How much paint do I need for a 12 x 12 room? Calculating how much stain to use on a floor is not a difficult task, but some measuring and basic math skills are required. To paint a 10 by 12 room, homeowners spend an average of #$300 to $420 or $2.5 to $3.5 per sq-ft. 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. Calculating the CFM of a room helps when choosing a fan. The cost of the paint itself will also need to be factored into your budget. How to Determine the Ceiling Light Size for a Room. Round up to the nearest whole number. That is how much it would cost to paint the room. Source(s): DIY projects. Windows and Doors On the right hand side of the calculator, you can select how many windows and/or doors are in the room you’re trying to paint so that the calculator knows not to count that square footage in the estimate. In general, the average cost of painting one room ranges from $380 to $790, depending upon the size of the room, and not including ceilings, trim, or the cost of paint. This means that you will need two gallons, maybe a little more if you are planning on painting the ceiling as well. To see more on how to prep a room for painting, follow the ideas here. 320 x 10% = 320 x 1.10 = 352; For sheet flooring, stop here. Calculate how much paint you'll need Avoid the temptation to under-budget on smaller surfaces like windows and doors. Plan 1 gallon of ceiling paint. Total cost sums exclude any taxes charged for both materials and labor amounts. 1 door, including frame, measures 4 feet (1.2 m) wide by 8 feet (2.4 m) tall. These could include windows, sockets or skirting boards, for example. Subtract the surface area of doors, including the frame, and windows when calculating how much paint you'll need. PLEASE NOTE: These calculations are not intended to give more than a rough estimate. Multiply this by the number of coats you think you'll need and then figure the price per gallon. This excludes baseboards, wall repair, ceilings, or trim. You can spread out overhead expenses — an extra room just adds more square feet, some extra time and more gallons of paint. If you are painting a simple 12 foot by 12 foot room, you will need about $25-$100 worth of paint. Find sq, ft. of ceiling space by multiplying 12x12. Buy at least two paint rollers.and an extension pole for painting the ceiling and various sized brushes for hard to reach areas and edging. Wiki User Answered . How many interior rooms need to be painted? 2012-10-24 05:50:12 2012-10-24 05:50:12. First, measure your walls and ceilings. Multiply the width by the length of the room and multiply the result by 2.5 to estimate higher light-level requirements. A typical gallon of paint has the ability to cover 400 square feet of wall space. You will always have excess due to paint only being available in certain size cans and its normally cheaper to buy the larger cans when you work out the per litre or gallon rate. Knowing how many lamps you need to adequately illuminate a room or space can be tricky. 12′x14′ is 168 square feet. Step 2 Multiply the three measurements from step 1 to determine the cubic footage of the room. Also measure the height of the room from the ceiling to the floor. If you do it yourself, this can cost between $200-$300. You might first think that a 10 by 12 room is 120 square feet. Furniture: If you plan on painting the furniture in the room, do it while you wait for the ceiling or wall paint to dry to keep you moving towards the finish line. How high is my ceiling? 1. Interior Paint Exterior Paint Wood Stain Floor Coatings. Like framed pictures, doors and windows can have a major impact on the style and feel of a room. Assuming the ceilings are 8 feet high, you have to calculate 12′x8′=96x2=192+14′x8′=112x2=224. With the time it takes to paint a room typically taking two days, including preparation and a first coat, and a second coat the following day when the first has dried, the cost of painting a single medium-sized room will cost around £400 for the labour. – required drywall measurements. Top Answer. Add 30 minutes to remove hardware and sand the piece before painting. Results are approximations based on room areas painted in the United States. Good luck! How to Calculate How Much Stain to Use on Your Floor. Time required: Drawers or a dresser (2 coats of primer & 2 coats of paint) = 2 hours of actual painting time. Calculate how many BTUs you need to heat a room or even a house with a wood-burning, pellet or gas fireplace, insert or stove. Lv 6. 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. (excluding the labor and cost of brushes, thinners, rollers, tape, and drop clothes) Also a ladder if you need to paint trim that you can't reach from the floor. Find out how much products you'll need to complete your DIY project by using the Behr paint, stain, and floor coatings calculator below. Areas where high-detail, task-specific work occurs or rooms in which elderly people reside, for example, require higher levels of light. Typical ceilings are 8-foot high, so adjust the materials needed for a higher ceiling. Choose a good quality paint and you can get by with one coat provided your prep work is done. Painting a room of 10x12 measurement will cost anywhere between $380 and $790. As long as you're going to all this work, might as well pick a paint that's rated for the best coverage (so you may not need more than one coat). Approximate Room Size. Your paint calculation will update if you change the number of desired coats of paint. Make sure to input the following drywall measurements: Room dimensions: you need to type in the length, width, and height of your room. Asked by Wiki User. 0 0. bugear001. Paint Calculator Tip 2: Two gallon cans of paint cover up to 800 square feet, which is enough to cover an average size room. While it seems like a rip off to pay $50 for a gallon when you can get the same color and same mount for $12, it may not be worth it in the long run. The walls are 3 metres high, each wall is approx 4 metres in width, and windows and doors make up approx 0.5 of a metre of each wall leaving a paintable surface of 3.5 metres per wall. The surface area to paint is therefore 14 metres (4 walls x 3.5 metres each) x 3 metres high = 42 square metres. This BTU Calculator will determine what hearth product size is required with only a few steps and information such as square footage (sq ft). Try measuring the room yourself before the painter arrives. Simple Ways to Reduce the Cost of Painting a Room. 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. About 1.5 gallons. Keep in mind that painting only one room costs more per square foot, compared to updating a couple of rooms or the entire house. A 12 x 12 x 8 room is about 350 square ft., not counting the ceiling. If you decide to paint the same 10x12 room yourself, it will cost you anywhere between $200 and $300. To get an estimate of how much it would cost to paint an entire home's interior, HomeAdvisor gave us a state-by-state breakdown using their True Cost Guide, detailed below. Note that painting a single room is more expensive per sq-ft, compared to touching up many rooms or the entire house. If you are also painting the ceiling and trim work, I would add 1.5 hours. But that's the floor square footage not the walls. (NB: this does not encompass painting of ceilings or cost of the actual paint itself). 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