Free Hydroponic Building Plans

Free step-by-step plans with complete materials lists and affiliate links.

With 10 plans to choose from, it's easy to find one that fits your space and skill level. Use the filters below to narrow things down, or if you're not sure where to start, let us help you pick a system

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Indoor Shelf DWC Space Saver
Beginner DWC 12x24

Indoor Shelf DWC Space Saver

A compact deep water culture system that fits on a standard wire shelf. Perfect for apartments and small spaces. Grows up to 24 heads of lettuce at once.

lettuce herbs microgreens

Cost: $85-$120

Build: 45 min

5.0 (1)
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DWC 5-Gallon Bucket System
Beginner DWC 12x12

DWC 5-Gallon Bucket System

The classic single-bucket DWC setup for growing one large plant. Perfect for peppers, tomatoes, or a massive basil bush indoors or outdoors.

peppers tomatoes herbs

Cost: $25-$45

Build: 20 min

0.0 (0)

1 builder

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DWC Vertical Bucket Tower
Intermediate DWC 12x12

DWC Vertical Bucket Tower

A vertical stack of four 5-gallon DWC buckets on a wooden frame. Grow four large plants in a single square foot of floor space.

tomatoes peppers cucumbers

Cost: $60-$90

Build: 1.5 hrs

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DWC 18-Plant Storage Tote System
Beginner DWC 24x48

DWC 18-Plant Storage Tote System

Two 27-gallon totes with 9 plants each create an 18-plant lettuce and herb factory. Simple DWC with shared air pump.

lettuce herbs greens

Cost: $70-$100

Build: 45 min

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DWC Floating Lettuce Raft
Beginner DWC 24x48

DWC Floating Lettuce Raft

A commercial-style floating raft system scaled for home use. A styrofoam raft floats on a shallow reservoir, growing 24 heads of lettuce at once.

lettuce greens herbs

Cost: $50-$80

Build: 30 min

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DWC Strawberry Bucket Garden
Beginner DWC 12x24

DWC Strawberry Bucket Garden

Four 5-gallon DWC buckets configured specifically for strawberries, with tips for runners, hand pollination, and berry-specific nutrients.

strawberries

Cost: $45-$70

Build: 30 min

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Hydroponic Essentials Affiliate
Hydroponic Water Chiller (1/10 HP)
If your nutrient solution gets above 72F, root rot risk skyrockets. A water chiller keeps temps in the safe zone automatically. Essential for DWC growers in warm climates.
Budget option: Frozen water bottles rotated into the reservoir twice a day work in a pinch. But if you are growing year-round in a warm space, a chiller pays for itself in saved crops.
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MaxiGro + MaxiBloom Dry Nutrients
Dry nutrients last longer, cost less per gallon, and ship cheaper than liquids. MaxiGro for vegetative growth, MaxiBloom for flowering. One scoop per gallon, that is it.
I switched to dry nutrients after doing the math. A bag of MaxiBloom makes over 150 gallons of nutrient solution for about $15. The liquid Flora Series is great but costs 5x more per gallon. — Paul
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Full-Spectrum LED Grow Lights (2 ft)
These linkable 2-ft LEDs daisy-chain perfectly under shelving units. Full-spectrum 6500K light keeps lettuce and herbs compact and productive without heat buildup.
These are what I use on my shelf rack builds. They link end-to-end so you only need one outlet per shelf. I have had sets running 16 hours a day for over a year with no issues. — Paul
Budget option: A sunny south-facing window provides enough light for lettuce and herbs from spring through fall. Grow lights are only essential for indoor setups without natural light.
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DWC Classroom Demo Kit
Beginner DWC countertop

DWC Classroom Demo Kit

A mini DWC in a clear container designed for schools and kids. Watch roots grow in real time and learn plant biology hands-on.

herbs lettuce

Cost: $15-$25

Build: 10 min

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DWC Indoor Tomato Garden
Intermediate DWC 24x48

DWC Indoor Tomato Garden

Four 5-gallon DWC buckets optimized for indoor tomatoes with trellis support, tomato-specific nutrients, and pollination tips.

tomatoes

Cost: $80-$120

Build: 1 hr

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DIY 5-Gallon Bucket Hydroponic System
Beginner DWC 12x12

DIY 5-Gallon Bucket Hydroponic System

The most popular DIY hydroponic project in the world. Build a complete Deep Water Culture system in 30 minutes with a 5-gallon bucket, air pump, and nutrient solution. Grows lettuce, herbs, peppers, and tomatoes.

lettuce herbs peppers tomatoes

Cost: $25-$45

Build: 30 min

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Classroom Hydroponic System (Easy STEM Project)
Beginner DWC 24x16

Classroom Hydroponic System (Easy STEM Project)

A simple floating raft DWC system designed for classrooms. Grows 8-12 plants on a single table, teaches biology, chemistry, and engineering. Perfect for STEM programs and science fairs.

lettuce herbs microgreens

Cost: $35-$60

Build: 30 min

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