Fence Paint Calculator

This fence paint calculator estimates the surface area to be painted across different fence layouts, including flat fences, picket fences, double-sided fences, sloped fences, and panel-based fences. Formulas are provided below.

Flat Fence
The paintable area of a flat fence is A = length × height, where both are measured along the fence line. For a fence 60 ft long and 6 ft high, the calculator gives A = 60 × 6 = 360 ft².

Picket Fence
For a picket fence, area is A = number of pickets × picket width × height. If there are 100 pickets each 4 inches (0.33 ft) wide and 3.5 ft high, the calculator returns A = 100 × 0.33 × 3.5 ≈ 115.5 ft².

Double-Sided Fence
If painting both sides, total area is A = 2 × (length × height). For a 40 ft fence that’s 5 ft tall, the calculator gives A = 2 × 40 × 5 = 400 ft².

Sloped Fence
The area of a sloped fence is A = length × average height. For a 50 ft long fence rising from 4 ft to 6 ft, average height = (4 + 6) / 2 = 5 ft, so A = 50 × 5 = 250 ft² using the calculator.

Panel-Based Fence
For panel-based fences, area is A = number of panels × panel width × panel height. If using 10 panels each 6 ft wide and 6 ft tall, the calculator gives A = 10 × 6 × 6 = 360 ft².

Weekend DIY tip: Each of our 6 × 8 ft fence panels was straightforward, but the curved gate was tricky. The fence paint calculator helped with the basics, and for the rounded sections, I checked sector area using the area calculator. Total coverage ended up much closer than my original guess.