Fence calculator
Fence length
ft
Post spacing
ft
6–8 ft is standard
Gates
gates
Each adds one post
Rails per section
2 rails (up to 4 ft tall)
3 rails (5–6 ft tall)
4 rails (8 ft tall)
Picket width
in
A "1 × 6" picket is 5.5 in
Gap between pickets
in
0 for privacy fences
Post size
4 × 4 in
6 × 6 in
Hole diameter
in
About 3× the post width
Concrete depth
in
Hole depth minus 6 in of gravel
Concrete bag
80 lb (0.6 ft³)
60 lb (0.45 ft³)
50 lb (0.375 ft³)
You'll need
Free calculator by Backyard Numbers ↗