Find out how much products you'll need to complete your DIY project by using the Behr paint, stain, and floor coatings calculator below. Asked by Wiki User. You might first think that a 10 by 12 room is 120 square feet. Select a Product Type . The materials needed to build an addition vary slightly according to how many doors and windows the finished room has, the size of the room and the height of the ceiling, but the basic supplies remain the same. 0 0. bugear001. Calculate how much paint you'll need Avoid the temptation to under-budget on smaller surfaces like windows and doors. How many interior rooms need to be painted? 320 x 10% = 320 x 1.10 = 352; For sheet flooring, stop here. This wall painting calculator will help you to work out the minimum amount of paint required for your project, based on a coverage of 10m² per litre of paint. Choose a good quality paint and you can get by with one coat provided your prep work is done. Your paint calculation will update if you change the number of desired coats of paint. Knowing how many lamps you need to adequately illuminate a room or space can be tricky. How much paint is needed to paint a 12x12 room? To paint a 10 by 12 room, homeowners spend an average of #$300 to $420 or $2.5 to $3.5 per sq-ft. Multiply this by the number of coats you think you'll need and then figure the price per gallon. The sq. If you want to decorate your home like a professional, you will quickly learn how important lighting is to the overall design scheme. In addition to the size of the space, a variety of factors, such as the activities being conducted and wall reflectance can also play a role. 2012-10-24 05:50:12 2012-10-24 05:50:12. Estimating how much paint you need is a little tricky and the best any one can do is minimize their excess paint or wastage. Multiply the width by the length of the room and multiply the result by 2.5 to estimate higher light-level requirements. Find sq, ft. of ceiling space by multiplying 12x12. feet of coverage is listed on the paint can. Most of the time, you will apply two coats. Time required: Drawers or a dresser (2 coats of primer & 2 coats of paint) = 2 hours of actual painting time. For example: Measuring a home with 2 rooms, one 10’x12’ and one 10’x20’. Add 30 minutes to remove hardware and sand the piece before painting. Paint Calculator Tip 2: Two gallon cans of paint cover up to 800 square feet, which is enough to cover an average size room. How high is my ceiling? Interior Paint Exterior Paint Wood Stain Floor Coatings. However, the cost of painting two rooms is generally not double the cost of one room. Other walls may require sanding or patching parts of the wall so that it is easier to paint. Remember, it's always best to purchase enough paint for at least two coats. (NB: this does not encompass painting of ceilings or cost of the actual paint itself). 1. Approximate Room Size. Give the Painter Precise Measurements of Your Room in Advance. Wiki User Answered . This will help you to understand how much paint you need and save the painter’s time. To see more on how to prep a room for painting, follow the ideas here. If you need to complete a small painting project inside your home and want to hire a professional painter, expect to pay $25-35 per hour for labor. That makes the room walls 416 square feet. Enter the dimensions of your walls and then decide the dimensions of the areas you don't want to paint. If you need to sand and prime the walls and tape off trim work and cut in, it will take you probably a good 5 hours for everything. Areas where high-detail, task-specific work occurs or rooms in which elderly people reside, for example, require higher levels of light. How to Calculate How Much Stain to Use on Your Floor. 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