Lettuce Raft from Beaver Plastics for Hydroponics/ Aquaponics- Deep Water Culture
Please see the video at the bottom of the page and the sizes.
Beaver Plastic Lettuce Rafts (Beaver Boards) are floating raft systems made with recycled food grade resins and are used to cultivate fabulous leafy vegetables and herbs in a deep water culture. The entire board is built on certified food grade resins, not just the skin. The seal is a heating process we do to the polystyrene that is why it is so smooth. The Lettuce Raft is ideally suited for deep water culture, floating your plants to success. Sealed Surface Technology® Lettuce Raft resists water penetration, ensures durability and longevity, and gives growers a cost-effective system.
What makes these lettuce rafts state of the art is the fact that they:
- "Sealed Surface Technology" Resist water penetration. (See image below)
- Resist root penetration- keeping the roots intact for transplanting
- Specialized cell shape to encourage roots to bind together with the soil into a single plug
- Are built to last and have dependable durability and longevity
- Offers a cost effective system
- For indoor or outdoor use
- These lettuce rafts will float your boat and your growth!
Check out our customer's video and see Beaver Boards in action!!


Specifications |
18” |
28” |
36” |
72” |
Number of Cavities |
19 (3x6) |
28 (3 x 5 staggered) |
36 (12 x 3) |
72 (12 x 6) |
Plant Density |
2.25 plants/sq.ft (24.3 plants/sq/m |
3.5 plants/sq.ft (37.8 plants/sq/m |
4.5 plants/sq.ft (48.4 plants/sq/m |
9 plants/sq.ft (96.8 plants/sq/m |
Cavity |
8 inch (213 mm) centers |
8 inch (203mm) centers horizontal, 5.75 inch (145 mm) dentures diagonal first hole in 3 ½ inch (89mm) |
8 inch (203mm) centers horizontal, 5.75 inch (146 mm) dentures diagonal first hole in 1 ½ inch (38 mm) |
4 inch (102 mm) centers horizontal |
Overall dimensions 2 feet x 4 feet x 1 inch (609x 1219 x 25.4mm) *Cavity square with slight taper- top 1 x 1 inch (25.4 x 25.4,,) bottom ⅞ x ⅞ inch (22 x 22mm) **Cavity Round- Top 1 inch (25.4mm) diameter, bottom 13/16 inch (21 mm) diameter |
