After you have done the multiplication, subtract about 40 sq feet per window, and about 60 sq feet per door. Divide by 400 (interior paint covers 400 sq feet per gallon). The number that remains, is how many gallons you will need. If doing multiple wall colors, then you should do this process for each room (or sets of rooms) with a particular color.  Denver House Painting
You can expect to pay between $700 to $3,000 to paint wood siding. You’ll end up spending $1 to $3 per square foot, but typically you’ll find this material is cheaper than brick or vinyl. Wood requires some type of sealant, be it paint, stain or oil. Lumber takes well to a wide variety of coverings giving you endless options for modern, contemporary or classic looks. Some things to consider when choosing wood:
Staining a deck costs $540 to $1,000. Covered porches might hit $2,000. Consider negotiating the price a bit lower by combining it with a full exterior job. Painting handrails can run anywhere from $1 to $2 per linear foot, depending on whether it’s wood, metal or some other material. Although you might think this is an easy $30 to $100 job, most painters charge a minimum fee regardless of the size of the project. You’ll probably end up paying at least $150.
Most of a projects price is the cost of labor at $25 to $75 per hour. However, most contractors bid out based on the entire project which includes all work hours. Hourly rates are only useful if your pro asks to do the job as “time and materials.” However, be wary of this pricing structure, it usually shows the contractor is uncertain how long the project will take. Denver House Painting
I hired Israel General Painting to paint the exterior of my house. He helped with color schemes and also getting samples to test. As we decided on the colors he washed and prepared the house then primed and painted. Did a great job. He was very flexible with color changes. He also did a different color around doors and windows with no extra charge. He also primed and painted the porch. He was quite punctual unless my experience with other contractors, which was really good. After the painting was done he also cleaned the roof and around the house and putting back the things in place. We ended up with him painting a room in the house as well (of course that’s with a new quote). I highly recommend Israel General Painting for your painting needs. I plan on hiring Israel again to paint the interior of the rest of my house next year! Home Painters Denver CO

Use a roller to paint the rest of the wall. A good method to use is the 'W method'. You start by painting a large 3 foot (0.91 m) square W on the wall. Then, without lifting the roller, you fill in the W.[7] You can paint a wall section-by-section, and do the walls one at a time for best results. It's generally a good idea to use an extension pole for your roller instead of standing on a ladder. Make sure that neither the extension pole nor the roller has plastic handles, as plastic handles are flexible and this makes it difficult to control the painting. House Painting Denver Colorado