Free Hydroponic Building Plans

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

With 17 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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Showing 17 plans

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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NFT PVC Pipe Wall System
Intermediate NFT 24x48

NFT PVC Pipe Wall System

A wall-mounted NFT system using PVC pipe channels. Grows 12 plants of lettuce and greens in just 2 feet of wall space with recirculating nutrient flow.

lettuce herbs greens

Cost: $80-$120

Build: 2 hrs

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Wick System Starter Tote
Beginner WICK 12x24

Wick System Starter Tote

A passive wick system in a simple storage tote. No pumps, no electricity - just cotton wicks drawing nutrients to 6 plants of herbs and microgreens.

herbs microgreens lettuce

Cost: $20-$35

Build: 15 min

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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 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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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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Kratky Lettuce Factory Tote
Beginner KRATKY 12x24

Kratky Lettuce Factory Tote

A no-pump, no-electricity lettuce factory in a single 8-gallon tote. Six heads of lettuce grow passively using the Kratky method.

lettuce spinach greens

Cost: $20-$35

Build: 10 min

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Kratky Balcony Salad Garden
Beginner KRATKY 24x48

Kratky Balcony Salad Garden

Ten Kratky totes on a small balcony grow a complete salad garden - lettuce, spinach, kale, and herbs - with no pumps and no electricity.

lettuce herbs spinach kale

Cost: $40-$60

Build: 30 min

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NFT Tabletop Lettuce Farm
Intermediate NFT 12x36

NFT Tabletop Lettuce Farm

A compact 2-channel NFT system that fits on a table or countertop. Recirculating nutrient film grows 8 heads of lettuce in a small footprint.

lettuce herbs greens

Cost: $50-$75

Build: 1 hr

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NFT Vertical Wall Garden
Intermediate NFT 24x48

NFT Vertical Wall Garden

A stunning 4-tier wall-mounted NFT garden growing 20+ plants of lettuce, herbs, and strawberries. A living wall that produces food.

lettuce herbs strawberries greens

Cost: $120-$180

Build: 2.5 hrs

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NFT Greenhouse Channel System
Advanced NFT 48x96

NFT Greenhouse Channel System

A large 6-channel NFT system for a greenhouse or garage. Grows 36 plants at semi-commercial scale with recirculating nutrient flow.

lettuce greens herbs strawberries

Cost: $150-$220

Build: 3 hrs

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Ebb & Flow Vertical Shelf System
Intermediate EBB-FLOW 12x24

Ebb & Flow Vertical Shelf System

A 3-tier wire shelf with flood trays on each level. Grow 24-30 plants vertically with timed flood-and-drain cycles and integrated grow lights.

lettuce herbs greens strawberries

Cost: $150-$220

Build: 2.5 hrs

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Hydroponic Essentials Affiliate
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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Flood Table Hydroponic Grow System (2x2 ft)
This all-in-one flood table kit comes ready to grow in under 20 minutes. Just add growing media and nutrients — the tray, reservoir, pump, and timer are all included.
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Mason Jar Hydroponic Herb Garden Kit
Skip the shopping list and start growing tonight. This all-in-one kit gives you six Kratky jars with pre-sown plugs, so fresh herbs are just add-water easy.
I keep a set of these on my kitchen counter year-round. Zero maintenance, no pump, no timer. Just top off the water when it gets low. — Paul
Budget option: Any wide-mouth mason jar works. Wrap it in foil to block light, cut a hole in the lid for the net cup, and you are in business for under $5.
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Wick System Classroom Science Kit
Beginner WICK countertop

Wick System Classroom Science Kit

An educational wick build using recycled 2-liter bottles. Great for school projects and teaching kids about plant science and capillary action.

herbs lettuce microgreens

Cost: $5-$15

Build: 10 min

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Wick System Kids' First Garden
Beginner WICK countertop

Wick System Kids' First Garden

A fun, colorful wick build designed for children using recycled containers. Includes educational activities about plant growth and capillary action.

herbs lettuce microgreens

Cost: $10-$20

Build: 15 min

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Aeroponic Tower Garden
Advanced AEROPONICS 12x12

Aeroponic Tower Garden

A vertical PVC tower with misting nozzles grows 20-30 plants in a single square foot. The fastest-growing system for leafy greens and herbs.

lettuce herbs strawberries greens

Cost: $120-$180

Build: 3 hrs

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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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