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The guide explains how to establish wall layout dimensions, then draw 45-degree lines from roof points to form hips and valleys, including how to calculate key intersection points using wall width/half-width offsets in millimeters. It then shows adding ridge lines, trimming previously unknown segments, completing the final hip, and confirming roof-plane fall direction. Suitable for following each example without relying on repeated information.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/hip-and-valley-roof-2d-plan-view-drawing-guide/663043/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/hip-and-valley-roof-2d-plan-view-drawing-guide/663043.png","ImageObject",300,407,{"name":92,"@type":93},"Mary Man","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29","2026-10-28",true,{"@type":102,"interactionType":103,"userInteractionCount":8},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the first step to draw a hip and valley roof in 2D plan view?","Question",{"text":112,"@type":113},"Start by drawing a floor plan layout of the house and note the different wall widths in mm. Then draw 45-degree lines from all the roof points.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How do you distinguish valleys and hips when drawing the 45-degree construction lines?",{"text":117,"@type":113},"The internal roof lines are called valleys, while the external roof lines are the hips. Join the lines at their intersections to form the hip geometry.",{"name":119,"@type":110,"acceptedAnswer":120},"How do you determine ridge lines and finish the roof?",{"text":121,"@type":113},"Add the ridge lines where the established hips meet, then trim the unknown valley and hip lengths from the earlier step. Finally, draw the last hip to complete the roof and verify the fall direction of each roof plane.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},663043,1793224786,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":8,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":129,"read_time":144},7421720224475,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","HIP AND VALLEY ROOF  \nThis is a guide on how to draw a hip and valley roof in 2D plan view. Roofs can become quite complex but hopefully the different ways I show you how to approach the roof design may be helpful.  \nAll measurements shown are in mm (millimeters)  \nI recommend reading each example to ensure you have read all the information offered as the same information is not repeated in each example.  \n\n| | | | |\n| --- | --- | --- | --- |\n\n\n| Example 1 |  |\n| --- | --- |\n| \u003Cbr>Plan View Fig.001 | As you can see, this is a floor plan layout of a house. Note the 2\u003Cbr>different widths of the walls.\u003Cbr>One wall is 4000mm (4 metres) and the other 3000mm (3 metres) . These can be any value but I have made them different sizes for this exercise to work as intended. |\n\n\n| \u003Cbr>Plan View Fig.002 | To start drawing in the hipped roof, draw lines at 45 degree angles from all the points on the roof as shown in blue.\u003Cbr>The internal roof lines are called valleys and the external roof lines are the hips (as shown) .\u003Cbr>As you can see, the 2 lines to the top left of the image are just drawn in approximately. We will determine their length in the next step.\u003Cbr>All the other lines making up the hips can be calculated by joining them where they intersect.\u003Cbr>The exact point can be calculated by drawing a point half the width of the wall, across, and up.\u003Cbr>In this example, the wall of 3000mm (3 meters) would have a point 1500mm (1.5 meters) across from the edge of the external wall, and up 1500mm (from that point) . |\n| --- | --- |\n\n\n| \u003Cbr>Plan View Fig.003 | In this step, we add in the ridge lines starting from where the hips that are established join.\u003Cbr>We can now trim off the valley line and hip line lengths that were unknown from the previous step. |\n| --- | --- |\n\n\n| \u003Cbr>Plan View Fig.004 | Now we can draw in the last hip to complete the roof. |\n| --- | --- |\n\n\n| \u003Cbr>Plan View Fig.005 | This is the finished roof showing the fall direction of each of the roof planes. |\n| --- | --- |\n\n\n| Example 2 |  |\n| --- | --- |\n| | As you can see, this is a floor plan layout of a house based on the previous example layout, but with an extra piece added. |\n\n\n| | To start drawing in the hipped roof, draw lines at 45 degree angles from all the points on the roof as shown in blue. |\n| --- | --- |\n\n\n| | Now we can draw in the ridge lines as shown. |\n| --- | --- |\n\n\n| | In this step, I have drawn in some dashed lines.\u003Cbr>The 45 degree angle lines represent the hips.\u003Cbr>The other 2 lines (the horizontal and vertical line) are there to make an imaginary box. These lines help to show you where to start the hips from.\u003Cbr>This is a good method for working out roof designs. I always try and work out pieces of the roof into rectangles or squares to aid in working out roof line placement. |\n| --- | --- |","cbCaip8g6AlnnZV8","https://ap.wps.com/l/cbCaip8g6AlnnZV8","pdf",639572,28,"English","# Overview\n# Example 1: Base layout and construction\n## Establishing valleys and hips with 45-degree lines\n## Adding ridge lines and trimming unknown lengths\n## Completing the final hip and checking fall direction\n# Example 2: Extended layout method","[{\"question\":\"What is the first step to draw a hip and valley roof in 2D plan view?\",\"answer\":\"Start by drawing a floor plan layout of the house and note the different wall widths in mm. Then draw 45-degree lines from all the roof points.\"},{\"question\":\"How do you distinguish valleys and hips when drawing the 45-degree construction lines?\",\"answer\":\"The internal roof lines are called valleys, while the external roof lines are the hips. Join the lines at their intersections to form the hip geometry.\"},{\"question\":\"How do you determine ridge lines and finish the roof?\",\"answer\":\"Add the ridge lines where the established hips meet, then trim the unknown valley and hip lengths from the earlier step. Finally, draw the last hip to complete the roof and verify the fall direction of each roof plane.\"}]","Hip and Valley Roof - 2D Plan View - Drawing Guide | PDF",71]