When shingling a roof, it is important to know how big (in square footage) your roof is and how much material you will need to do the job. Show
How Many Square Feet in a Bundle of Shingles?Before you start your project, you need to calculate the size of the roof you intend to cover. The square footage of a roof is normally measured in "squares" of 100 feet. Each square will need three bundles of shingles to cover it. Find the total square footage of your roof by multiplying the width by the length and then divide that number by 100 and you will get the number of squares you need to cover. Video of the Day Advertisement If the installers have to remove old material before placing the new tiles or shingles, that’s additional labor that will increase the cost of the roof installation. There may also be a charge for the removal and disposal of the old materials. Calculate your roof’s size and estimate how many bundles of shingles, rolls of felt, and squares of roofing material you need for a new roof. Add the price per square for materials to get an estimated material cost. Dimensions measured from the ground Length:
Width:
Roof Pitch: find roof pitch Optionally enter the price per square Price: $ *The average cost of materials for a standard 3-tab shingle is about $100 per square, including shingles, felt paper, and nails.Roofing Material Estimate:bundles of 3-tab shingles rolls of 15lb felt Estimated Material Cost $ total costInstallation Overview squares square feet Learn how we calculated this below Add this calculator to your site On this page:
[ see all ] Save on Pinterest Save Share on Facebook Share Share on Twitter Tweet How to Estimate the Size of a RoofIf you’re replacing a roof, the first consideration needs to be the roof’s size so you can accurately estimate project materials. In the U.S., roofs are measured in square footage, and roofing contractors typically quote projects based on the size of the roof in squares. Consequently, gathering the size of the roof in squares and square footage is the first step. Get Free Project Estimates Find Qualified Roofing Professionals in Your Area
Enter your zip code to begin Find the Area of the Footprint of the Roof To calculate a roof’s dimensions, you need to measure the roof as if it were flat, then account for roof pitch, calculate square footage, and finally determine how many squares of material are required for the roof. The calculator above can handle all of this, simply enter the length, width, and pitch, and it will determine the size of the roof in squares. Start by measuring the roof’s length and width in feet as you’re standing on the ground. Remember that the length and width need to be found for the roof, not the house, so take into account that the roof overhangs the building. Then determine the area of the roof as if it were flat. Multiply the length by the width in feet to get the area measurement. Finding the Total Roof AreaOnce the area of the roof’s footprint is known, the overall roof area can be found by accounting for the roof’s pitch. The pitch of the roof is the rise over a 12-inch run. Use our roof pitch calculator to find the pitch of your roof. Next, multiply the footprint of the roof by the multiplier below for your roof pitch to find the overall roof area. 100 × 1.054 = 105.4ft2 Roof Pitch Area MultipliersMultipliers for common roof pitches that can be used to find the total area of a roof.PitchMultiplier0/1211/121.0032/121.0143/121.0314/121.0545/121.0836/121.1187/121.1588/121.2029/121.2510/121.30211/121.35712/121.41413/121.47414/121.53715/121.60116/121.66717/121.73418/121.80319/121.87320/121.94421/122.01622/122.08823/122.16224/122.236SHOW MORE ROOF PITCH OPTIONS Finding the Size of the Roof in SquaresRoofing contractors estimate projects and materials by the square, so it is crucial to find this measurement to estimate the amount of material needed accurately. A square simply refers to a 10′ x 10′ square of roofing. This is simply 100 square feet of roof. To find the squares, divide the overall roof area by 100 and then round up. For instance, if the roof is 1550 square feet, then it is 16 squares. How to Estimate Roofing MaterialsAlthough roofing projects are estimated and sold by the square, roofing material is often not sold in 1 square increments. How Many Bundles of Shingles Will You NeedThe average bundle of shingles covers 33.3 ft2, so three bundles of shingles are needed per square. Asphalt shingles range in price from about $25 per bundle for a standard 3-tab style to around $50-$75 or more for an upgraded architectural style. Since transportation is a major cost factor, expect prices to vary by location. A typical bundle of shingles weighs about 75 pounds, while some premium products can weigh over 100 pounds per bundle, so consider delivery of materials. How Many Rolls of Felt Will You NeedRoofing felt is sold by the roll. The average roll of 15-pound roofing felt covers about 400 ft2, or 4 squares, while the average roll of 30-pound roofing felt covers about 200 ft2, or 2 squares. Rolls of felt are 36″ wide x 144′ long for 15# and 72′ long for 30#. Consider other underlayment options as needed, such as rubber or tar products. How Many Nails Will You NeedNails will also be required for any roofing project. The average 3-tab shingle needs four nails per shingle. High wind areas and other types of shingles may need more. 320 nails will be needed to install a square of standard 3-tab shingles, assuming four nails per shingle and 80 shingles per square. Other MaterialsKeep in mind that a drip-edge will be needed to protect the roof’s edge from rot, vents, and other materials such as flashing or caulk. Also, consider that the fascia boards may need to be replaced depending on their condition. Drip-edge and fascia boards are sold by the linear foot, find the perimeter of your roof in feet to find the length of drip-edge and fascia boards needed. In addition to accurately estimating materials, it is important to make sure you order extra material when ordering. Account for about 5-10% overage on your project to make sure you have enough material if measurements are a little off or material is wasted or damaged. This is more critical for materials that are special-order or have long lead times. We recommend getting free roofing estimates to understand material and labor costs and identify other project complexities that could affect the cost. Other ConsiderationsThere are some other factors to consider when installing a new roof. Learn about the costs of installing a new roof. Many localities require permits and inspections for roofing projects; check with your local inspections office and consult local building codes for more information on the requirements. Also, consider that removing old materials may be a good idea and will require disposing of a large amount of waste. Plan ahead for this by ordering a dumpster for the project. What shingles equal a square?Roof areas are generally referred to in the roofing industry using a term called a “square,” which is simply 100 square feet of roof area.
How many bundles of shingles do I need for 500 square feet?A bundle typically covers 33 square feet regardless of shingle type. You'll need to account for waste, which is material that is cut off and overlapped. Divide total square footage by 33 to find how many bundles you need. You'll also need roof underlayment and trusty nails.
How many bundles of shingles is a square?There are 3 bundles of asphalt roof shingles per square. Some specialty styles of asphalt shingles that are larger or thicker may require 4 bundles per square, but the overwhelming majority of roof shingles are three bundles to cover 100 square feet of roof.
How many shingles do I need for a 12x12 roof?Usually, a bundle of shingles contains enough material to cover ⅓ of a roofing square. This makes it relatively easy to figure out how many shingle bundles your roof requires: simply multiply the number of roofing squares by three.
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How many square feet in square of shingles
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