An interesting way to get a hyper-accurate estimate—especially for unique surfaces—is to roll out a in a discreet area first. This "real-world" measurement factors in exactly how much paint your specific wall texture, porosity, and previous colors consume, which can vary significantly from the theoretical "400 square feet per gallon" listed on the can. Factors That Change Your Calculation
: Subtract the area of windows (approx. 15 sq. ft. each) and doors (approx. 20 sq. ft. each). how do you know how much paint to buy
: Multiply the length of each wall by its height to find the square footage. 20 sq. ft. each).
To determine how much paint to buy, you must first calculate the total square footage of your project and then divide it by the paint's standard coverage rate. and previous colors consume
: Multiply this number by the number of coats you plan to apply (typically two coats for best results). Interesting Feature: The "Sample Patch" Test
: Divide the resulting total square footage by 350–400 square feet , which is the average coverage for one gallon of paint.