and want a reliable base that does not flex when filled. They suit gardeners who need a pack large enough to manage staggered sowings and to transport trays around a greenhouse or yard.

Shoppers who need nonstandard dimensions or expect universal fit with other brands' 1020 trays should check measurements first; some users reported mixed fit if their plug trays differ. This product is not for people who require drainage holes in the base, as these are the no-holes TD538 version.

Pros & Cons

Pros

• Very sturdy and thick PS construction keeps trays from bending when loaded.
• Pack of ten offers good value for multiple growing cycles or larger operations.
• Dimensions and 1.6in depth match RooTrimmer 72/128 cell trays for a secure fit.
• Versatile for microgreens, hydroponics, and holding small pots or coco coir.

Cons

• Size and fit are mixed for some customers who use other brands; confirm dimensions before buying.
• No drainage holes, which may be a limitation for growers who prefer base drainage without modification.

Specifications

Our Verdict

The RooTrimmer TD538 Growing Trays are a practical, cost-effective choice for gardeners who need a durable, stable base for 72 and 128 cell plug trays. Their thick PS construction and matching dimensions make them especially useful when transporting seeded trays or growing microgreens, and the ten-pack gives good rotation flexibility. Verify fit with non-RooTrimmer 1020 trays and note the no-holes design before purchasing.

Frequently Asked Questions

Do these trays have drainage holes?
No, the TD538 version is sold without holes and serves as a solid tray base.

Will my 72 cell plug trays fit?
They are designed to match RooTrimmer 72 and 128 cell plug trays with a tray height close to 1.6-1.8in, but check your plug tray dimensions if using another brand.

Are these trays heat resistant?
The thick PS material resists cracking at higher temperatures and held up well for customers in warm conditions.