The comparison / Seed-starting trays
Three approaches to the same beginning. Compare the layout before the brand, and the complete setup before you buy.
Research-based / No hands-on tests / Ordinary seller links
Seller specifications checked November 12, 2026 (UTC). These are different configurations, not equivalent kits.
A little direction, without a ranking
This guide matches your organizing preference to a format. It does not score products or verify physical fit.
Nothing is saved or sent. All three formats remain available below.
Choose an answer to each question to see a format to explore.
See the format details ↓The shortlist, with the small print
Illustrations are schematic layouts, not product photographs or scale drawings.
For detachable batches
A full sheet that separates into twelve six-cell sections—an option when you want to organize seedlings in smaller batches.
Seller website · Confirm current price and shipping
| Format | 12 detachable sections of 6 cells |
|---|---|
| Published cell width × length | Approximately 1⅜ × 1⅜ inches at the rim |
| Cell depth | Approximately 2¼ inches |
| Drainage | Holes in each cell |
| Important limitation | Seller describes it as single-use |
| Check the source | True Leaf Market |
For a full-tray layout
A full tray with 50 cells, for growers who prefer handling one tray rather than separate modules.
Seller website · Confirm current price and shipping
| Format | One tray with 50 cells |
|---|---|
| Published cell width × length | 1¾ × 1¾ inches; measurement point not specified |
| Cell depth | Tray depth listed as 2¼ inches; usable cell depth not separately stated here |
| Drainage | ¼-inch drainage holes |
| Important limitation | Resolve conflicting overall dimensions before ordering |
| Check the source | Bootstrap Farmer |
For separate modules
A modular format for growers who prefer lifting and organizing smaller groups. Each module has six cells with open bottoms.
Seller website · Confirm current price and shipping
| Format | 6 cells per separate module |
|---|---|
| Published cell width × length | 1 9/16 × 1 9/16 inches; measurement point not specified |
| Cell depth | 2¼ inches |
| Drainage | Side slots and open bottoms |
| Important limitation | Check your specific bottom tray for compatibility |
| Check the source | Epic Gardening |
Before you follow a seller link
Outside dimensions determine shelf fit. True Leaf lists approximately 21 × 10½ inches. Bootstrap’s written specification lists 21¼ × 11¼ × 2¼ inches, while an image description lists 21 × 11 × 2¼. Resolve this difference with the seller before ordering.
Small modules still need a complete setup. Epic lists 4 15/16 × 3 5/16 × 2½ inches per module. Its twelve-module arrangement is specified for the brand’s Universal Bottom Tray; compatibility with other trays is unverified.
Published cell dimensions are not soil volume. Measurement points differ or are unspecified. These figures do not establish usable volume, crop suitability, or how long seedlings can remain in a cell.
A few good questions
Not necessarily. Clean containers with good drainage and at least two inches of depth can work, according to University of Maryland Extension. Start with the container guide.
We have not tested service life. True Leaf describes its insert as single-use. Bootstrap advertises a one-year warranty against breakage or warping; a warranty is not a measured durability result.
Current dimensions, package contents, supporting tray compatibility, price, shipping, availability, and return terms. Compare the cost of the complete setup.
No. These are ordinary seller links, with no affiliate attribution. No commission relationship is active on this site. Read our transparency note.