A 150-foot privacy fence around a typical suburban backyard costs $4,500-9,000 if you hire a contractor and $1,800-3,200 if you build it yourself. The decision to install fence projects on your own usually comes down to one weekend’s worth of saved labor and the willingness to dig 18-22 post holes by hand or with a rented auger. Done correctly, a DIY fence lasts 15-25 years for wood and 25-50 years for vinyl. Done sloppily, you will be replacing rotted posts within five seasons.
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- Permits and Property Lines Come First
- Choosing the Right Material
- Tools and Equipment You Will Need
- Post Spacing and Hole Depth
- Setting Posts in Concrete
- Installing Rails and Pickets
- Gates Are Where Most DIY Projects Fail
- Cost Breakdown for a 150-Foot DIY Project
- Timeline for the Project
- Maintenance That Doubles Lifespan
- FAQ
Permits and Property Lines Come First
Skip this step and your fence becomes the neighbor’s fence after a survey. Order a property survey from a licensed surveyor for $400-700, or pull existing plans from your county recorder’s office for $25-75. Most jurisdictions require fence permits for any structure over 6 feet tall, with some HOAs regulating fences as low as 36 inches. Front-yard fences face the strictest height limits (typically 36-48 inches) while back-yard fences allow 6-8 feet.
Call 811 (or use the online dig request portal) at least 72 hours before digging. Underground utilities including gas, electrical, fiber, and water lines run through almost every yard. Hitting a gas line costs $1,500-15,000 in fines and repairs and can put you in the hospital.
Choosing the Right Material
- Pressure-treated pine: $15-30 per linear foot installed. Cheapest, lasts 12-20 years, requires staining every 2-3 years.
- Cedar: $25-45/linear ft. Naturally rot-resistant, lasts 15-30 years, costs more upfront.
- Vinyl/PVC: $25-60/linear ft. Lowest maintenance, lasts 25-50 years, fades slightly over time.
- Aluminum: $30-65/linear ft. Best for pool enclosures and decorative fencing, lasts 30+ years.
- Chain-link: $10-25/linear ft. Cheapest with longest lifespan (40+ years), least private.
- Composite (Trex Seclusions): $40-80/linear ft. Premium recycled material, no maintenance, 25-year warranty.
Tools and Equipment You Will Need
- Post hole digger or rented gas-powered auger ($65-90 daily rental from Home Depot)
- Tamping bar (digging bar) for breaking up rocks and clay
- String line and stakes for layout
- 4-foot level and 24-inch level
- Tape measure (100-foot for layout, 25-foot for individual cuts)
- Circular saw or miter saw for cutting boards
- Cordless drill with extra batteries and bit set
- Wheelbarrow and shovel for concrete mixing
- Safety glasses, work gloves, and steel-toe boots
Post Spacing and Hole Depth
Standard post spacing is 6-8 feet on center for wood and vinyl fences. Tighter spacing (6 feet) handles wind better in exposed yards. Posts should be set 1/3 of their above-ground height into the ground, plus 6 inches of gravel below. For a 6-foot tall fence, that means 2-foot deep holes plus 6 inches of gravel for total depth of 30 inches. Frost line depth in your region may require deeper holes; check local code for the minimum.
Hole diameter should be 3 times the post width: a 4×4 post needs a 12-inch diameter hole. The extra space allows for a proper concrete collar that resists frost heave and lateral wind loads.
Setting Posts in Concrete
Mix one 80-pound bag of fast-setting concrete (Quikrete or Sakrete) per hole. Pour 6 inches of gravel into the bottom of each hole first to allow drainage and prevent rot. Place the post, plumb it with the level on two adjacent sides, and pour the concrete in dry. Add water per package instructions and let cure for 4 hours before any further work. Use temporary 2×4 braces to keep posts plumb during cure.
Slope the top of the concrete away from the post to shed water. This single detail extends post life by 30-50% by preventing standing water at the wood-concrete interface.
Installing Rails and Pickets
For wood privacy fences, install three horizontal rails: bottom rail 4 inches above grade, middle rail at the center, and top rail 6 inches below the top of the posts. Use galvanized or stainless steel screws (never nails, which back out within 5 years). Cut pickets to length and attach to rails with two screws per rail per picket, leaving 1/2 inch gap at the bottom for ground clearance.
For vinyl fence kits, the rails slide into pre-cut routed slots in the posts and the panels assemble in 30-60 seconds each. The simpler installation is the main reason DIYers prefer vinyl despite the higher material cost.
Gates Are Where Most DIY Projects Fail
Gate posts need to be 8-10 inches longer (deeper) than line posts to handle the swing load. Use 6×6 posts for gates wider than 4 feet. Install heavy-duty galvanized hinges (3 per gate, never just 2) and a latch rated for outdoor use. Saggy gates within 12 months are almost always caused by undersized hinges or insufficient post depth.
For driveway gates 10+ feet wide, consider a cantilever design or motorized opener system. Manual swinging gates over 8 feet wide will sag without an A-frame brace or steel cable tension system.
Cost Breakdown for a 150-Foot DIY Project
- Pressure-treated lumber (pickets, rails, posts): $1,000-1,400
- Concrete (22 bags at $5 each): $110
- Gravel: $50-80
- Screws and hardware: $80-120
- Stain or sealer: $90-150
- Auger rental (1 day): $75
- Total DIY: $1,400-1,930
- Add $300-450 for survey and permit fees
Timeline for the Project
A two-person crew installing a 150-foot wood privacy fence completes the job in 3-4 weekends. Day 1: layout, marking, and digging holes. Day 2: setting posts in concrete with curing time. Day 3: installing rails and pickets. Day 4: gates, finishing details, and stain. Working alone roughly doubles the timeline.
Maintenance That Doubles Lifespan
Stain or seal wood fences every 2-3 years with a quality oil-based product like Cabot Australian Timber Oil or Ready Seal. Inspect posts annually for soft spots near the ground, the most common failure point. Tighten gate hinges and latches every spring. Power wash vinyl and aluminum fences once a year with mild soap and a low-pressure setting. Trim vegetation 12 inches back from the fence line to prevent moisture damage and pest harborage.
FAQ
How deep should fence posts be?
Set posts 1/3 of their above-ground height into the ground, plus 6 inches of gravel. For a 6-foot fence, dig 30-inch deep holes (24 inches for the post plus 6 inches of gravel).
Can I install a fence without concrete?
Gravel-only post settings work for chain-link and lightweight decorative fences but fail for wood or vinyl privacy fences. Concrete is the standard for any privacy fence over 4 feet tall.
How long does it take to install a 150-foot fence?
Three to four weekends for a two-person DIY crew. Professional installers complete the same job in 2-3 days using crews of 3-4 workers and powered equipment.
Do I need a permit to install a fence?
Most jurisdictions require permits for fences over 6 feet tall, and many HOAs regulate fences as low as 36 inches. Always check local code and HOA rules before starting.
What is the cheapest fence to install?
Chain-link at $10-15 per linear foot installed. For privacy on a budget, pressure-treated pine wood at $15-25 per linear foot is the next cheapest option.
