FHB Logo Facebook LinkedIn Email Pinterest Twitter X Instagram Tiktok YouTube Plus Icon Close Icon Navigation Search Icon Navigation Search Icon Arrow Down Icon Video Guide Icon Article Guide Icon Modal Close Icon Guide Search Icon Skip to content
Subscribe
Log In
  • How-To
  • Design
  • Tools & Materials
  • Restoration
  • Videos
  • Blogs
  • Forum
  • Magazine
  • Members
  • FHB House
  • Podcast
Log In

Discussion Forum

Discussion Forum

How do you miter acute angles?

| Posted in General Discussion on March 2, 2000 04:29am

*
Can anyone tell me where to find the article that contained the formulas for cutting different angle crown molding flat on a compound miter saw. I know I saw this but cannot relocate it for the life of me. I have tried using the indexes but no luck. HELP!!

Reply
  • X
  • facebook
  • linkedin
  • pinterest
  • email
  • add to favorites Log in or Sign up to save your favorite articles

Replies

  1. Tim_McGinley | Mar 02, 2000 04:58am | #13

    *
    Walter,
    The article you are looking for is by Stephen Nuding and it is called Cutting Crown Molding. It appeared in the June 1991 edition (68:79-80). While I probably have that one around somewhere, I got a great book of collections articles from FH called Finish Carpentry, The Best of Fine Homebuilding. It was $15.00 and is a great collection of about 25 articles, this one is in it. I have had to refer to this one a few times myself.
    If you cannot find the article or book, let me know...I can send you the formulas from the article.
    Tim

  2. Guest_ | Mar 02, 2000 06:36pm | #14

    *
    Click here for tables

    Charlie R.

    1. Guest_ | Mar 03, 2000 01:55am | #15

      *This may help.

  3. brent_collins | Mar 08, 2000 05:25am | #16

    *
    I have been hanging a lot of doors lately. Any tricks on setting prehung doors? Thanks

  4. Guest_ | Mar 10, 2000 04:19pm | #17

    *
    The other day I was slavin' away in the shop and I recognized a technique for mitering acute angles that I was astonished how simple and accurate it is.

    OK, so if you are makin' a 90 degree joint, you put a 45 on each piece cause 45 + 45 = 90 right? But what do you do when you need say 140 degrees, like on those windows that follow the roofline?

    I can't believe I haven't seen this, but I mostly work alone. If you haven't seen this either, you'll like it.

    1. Guest_ | Feb 04, 2000 11:57am | #1

      *Flat stock window casing?Whenever I have any unusual angles that I want to miter, one method I've used is to simply overlap the two pieces of flat trim, one on top of the other. I then mark on each board where the inside and outside edges of the two pieces overlap/intersect. Scribe a line connecting the tic marks, fire up the chainsaw, cut the pieces, and presto!

      1. Guest_ | Feb 04, 2000 12:32pm | #2

        *I haven't seen it either....what the heck are ya talking about? Am I missing part of the post?

        1. Guest_ | Feb 04, 2000 03:21pm | #3

          *Jim gets Adrian Wilson down from Canada to cut 'em for him.

          1. Guest_ | Feb 04, 2000 04:55pm | #4

            *What I normally do is cut a 45 degree triangle out of a 1 by 6.I clamp this block down with the miter box clamp and use the hypotenuse for the fence.For the 140 degree angle put casing against 1 by 6 fence and move saw to 25 degrees(25+45=70 times 2 pcs.=140).Charlie R.

          2. Guest_ | Feb 04, 2000 06:41pm | #5

            *You the man Charlie. Isn't that sweet? I couldn't believe how easy and accurate it was, after all these years of markin' the angle and eyeballin' the cut and using some kind of temporary block so the saw doesn't pull the piece (and my hand) into it. Anyone got any more of those simple techniques?

          3. Guest_ | Feb 04, 2000 06:47pm | #6

            *How did the swap meet go (honey)?

          4. Guest_ | Feb 05, 2000 02:02am | #7

            *I just saw a cute angel walkin' by!

          5. Guest_ | Feb 06, 2000 04:47am | #8

            *I'll take it one step further: Clamp the scrap 1x6 or whatever you are using to the miter box, and i then cut your 45 in it!

          6. Guest_ | Feb 07, 2000 10:49am | #9

            *Getting back to the step of determining wha your angle is I go bact to my geometry teachings.I use a compass to bisect the angle hen set my bevel guage at the angle right off the wall. Then I use the auxilary fence. I was taught by a carpenter who had seveal made up and stored in his shop. He had them in 15 degree incriments.This man also had guage blocks milled out of aluminum for different angles to help in setting up tool blades.

          7. Guest_ | Feb 12, 2000 07:10am | #10

            *I think Charlies got the right idea, but I usually use a 30 degree block. You can use this trick with a miter saw , just set your miter and add 30 degrees to get your desired angle. To find your angle, the best method is to draw the two parallel outlines of each piece on the wall, after you get your intersection points, you can hold your trim on the wall and mark your two points. Connect these points with a staitedge and presto! You have your cutline.

          8. Guest_ | Feb 12, 2000 12:06pm | #11

            *To determine the angle I use a tool I found at a Math conference a few years ago. It has two 12 blades (kind like the old plastic rulers) that are joined at one end so they sit one on top of the other, as if you set them down on the table and their edges touched. There is a screw knob you can tighten to lock the blades at any angle or loosen to allow opening and closing. In the corner where they meet there is a scale that tells you the angle. Beauty eh?

          9. Walter_Weaver | Mar 02, 2000 04:29am | #12

            *Can anyone tell me where to find the article that contained the formulas for cutting different angle crown molding flat on a compound miter saw. I know I saw this but cannot relocate it for the life of me. I have tried using the indexes but no luck. HELP!!

  5. Guest_ | Mar 10, 2000 04:19pm | #18

    *
    I know this is kinda' cheatin' but Bosch makes a slide saw that mitres 60 deg. on one side and 52 deg. on the other. kinda kool, almost allows a neat 360 cut with enough blocks!

Log in or create an account to post a comment.

Sign up Log in

Become a member and get full access to FineHomebuilding.com

Video Shorts

Categories

  • Business
  • Code Questions
  • Construction Techniques
  • Energy, Heating & Insulation
  • General Discussion
  • Help/Work Wanted
  • Photo Gallery
  • Reader Classified
  • Tools for Home Building

Discussion Forum

Recent Posts and Replies

  • |
  • |
  • |
  • |
  • |
  • |
View More Create Post

Up Next

Video Shorts

Featured Story

An Easier Method for Mitered Head Casings

Making mitered head casings is a breeze with this simple system.

Featured Video

How to Install Exterior Window Trim

Learn how to measure, cut, and build window casing made of cellular PVC, solid wood, poly-ash boards, or any common molding material. Plus, get tips for a clean and solid installation.

Related Stories

  • Podcast Episode 689: Basement Garages, Compact ERVs, and Safer Paint Stripper
  • FHB Podcast Segment: Are Single-Room ERVs the Answer?
  • Fire-Resistant Landscaping and Home Design Details
  • A New Approach to Foundations

Highlights

Fine Homebuilding All Access
Fine Homebuilding Podcast
Tool Tech
Plus, get an extra 20% off with code GIFT20

"I have learned so much thanks to the searchable articles on the FHB website. I can confidently say that I expect to be a life-long subscriber." - M.K.

Get home building tips, offers, and expert advice in your inbox

Signing you up...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
See all newsletters
See all newsletters

Fine Homebuilding Magazine

  • Issue 332 - July 2025
    • Custom Built-ins With Job-Site Tools
    • Fight House Fires Through Design
    • Making the Move to Multifamily
  • Issue 331 - June 2025
    • A More Resilient Roof
    • Tool Test: You Need a Drywall Sander
    • Ducted vs. Ductless Heat Pumps
  • Issue 330 - April/May 2025
    • Deck Details for Durability
    • FAQs on HPWHs
    • 10 Tips for a Long-Lasting Paint Job
  • Issue 329 - Feb/Mar 2025
    • Smart Foundation for a Small Addition
    • A Kominka Comes West
    • Making Small Kitchens Work
  • Issue 328 - Dec/Jan 2024
    • How a Pro Replaces Columns
    • Passive House 3.0
    • Tool Test: Compact Line Lasers

Fine Home Building

Newsletter Sign-up

  • Fine Homebuilding

    Home building tips, offers, and expert advice in your inbox.

  • Green Building Advisor

    Building science and energy efficiency advice, plus special offers, in your inbox.

  • Old House Journal

    Repair, renovation, and restoration tips, plus special offers, in your inbox.

Signing you up...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
See all newsletters

Follow

  • Fine Homebuilding

    Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.

    Start Free Trial Now
    • Facebook
    • Instagram
    • X
    • LinkedIn
  • GBA Prime

    Get instant access to the latest developments in green building, research, and reports from the field.

    Start Free Trial Now
    • Facebook
    • YouTube
  • Old House Journal

    Learn how to restore, repair, update, and decorate your home.

    Subscribe Now
    • Facebook
    • Instagram
    • X
  • Fine Homebuilding

    Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.

    Start Free Trial Now
    • Facebook
    • Instagram
    • X
    • LinkedIn
  • GBA Prime

    Get instant access to the latest developments in green building, research, and reports from the field.

    Start Free Trial Now
    • Facebook
    • YouTube
  • Old House Journal

    Learn how to restore, repair, update, and decorate your home.

    Subscribe Now
    • Facebook
    • Instagram
    • X

Membership & Magazine

  • Online Archive
  • Start Free Trial
  • Magazine Subscription
  • Magazine Renewal
  • Gift a Subscription
  • Customer Support
  • Privacy Preferences
  • About
  • Contact
  • Advertise
  • Careers
  • Terms of Use
  • Site Map
  • Do not sell or share my information
  • Privacy Policy
  • Accessibility
  • California Privacy Rights

© 2025 Active Interest Media. All rights reserved.

Fine Homebuilding receives a commission for items purchased through links on this site, including Amazon Associates and other affiliate advertising programs.

  • Home Group
  • Antique Trader
  • Arts & Crafts Homes
  • Bank Note Reporter
  • Cabin Life
  • Cuisine at Home
  • Fine Gardening
  • Fine Woodworking
  • Green Building Advisor
  • Garden Gate
  • Horticulture
  • Keep Craft Alive
  • Log Home Living
  • Military Trader/Vehicles
  • Numismatic News
  • Numismaster
  • Old Cars Weekly
  • Old House Journal
  • Period Homes
  • Popular Woodworking
  • Script
  • ShopNotes
  • Sports Collectors Digest
  • Threads
  • Timber Home Living
  • Traditional Building
  • Woodsmith
  • World Coin News
  • Writer's Digest
Active Interest Media logo
X
X
This is a dialog window which overlays the main content of the page. The modal window is a 'site map' of the most critical areas of the site. Pressing the Escape (ESC) button will close the modal and bring you back to where you were on the page.

Main Menu

  • How-To
  • Design
  • Tools & Materials
  • Video
  • Blogs
  • Forum
  • Project Guides
  • Reader Projects
  • Magazine
  • Members
  • FHB House

Podcasts

  • FHB Podcast
  • ProTalk

Webinars

  • Upcoming and On-Demand

Podcasts

  • FHB Podcast
  • ProTalk

Webinars

  • Upcoming and On-Demand

Popular Topics

  • Kitchens
  • Business
  • Bedrooms
  • Roofs
  • Architecture and Design
  • Green Building
  • Decks
  • Framing
  • Safety
  • Remodeling
  • Bathrooms
  • Windows
  • Tilework
  • Ceilings
  • HVAC

Magazine

  • Current Issue
  • Past Issues
  • Magazine Index
  • Subscribe
  • Online Archive
  • Author Guidelines

All Access

  • Member Home
  • Start Free Trial
  • Gift Membership

Online Learning

  • Courses
  • Project Guides
  • Reader Projects
  • Podcast

More

  • FHB Ambassadors
  • FHB House
  • Customer Support

Account

  • Log In
  • Join

Newsletter

Get home building tips, offers, and expert advice in your inbox

Signing you up...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
See all newsletters
See all newsletters

Follow

  • X
  • YouTube
  • instagram
  • facebook
  • pinterest
  • Tiktok

Join All Access

Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features.

Start Your Free Trial

Subscribe

FHB Magazine

Start your subscription today and save up to 70%

Subscribe

Enjoy unlimited access to Fine Homebuilding. Join Now

Already a member? Log in

We hope you’ve enjoyed your free articles. To keep reading, become a member today.

Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine.

Start your FREE trial

Already a member? Log in

Privacy Policy Update

We use cookies, pixels, script and other tracking technologies to analyze and improve our service, to improve and personalize content, and for advertising to you. We also share information about your use of our site with third-party social media, advertising and analytics partners. You can view our Privacy Policy here and our Terms of Use here.

Cookies

Analytics

These cookies help us track site metrics to improve our sites and provide a better user experience.

Advertising/Social Media

These cookies are used to serve advertisements aligned with your interests.

Essential

These cookies are required to provide basic functions like page navigation and access to secure areas of the website.

Delete My Data

Delete all cookies and associated data