Hydrofarm Cut Kit Tray, 10 x 20 in I.D., No Holes, Reusable

Hydrofarm Cut Kit Tray — Watertight 10 x 20 in I.D. Seed Flat, Reusable

The Hydrofarm Cut Kit Tray is the standard propagation tray in the Hydrofarm Cut Kit system — a watertight, no-holes seed flat that serves as the base for the complete propagation setup. Also known simply as a flat, it holds water and drainage without leaking, making it usable as a reservoir for bottom watering, a catch tray for overhead watering, or a standalone planting tray with loose media or plug inserts.

With a 10 x 20 in interior dimension, the Cut Kit Tray is compatible with all standard 10 x 20 in flat inserts — including the Hydrofarm 72-cell round (CK64002), 72-cell square (CK64002SQ), 50-cell square (CK64005), and heavy duty (CK64072) inserts. Paired with the Hydrofarm mesh tray (CKMESH2), cube draining becomes a simple, mess-free process.

Key Features & Benefits

• 10 x 20 in I.D. — interior dimension matches the standard 10 x 20 in footprint used across the Hydrofarm propagation insert line and the broader horticulture industry.
• No holes — watertight — solid no-hole base contains water and drainage; suitable as a bottom-watering reservoir or drainage catch tray.
• Outer dimensions 21 x 11 x 2.5 in — slightly larger outer dimensions accommodate the standard 10 x 20 in insert with a stable fit.
• Reusable — durable plastic construction for repeated use over many growing seasons.
• Pairs with mesh insert — use with the Hydrofarm CKMESH2 mesh insert for mess-free cube watering and draining.

Who Should Use This Tray

Propagators at any scale who need a versatile, watertight base tray in the standard 10 x 20 in format — for use with plug inserts, mesh trays, humidity domes, and heat mats as part of a complete propagation setup.

Bottom Watering with a No-Holes Tray

One of the advantages of a watertight, no-holes tray is the ability to bottom-water — filling the tray with nutrient solution or water and allowing plants to absorb moisture upward from below. Bottom watering encourages deeper root development, reduces surface moisture that can promote mold, and is more water-efficient than overhead watering in tray-based propagation systems. The Cut Kit Tray makes this possible in the standard 10 x 20 in format.

Frequently Asked Questions

Does this tray have drainage holes?

No. The Cut Kit Tray has a solid, no-holes base — it is watertight. This allows it to be used as a bottom-watering reservoir or drainage catch tray. If you need drainage holes, you would need a tray specifically designed with perforations.

What is the interior dimension?

The interior dimension (I.D.) is 10 x 20 in — the standard industry format. Outer dimensions are 21 x 11 x 2.5 in.

What inserts fit this tray?

Compatible with all standard 10 x 20 in flat inserts, including the Hydrofarm CK64002 (72-cell round), CK64002SQ (72-cell square), CK64005 (50-cell square), and CK64072 (heavy duty square).

How does the mesh tray work with this tray?

The Hydrofarm CKMESH2 mesh tray nests inside the CKTRAY. The CKTRAY acts as the watertight base, catching drainage from the mesh tray above. Plants are placed in the mesh tray, and water drains into the base tray below — creating a simple, mess-free drainage and bottom-watering system.

Is this tray reusable?

Yes. Rinse between uses and sanitize as needed. The durable plastic construction supports repeated use over many growing seasons.