02/08/2026
Build a $15 raised bed that feeds a family of 4 all summer 🌱
(Full guide in 1st comment) 👇
CAPTION:
A 4x4 foot raised bed costs $15 using untreated lumber and produces 50-80 pounds of vegetables from June through October—enough fresh produce to cut your grocery bill by $200+ per season.
Why This Size Works:
Four feet wide lets you reach the center from any side without stepping on soil. Four feet long fits standard 8-foot boards cut in half. Twelve inches deep provides root space for 90% of vegetables.
This footprint grows 16 plants comfortably using square foot gardening method—one plant per square foot. Mix fast crops (lettuce, radishes) with long-season crops (tomatoes, peppers) for continuous harvest.
Materials You Need:
Four 2x6 boards (8 feet long, untreated cedar or pine) - $12-15 total. One box 3-inch deck screws - $5. Power drill or screwdriver. That's it. Total cost under $20.
Never use pressure-treated lumber for vegetable beds—chemicals leach into soil. Cedar naturally resists rot for 5-8 years. Pine lasts 3-5 years but costs half as much.
How to Build It:
Cut each 8-foot board in half to create eight 4-foot pieces. Lay four boards flat forming a square. Screw corners together using two screws per corner—predrill holes to prevent splitting.
Stack second layer of four boards on top of first layer. Offset corners like bricks for strength. Screw through top boards into bottom boards at corners and middle. Takes 20 minutes total.
Where to Place It:
Choose spot with 6-8 hours direct sun. Level ground is ideal but not required—bed self-levels when filled. Place on grass, dirt, patio, or driveway. Lay cardboard underneath to kill grass and prevent weeds growing up.
Keep 3 feet away from fences or walls for airflow and access. Orient long side facing south for maximum sun exposure on all plants.
Fill With This Soil Mix:
Don't use garden soil—too heavy, compacts in raised beds. Mix equal parts: bagged potting soil (2 cubic feet), compost (2 cubic feet), peat moss or coconut coir (2 cubic feet). Total: 6 cubic feet fills 12-inch deep bed.
Cost: $25-30 for soil mix first year. Add 2 inches compost each spring in following years—no need to replace all soil.
What to Plant:
Use square foot method—divide bed into 16 sections (each 12x12 inches). Plant one tomato, pepper, or eggplant per square. Four lettuce or spinach per square. Sixteen radishes or carrots per square.
Rotate fast crops (radishes harvest in 25 days) with succession plantings. When radishes finish, plant beans in same square. Maximize production all season.
Maintenance:
Water daily in summer—raised beds drain fast. Mulch with 2 inches straw to retain moisture. Fertilize every 2 weeks with liquid fertilizer during growing season.
This bed lasts 3-8 years depending on wood type. When sides rot, unscrew corners, replace boards, reassemble. Soil stays in place—just rebuild frame around it.
Penn State Extension research shows 4x4 raised beds produce equivalent yields to 16 square feet of ground garden while using 40% less water, requiring zero tilling, and providing better drainage that prevents root rot in heavy clay soils.
Who's building one this weekend? Drop 🙋 below!
