Fence Calculator
Posts, sections, rails, pickets or panels, concrete, and gate hardware from your fence length — with spacing and waste built in.
FAQ
- How many fence posts do I need?
- Divide the total length by the post spacing and round up to get the number of sections, then add one for the final end post. A straight, open run always has one more post than sections; a fully enclosed yard uses one fewer.
- How much concrete per fence post?
- The common rule is two 50-lb bags per 4×4 line post in standard soil. Bump end, corner, and gate posts — or 6×6 posts — to three or four bags. This calculator uses your bags-per-post value across the total post count.
- How many pickets for a fence?
- Multiply the boarded run (length minus any gate openings) by 12 inches and divide by the picket width plus the gap. A 1×4 with a 1/4-inch gap covers 3.75 inches each. Add waste for cuts and dog-ear trimming.
Rooms you can plan with this tool
Real-room inspiration that uses this tool's outputs.