Seed Starter Trays - 32 Cell

Insert Tray for 2.5" Seed Starting Pots – 32 Cell Upgrade your seed starting setup with our 32 Cell Insert Tray, built tough for season-after-season use. Made from extra-strength, BPA-free, food-safe plastic, these trays are far more durable than flimsy alternatives and backed by a 1-year warranty against breakage or warping. Designed to pair perfectly with our 2.5" seed starting pots or 2"x2" Rockwool cubes, this insert tray provides stability and structure while allowing healthy root development. Ideal for vegetables, herbs, flowers, and hydroponic or soil-based growing, these trays are a must-have for serious growers. Features Heavy-duty construction – thick, BPA-free, food-safe #5 PP plastic 32 cells per tray; each cell measures 2” square x 2” deep Outer dimensions: 21 1/4” x 11 1/4” x 2” Root-friendly design – drainage holes allow roots to grow through while retaining media like vermiculite Compatible with 2.5" seed starting pots and 2"x2" Rockwool cubes Works seamlessly with Bootstrap Farmer shallow 1020 trays without holes for bottom-watering Reusable for many years, saving you money and reducing waste Backed by a 1-Year Warranty against cracking and warping Why Choose This Insert Tray? Unlike throwaway propagation trays, these inserts are built for repeated use, whether you’re starting seeds indoors, running a greenhouse, or growing hydroponically. The tapered cell shape makes transplanting easier, while drainage holes prevent oversaturation and encourage healthy root growth. Compatible with any standard 1020 flat, these trays also fit 1020 super-durable propagation trays and humidity domes for a complete, long-lasting seed-starting system. ✅ Perfect for soil, hydroponics, or Rockwool-based systems, the 32 Cell Insert Tray keeps your seedlings secure while giving their roots the environment they need to thrive. Build your ultimate seed starting setup. Shop our full Seed Starting Supplies Collection