Free rafter length calculator

Author: s | 2025-04-24

Online rafter length calculation. Use this simple education rafter length calculator to calculate rafter length. Enter the rafter run (ft) and the angle of the rafter (degrees) into the Rafter Length Calculator. The calculator will evaluate the Rafter Length.

Rafter Length Calculator. Calculate rafter lengths for your

Wendricks Rafter Calculator Understanding Wendricks Rafter CalculatorIntroductionWendricks Rafter Calculator is a tool used in carpentry and construction to determine the length of rafters, which are sloping beams that support a pitched roof. Accurate rafter measurements are crucial for ensuring the structural integrity and stability of a roof. The calculator simplifies this process by providing a quick and efficient way to calculate rafter length based on specific inputs.The FormulaThe formula used by Wendricks Rafter Calculator is based on the Pythagorean Theorem, which relates the lengths of the sides of a right-angled triangle. In the context of rafters, the formula is as follows:RafterLength(L)=(Span2+Rise2)​Where:L is the rafter length.Span is the horizontal distance from the base of the roof to the top of the rafter.Rise is the vertical distance from the base of the roof to the highest point of the rafter.Understanding the ComponentsSpanThe span represents the horizontal distance or the run of the roof. It is the measurement from the outside edge of one supporting wall to the outer edge of the opposite supporting wall.RiseThe rise is the vertical distance from the top of the supporting wall to the highest point of the roof. It essentially measures the slope or pitch of the roof.Rafter LengthThe rafter length is the hypotenuse of the right-angled triangle formed by the span and rise. It is the distance the rafter will cover from the base to the highest point.How to Use Wendricks Rafter CalculatorInput Values:Measure the span and rise of the roof accurately.Enter these values into the calculator.Calculate:The calculator will use the formula mentioned above to compute the rafter length.Result:The result will be the calculated rafter length needed for your specific roof design.Wrapping it upWendricks Rafter Calculator simplifies the process of determining rafter length, providing a practical solution for carpenters and builders. By understanding the formula and inputting accurate measurements, users can quickly obtain the necessary information to complete their roofing projects with precision and efficiency.Remember that while the calculator can streamline the calculation process, it is essential to consider other factors such as roof load, local building codes, and structural requirements when designing and constructing roofs.

Rafter Calculator - Rafter Length Calculator

Pythagoras theorem of right angle formula and you can use following formula and equation to find the length of rafter and pitch for roof or slop● Rafter^2 = rise^2 + run^2 (by Pythagoras theorem of right angle formula)● pitch = rise/run (where pitch in express in percentage● pitch = tan (angle), where angle is pitch of roof expressed in degree.Pitch of roof calculator/ or pitch roof calculator● take the measurement of horizontal run length:- it is horizontal distance between roof ridge and wall of building, assuming it is 8 meters● measure the vertical height of rise of your roof, assuming it is 2 meters.● Calculate the rafter length, as Rafter^2 = rise^2 + run^2, Rafter^2 = 2^2 + 8^2, Rafter^2 = 4+64, rafter = √68, Rafter = 8.25 meters, hence rafter for ptched roof will be 8.25 meters.● Calculate the roof pitch as the proportion of rise and run as pitch = rise/ run, pitch = 2/8 = 25%, hence pitch for roof will be 25%.● Recalculate the value of pitch in angle, as pitch = tan (angle), so angle = arctan (pitch) = arctan (0.25) = 14°, hence pitch for roof will be 14°.● find the roof pitch is in the form of X:12, as pitch = X/12, so X = pitch × 12 = 0.25 ×12 = 3, hence pitch of your roof will be 3:12, and it can be also express in fraction as 3/12, or in angle as 14°, or in degree as equivalent to 14°.Pitch for roofRoof for pitch ratio for a construction of buildings depend on the some factors like as roofing materials and local environment (climate ) conditions help to determine the appropriate amount of roof pitch, due to in fact the roof pitches fall in the range accordance to slope such as moderate, fairly steep and almost flatGood pitch for roof is generally used in construction is range between 4/12 to 9/12. low slopes roof has the slight angle lower than pitches 4/12 , flat roofs are associated with the pitches lower than 2/12 and steep slope roofs designeted with highly angled that is consist the pitch greater than the 9/12.Pitch for roof:- most commonly used roof pitches is range between 4/12 to 9/12 or a roof vertical rises 4 to 9 inches for every 1 foot or 12 inches of horizontal run. This is standard and good size of roof pitch

Roof Rafter Length Calculation How to calculate rafter length

FREE Try Before You Buy trial; your App Store account is not charged by Apple during the free trial.The award-winning and industry-leading Construction Master® Pro saves time and reduces costly errors!As an app for your phone or tablet, it is ideal for anyone who works with dimensions and is interested in improving speed, accuracy, and productivity.You get two apps: Construction Master Pro & Construction Master Pro Trig. Both include a built-in full User’s Guide and the ability to press and hold a key for specific help! Built with the same core engine that powers the industry-standard advanced construction-math handheld calculators from Calculated Industries.-----WHY IT'S A MUST-HAVE TOOL-----• Powerful built-in solutions make it ideal for completing layouts, plans, bids, and estimates• Work in and convert between all common building dimensional formats US & Metric• Built-in right angle functions simplify square-ups, rafters, slopes, and more• Full trigonometric functions-----BUILT-IN SOLUTIONS-----• Dimensional Math and Conversions• Feet-Inch-Fraction, Inch Fraction, Yards• Decimal Feet and Inches (10ths, 100ths)• Preset Fractions (1/2" through 1/64") • D:M:S, Decimal Degree Entry and Conversions • Full Metric Function (m, cm, mm) -----RIGHT ANGLE SOLUTIONS-----• Complete Right Angle/Rafter Calculations • Pitch Key (Slope and Grade) • Rise, Run, Diagonal/Common Rafter Keys • Regular and Irregular Hip/Valley & Jack Rafter Keys • Rafter Cutting Angles (Plumb, Cheek, and Level Cuts) • Stair Layouts (including – Riser Limit, Stairwell Opening, Headroom, Floor Thickness) • Rake-Wall (including Arched) -----AREA AND VOLUME SOLUTIONS-----• Square and Cubic • Roof – Bundles, Squares, 4x8 Sheets, Pitch, Plan Area • Drywall, Siding and Paneling 4x8, 4x9 and 4x12 • Column/Cone Area and Volume • Basic & Advanced Circular Calculations • Weight per Volume Conversions • Length, Width, and Height Keys • Blocks, Footings -----SPECIAL FUNCTIONS-----• Trigonometric Function Keys: Sine, Cosine, Tangent, Arcsine, Arccosine, Arctangent• Board Feet • Studs: Find number On-center • User-Definable Preferences • Cost per Unit (total costs based on unit price) • Equal-Sided Polygon • Compound Miters • Crown Angle • Advanced Paperless Tape for all functions• 4 Memories-----APP-ENHANCED FEATURES-----• Entry-editing Backspace Key – enable with Legacy Mode or double-tap the display• Context-sensitive Help -- just. Online rafter length calculation. Use this simple education rafter length calculator to calculate rafter length. Enter the rafter run (ft) and the angle of the rafter (degrees) into the Rafter Length Calculator. The calculator will evaluate the Rafter Length.

Rafter Length Calculator - RoofCalc.org

Home Menu Sticky Menu Please help support us by telling friends and colleauges about this site! Gambrel Roof Framing Geometry - Inch Geometric Calculator Only - Consult Local Building and Engineering Regulations Wall Width Rafter Depth Wall Height Show Wall Height Lower Roof Angle Lower Roof Length Upper Roof Angle Eve Overhang Birds-mouth Seat Feet Inch Gusset Base Purlin Thick Ridge Thick ? Roof Length is used to calculateTotal Roof Area.Roof Length may be longer than building length for end overhang. Roof Length Color Dimensions ? Show an average height person in diagram for visual perspective of dimensions. Person Height ? Restrict Gambrel to conform to (fit inside) a Semi Circle. Drag Lower Roof Angle slider to adjust. Semi Circle Left click, release and drag in top diagram to directly measure full scale dimensions. Share this Calculation Scale Thanks so much to blocklayer.com for the Gambrel roof calculator.What an amazing tool!!! We milled our own timber for our rafters and post and beam barn structure which built on our property here in Ireland. We choose to use gussets made from birch plywood which were nailed and glued to the rafter trusses, which were made in a jig to keep everything fitting nice and tight. Here are a few photos thanks so much blocklayer.com for our amazing roof. The calculator made it so easy all we need to do is input a few measurements and hey presto the trusses we made were a perfect fit. Thanks a million!

Rafter Length Calculator - onlycalculators.com

Calculated Industries Construction Master Pro Trig - 4080 Advanced Feet-Inch-Fraction Construction-Math Calculator with Full Trig FunctionsThe Construction Master Pro Trig provides construction professionals with complete trig functions to help them quickly and easily solve complex construction-math problems. It saves time, reduces costs and prevents re-work. You can effortlessly work in and convert between feet-inch-fractions and metric units. Instantly calculate complex construction challenges for stair layouts, roofs, framing and much more. Full trig functions with sine, cosine, tangent, arcsine, arccosine and arctangent.Construction Calculations: Work in and convert between any building dimension, including Metric Trig Function Find Weight per Volume Built-in Right-Angle solutions Complete Stair Layouts Roof, Rafter and Framing solutions Circular: Arcs, Circumference, Segments and More Stairs - Set Riser Height and solve for Stairwell Opening Studs - Find number On-center for an entered Length Compound Miter Cuts Arched Rake-Walls Equal sided Polygons For Contractors, Architects, Engineers, Project Managers, Estimators, Draftspersons, Builders, Framers, Carpenters, TradespersonsDimensional Math and Conversions Work in and convert between all building dimensional formats: Yards, Feet-Inch-Fractions, Decimal Feet and Inches and Metric - including Area and Volume D:M:S to Decimal Degree conversions Weight per Volume Full Trig Function: Sine, Cosine, Tangent, Arcsine, Arccosine and Arctangent simplify complex design and construction-math Built-In Time Saving Functions Complete Stair calculations for Risers, Treads, Stringer Length and Incline Angle Set Riser Height and solve for Stairwell Opening Built-in Right-Angle Functions Roof Function finds Area, Bundles, Squares and 4x8 Sheathing for Flat or Pitched Roofs Custom Rafter Function provides Common Rafters, Regular and Irregular Hips, Valleys and Jacks; instant Cutting Angles (Cheek, Level and Plumb) Jack Rafter results for Regular and Irregular Pitch Roof. Find Rake-Wall Studs with On-center spacing Compound Miter - Store Crown Angle and Enter Wall Corner Angle to calculate the Blade Tilt and Angle for Miter cuts Advanced solutions for Circles, Arches, Columns, Cones, Pillars, Windows and Post-holes Arched Rake-Walls with On-center Spacing Studs - Calculate the number of On-center Studs for an entered Length Equal Sided Polygon - Calculate Corner and Bi-sect Angles, Side Length, Perimeter and Area Board Feet Lumber estimating Additional Features User Preferences: Set custom defined options such as Fractional settings for 1/2" to 1/64" and Stair Headroom Height, Decimal Degrees and more Exponential Notation: Enter and display exponential values Backspace Key: Makes it easy to change just-entered values Constant Operator: Simplifies repetitive calculations Cost per Unit: Easily solve unit costing and pricing Accumulating Memory (M+) plus three additional Memory Storage locations "Paperless" Tape: Allows for review of last 20 entries; double-check totals Standard Calculations: Works as a math calculator with +, -, +/-, ×, ÷, %, π, 1/x, x2, and √ Automatic Shut-Off saves battery life Includes Rugged shock, dust and moisture-resistant Armadillo Gear

Rafter Length Calculator - calculator4us.com

Edge of the crown moulding against the fence of the miter box or miter saw. The nested crown moulding creates the compound cut that is same as cutting jack rafters. Cutting horizontal crown moulding nested is the same as cutting purlins or square tail fascia. The top cuts are the same, but the side cuts are not the same.All nested crown moulding cuts in the horizontal plane, with the bottom edge of the crown moulding nested against the fence are the same as purlin or square tail fascia cuts.All nested crown moulding cuts in the vertical plane, with the top edge of the crown moulding nested against the fence are the same as jack rafter cuts.Developing the actual crown moulding profiles is not that easy in Google - Trimble SketchUp. Here I've used the three different crown moulding profiles shared by Todd Murdock at JLC Finish Carpentry. I've rotated the crown moulding profiles in to the position that would have been used to draw - develop the profiles using geometry. The one constant used in developing the three different rake crown moulding profiles is the vertical projection from the wall. The vertical projection from the wall is the "run" dimension used to calculate the spring angle of the crown moulding. The "rise" dimension will be different for each of the crown moulding profiles. Here you can see the run dimension for all three crown moulding profiles is 1 11/16" and the rise dimension for all three of the profiles are different. Resulting in different spring angles for each of the crown moulding profiles.To develop the geometry for the rake crown moulding start by drawing Face A, horizontal crown, using the dimensions of the horizontal crown moulding. Then draw a line using the roof slope angle. Next develop Face B, rake crown, by drawing a line perpendicular to the roof slope line and using the same "run" dimension for the top of the crown moulding. For the third crown moulding, Face C, that is horizontal crown draw a line that is plumb or parallel to the back side of Face A. Again use the same "run" dimension for the top of the crown moulding Face C.Next, develop the geometry for the folded out roof surfaces for the crown mouldings to determine the miter angles of each piece. The yellow area in the drawing uses the "run" dimension for the plan view of the crown moulding profiles.The crown slope angle of each of the profiles is used for the roof slope angle for developing the profile rafter length for each of the roof surfaces. The red triangle in the drawing is the hip rafter and the miter angle for Face A is the same as the jack rafter side cut angle. For Face B in blue the jack rafter side cut angle is not used. You have to develop a line in the blue triangle that is equal to the same length as the hip rafter length in the red triangle. Swing

How to calculate Rafter length

If you're looking for an easy way to estimate how much building materials you'll need for a roofing project, this roof shingle calculator is just the tool you need. With its help, the question of "How many shingles do I need" will be answered in no time.Read the article next to the shingle calculator if, on top of getting the math done, you want to learn more about how to calculate roof shingles. You can also check the rafter length calculator to analyze the dimensions of your roof trusses!How to use the roof shingle calculatorAs you can see, our shingle calculator is relatively short and straightforward. Thanks to that, using it should be no problem! All you need to do is:Input the width and the length of the roof (as presented in the illustration) in the correct fields.The roof shingle calculator takes these two values and uses them to get the footprint area. The footprint is the 2D shape of a roof and is crucial for further area calculations. You will find the value below the roof length and width boxes.Choose the roof pitch. Enter this value in the x:12 format. If you know the roof pitch as an angle or a percentage, you can check the roof shingle calculator's corresponding box to enter themThe calculator gives you the value of the roof pitch multiplier for each of the pitches. As you can see, you cannot edit it — we included this field for information purposes only. The multiplier is a crucial part of the roof area calculation, allowing you to consider a roof's slope. If you want to learn more about it, visit our roof pitch calculator.At the bottom of the "Roof dimensions" section, you will see the roof area and roof area in squares. You can find more information in the text if you're wondering about squares in this context.You will see the results at the very bottom of this roofing materials calculator! You will find the number of individual shingles and the number of bundles. You are most likely interested in the latter, as that's how shingles are sold.You can change the default one bundle roof coverage depending on the type of bundles you're buying. A bundle typically covers 33.3 square feet, but this is not always the case.You can also adjust the default bundle size if the bundles you're buying contain a non-standard quantity. This, however,. Online rafter length calculation. Use this simple education rafter length calculator to calculate rafter length. Enter the rafter run (ft) and the angle of the rafter (degrees) into the Rafter Length Calculator. The calculator will evaluate the Rafter Length.

Calculate Rafter Length - sourcetable.com

This tool will calculate the slope of your roof to help you with design and construction planning.How to Use the Pitch of a Roof CalculatorTo use this calculator, input the dimensions and selections for your roofing project:Run Length: Enter the length of the run, which is the horizontal distance covered by the roof from the edge to the highest point.Rise Height: Enter the vertical height of the roof from the base to the apex.Roofing Material: Select the type of material you are planning to use. This is important as different materials can have different coverage areas due to their weight and handling specifics.Rafter Spacing: Enter the spacing between rafters in inches which determines the load and distribution across the roof.Explanation of ResultsThis calculator provides the following results:Roof Pitch: The slope of the roof in inches per foot.Rafter Length: The length of each rafter required, based on the rise and run inputs.Total Roof Area: The total surface area of the roof that needs to be covered.Estimated Material Area: The adjusted coverage required based on the selected roofing material.LimitationsPlease note that this calculator provides estimates only. Other factors such as overhangs, waste, and local building codes can affect material requirements. It is advisable to consult with a roofing professional for a comprehensive assessment before proceeding with your project.Use Cases for This CalculatorDetermine Roofing MaterialsWhen planning a roof replacement or new construction, knowing the pitch is essential for selecting the right roofing materials. A roof calculator allows you to accurately determine the angle of your roof, which directly influences material choices like shingles, tiles, or metal roofing.By accurately calculating the pitch, you can ensure that your selected materials will perform optimally under local weather conditions. This helps in choosing materials that enhance aesthetic appeal while offering durability and safety.Estimate Roof Water DrainageA roof’s pitch plays a crucial role in water drainage and runoff. Using a roof calculator, you can evaluate how steeply your roof will direct rainwater, preventing potential leaks and water damage.This information is vital to ensure that gutters are adequately sized and positioned to handle runoff efficiently. Proper drainage can save you from expensive repairs and prolong the lifespan of your roofing system.Cost Estimation for Roofing ProjectsCalculating roof pitch can significantly affect your budget estimations for roofing projects. The calculator helps you determine the surface area of your roof, which in turn informs the quantity of materials needed, allowing for more precise cost calculations.This enables you to create a realistic budget and anticipate potential overages in your roofing project, helping you avoid financial surprises. Knowing the pitch also aids in comparing quotes from contractors with a clear set of requirements.Assess Roof Accessibility for MaintenanceYour roof’s pitch can impact how easily you

Rafter Length Calculator - Inch Calculator

FREE Try Before You Buy trial, your Google account is not charged by Google during the free trial.Enhance efficiency and minimize errors in your construction projects with the acclaimed Construction Master 5, a distinguished feet-inch-fraction builder's calculator app. Esteemed for over three decades, this award-winning innovation has been the backbone of the construction industry across North America, earning the trust of professionals for its unparalleled accuracy and reliability. The Construction Master 5 is a solution designed to cater to the dimensional needs of Builders, Contractors, Designers, Fabricators, Framers, Carpenters, varied Tradesmen, and Advanced Do-It-Yourselfers.COMPREHENSIVE PROJECT SOLUTION• Tailored for a wide range of construction professionals and serious DIY enthusiasts.• Enhances speed and precision in projects involving intricate measurements.• Serves multiple functions, making it more than just a basic calculator.• Ideal for tasks requiring detailed dimensional analysis. • Aims to boost overall productivity and efficiency in construction projects.ADVANCED MOBILE FUNCTIONALITY• Available as a user-friendly app for phones and tablets.• Mirrors the functionality of the renowned handheld Construction Master 5 calculator.• Equipped with exclusive features optimized for mobile use.• Includes a comprehensive User’s Guide for ease of use.• Features a unique 'press and hold' help function for each calculator feature.ROBUST BUILT-IN SOLUTIONS• Offers powerful solutions for layouts, plans, bids, and estimates.• Capable of working and converting between all building dimensional formats.• Includes built-in right-angle functions for complex geometric calculations.• Provides extensive options for dimensional math and conversions.• Facilitates complete right angle/rafter calculations and more.ENHANCED APP FEATURES• Entry-editing Backspace Key for simple and intuitive corrections.• Context-sensitive help, including text, diagrams, and tutorial videos.• Ability to save or email calculations and outputs for collaborative work.• Special functions like Board Feet, Cost per Unit, and shareable Advanced Paperless Tape.• User-definable preferences and memory function to personalize the experience.PRECISON AND RELIABILITY• Developed using the robust core engine from Calculated Industries.• Ensures consistent reliability and precision in calculations.• Designed to handle complex construction-math effortlessly.• Perfect for accurate measurements in diverse construction scenarios.• A trusted tool in the field, office, or construction site.SUBSCRIPTION INFORMATIONThe first 7 days are free. Subscriptions offered will automatically renew at the end of the chosen period. Payment will be charged to your Apple account upon purchase confirmation. The subscription will automatically renew unless auto-renew is turned off or the subscription is canceled in settings at least one day (24 hours) before the subscription period ends. You can manage your subscription and turn off auto-renewal in your Apple account Settings > Subscriptions. TRADEMARKSCONSTRUCTION MASTER is a common law trademark owned by Calculated Industries. Calculated Industries’ U.S. Trademark Registration Nos. 2138685 and 1569347 have expired. Calculated Industries owns U.S. Trademark Serial No. 97752159 for CONSTRUCTION MASTER.Copyright 2024Whether you're a seasoned builder or a dedicated DIYer, the. Online rafter length calculation. Use this simple education rafter length calculator to calculate rafter length. Enter the rafter run (ft) and the angle of the rafter (degrees) into the Rafter Length Calculator. The calculator will evaluate the Rafter Length.

Rafter Length Calculator - Calculator Wow

Double or purlin roofs, generally purlins are appearance under the rafters in which each rafter is thus supported at three points at the bottom on wall through the wall plate, at the top by the ridge beam and at the centre by a purlin.In this type of pitch roof, especially effluent span of the rafter is nearly halved due to fact that this is becomes much lighter than it would be ,if spanked the whole length from eaves to the ridge, it is also sometimes presented to as the rafter and purlin roof, this type of pitched roof is effectively used and economically adopted upto a span of 4.80 metres.Trussed roofsTrussed roofs is the type of pitched roof which is consist the framed structure when the span of structure exceeds the 4.80 metres and there are no inside supporting walls or partitions for the purlins.In the designed of trussed roofs, the roof adopted the three members effectively rafters to supporting the roofing materials, purlins to used for intermediate support and trusses to used for support to the ends of purlins.The trussed roof provide the space according to the load on the roof, position of cross walls, materials of the truss and span, generally the spacing is provide for upto 3 metres in wooden trusses, it is effectively carry the ridge section and purlin on which the common rafters rest.Trussed roofs are effectively used in some of th usual forms, these are follows-1. King post truss2. Queen post truss3. Mansard truss4. Truncated truss5. Bel fast trust6. Steel trusses7. Composite trusses.King post trussKing post truss is the type of truss roof the central post is called as a King post in which a support for the tie beam with associated inclined members called as the struts, that is prevent the principal rafters from bending in the middle, it is also effectively adopted for King post truss span varying from 5 to 8 metres. In the king post truss span,generally spacing limited to 3 metres centre to centre.King post trussWhat is a King post truss?Regarding this, “what is a King post truss?”, King post truss is designed with the members of lower tie beam, two inclined principal rafters, two struts and a King post which is effectively used the purlins support the closely spaced rafters, rafters support the roofcovering construction and tie beam mostly prevents the wall from spreading out due to thrust.Queen