Wood Fence
Calculate posts, rails, pickets, and concrete needed for a wood privacy fence. Enter fence length, height, and picket dimensions for instant material estimates.
About This Calculator
Our wood fence calculator helps homeowners, contractors, and DIY enthusiasts estimate the precise materials needed for building a standard wood privacy fence. Whether you are planning a backyard enclosure, garden boundary, or property perimeter fence, this tool computes the number of posts, sections, rails, pickets, and concrete volume required for your project.
The calculator uses standard fencing formulas derived from construction industry practices: number of sections = ceil(fence length / post spacing), posts = sections + 1, post length = 1.5 x fence height (with 1/3 buried for concrete footing), rails = sections x rails per section, and pickets = ceil(fence total width / (picket width + picket spacing)). Concrete volume for cuboid posts uses the formula 8 x post width x post thickness x buried depth per post. All dimensions use metric units for global consistency, with imperial equivalents noted when relevant.
Regional Notes
India: Wooden fencing is commonly used in hill stations, resorts, and suburban residential properties. Boundary walls are typically brick or concrete, but wood fences are preferred for aesthetic landscaping. Use termite-resistant treated wood and set posts in concrete mix (1:2:4 ratio). Common wood species include eucalyptus, bamboo, and sal. Post spacing typically ranges from 2 to 2.5 m.
US: Wood privacy fences are extremely popular in residential neighborhoods. Standard lumber dimensions follow imperial measurements: common picket widths are 5.5 inches and 3.5 inches, posts are typically 4x4 pressure-treated lumber set 24-36 inches deep in concrete. Most fence sections span 8 ft between posts. Cedar and pressure-treated pine are the predominant materials.
UK: Closeboard feather-edge fencing is traditional, but standard wood panel fences are common for garden boundaries. Timber treatment is essential due to damp conditions. Standard panel widths are 1.8 m (6 ft) and posts are typically set in postcrete. Always check with local planning authorities for permitted development height restrictions, which are usually 2 m for boundary fences.
Features:
- Instant calculations for posts, sections, rails, pickets, and concrete volume
- Adjustable post spacing, picket width, and picket spacing
- Visual bar chart and doughnut chart breakdowns of component quantities
- Concrete volume estimation for post footings
- Shareable URLs with saved input values for project planning
- Region-aware defaults for India, US, and UK
- Mobile responsive for on-site measurements
Frequently Asked Questions
How many posts do I need for a wood fence?
The number of posts for a wood fence is calculated as: posts = ceil(fence length / post spacing) + 1. For example, a 30 m fence with 2.4 m post spacing needs 14 posts. Standard post spacing ranges from 6 to 8 feet (1.8 to 2.4 m) depending on local codes and wind loads.
How many pickets do I need for a wood fence?
The number of pickets is calculated as: pickets = ceil(fence length in cm / (picket width + picket spacing)). For a 30 m fence with 10 cm wide pickets and 5 cm spacing, you need approximately 200 pickets. Wider pickets reduce the total count while tighter spacing increases it.
How deep should wood fence posts be set?
Wood fence posts should be set at least 1/3 of their total length into the ground. For a 1.8 m tall fence, posts need to be 2.7 m long with 0.9 m buried. The post hole should be three times the post width for proper concrete encasement. Always check local building codes for frost depth requirements in your area.
How much concrete per fence post do I need?
For a cuboid post, concrete volume per post = 8 x post width x post thickness x post depth (buried portion). A typical 10 cm x 10 cm post buried 0.9 m deep requires approximately 0.072 m³ of concrete per post. One 50 lb (22.7 kg) bag of concrete mix yields about 0.02 m³, so you need roughly 3-4 bags per post.
How many rails per section does a wood fence need?
A standard wood fence typically uses 2 to 3 rails per section. For fences up to 1.2 m (4 ft) tall, 2 rails are usually sufficient. For taller fences between 1.2 and 2.4 m (4 to 8 ft), 3 rails provide better structural support. Rails run horizontally between posts and carry the weight of the pickets.
What is the standard post spacing for a wood fence?
Standard post spacing for a wood fence is 6 to 8 feet (1.8 to 2.4 meters). Closer spacing provides a sturdier fence but increases material costs. Wider spacing reduces costs but may require stronger rails. In areas with high winds or heavy snow loads, closer spacing is recommended for additional structural integrity.
What type of wood is best for a fence?
Cedar and pressure-treated pine are the most common choices for wood fences. Cedar is naturally rot-resistant, lightweight, and develops a attractive silver-gray patina over time. Pressure-treated pine is more affordable and durable but requires staining or sealing. Redwood is another premium option in the US. For posts, always use pressure-treated lumber rated for ground contact.
How much does a wood fence cost?
Wood fence costs vary widely by region and material. In the US, expect $15-$35 per linear foot installed for a standard 6 ft privacy fence. In India, wooden fencing costs ₹500-₹1,500 per running meter depending on wood type (bamboo, eucalyptus, or teak). In the UK, timber fencing ranges from £25-£60 per meter installed. Material costs include posts, rails, pickets, concrete, and hardware.