View Interior Painting Price Per Square Foot US. Trim takes a lot of time. To calculate the price per square foot of painting a house, you'll need to start by calculating the area of the surfaces you plan to paint.
The paint you are choosing for interior and exterior is the key.
When calculating the cost to paint a room, square footage is the most important factor to consider. Paint contractors usually price projects on a per square foot basis, although they may quote you a flat rate. The surface area of the painting project will determine the cost of supplies needed. To estimate how much paint your project requires, determine the measurements of the room you plan to paint and round it to the nearest foot.