Use free or salvaged materials like pallets, old lumber, cinder blocks, bricks, or corrugated metal
Check local listings, construction sites, and community groups for free building materials
Choose untreated wood to avoid chemical leaching into the soil
Build beds in simple rectangular shapes to minimize cuts and waste
Keep beds narrow enough to reach the center without stepping inside
Use stakes or corner posts made from scrap wood for support
Line the bottom with cardboard or newspaper to suppress weeds
Fill the lower portion with logs, sticks, leaves, and yard waste to reduce soil needed
Top off with a mix of compost, topsoil, and native soil
Use bulk soil deliveries instead of bagged soil to save money
Reuse compost from kitchen scraps, leaves, and grass clippings
Build directly on existing soil rather than on a prepared foundation
Avoid expensive hardware by using screws, brackets, or wire only where needed
Paint or seal wood only with garden-safe products if protection is necessary
Start with one or two beds and expand gradually
Use deep mulch around beds to reduce weeds and watering needs
Recycle old containers, buckets, or tubs as small raised planters
Ask local tree services for free wood chips or mulch
Share materials and labor with neighbors to cut costs