Results 1 to 10 of 10

Thread: Building a Strongback with LVLís?

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. #1
    Join Date
    Apr 2021
    Location
    Winn, Maine
    Posts
    4

    Default Building a Strongback with LVLís?

    Has anyone used LVL beams to build a strongback? It seems to me LVLís would be better than using dimensional lumber. What do you think?

  2. #2
    Join Date
    Jun 2010
    Location
    PNW, an island west of Seattle
    Posts
    2,851

    Default Re: Building a Strongback with LVLís?

    Good idea. Especially if you have them already.

    Jeff

  3. #3

    Default Re: Building a Strongback with LVLís?

    And if you don't have them, another option would be wood I-beams / I-joists. I used them for my current strongback. They're great, and probably less expensive than LVLs.

  4. #4
    Join Date
    Apr 2021
    Location
    Winn, Maine
    Posts
    4

    Default Re: Building a Strongback with LVLís?

    I wondered about using wood I beams. I’ll have to compare prices. I’ve never built a boat before, so this will be my first. I recently bought plans for a 16’ glued plywood lapstrake boat. Here are some photos of the boat being built by Nexus Marine: http://www.nexusmarine.com/flyfisher_construction.html.

    If I don’t reply right away to other responses it’s because I’m on the east coast and It’s getting late. Much appreciate everyone’s response so far.

  5. #5
    Join Date
    Sep 2004
    Location
    Utah and SF Bay
    Posts
    2,262

    Default Re: Building a Strongback with LVLís?

    I used LVL's for my peapod strongback. Worked great. Rock solid and true. They now serve as heavy shelving racks for my lumber storage.


  6. #6
    Join Date
    Sep 2007
    Location
    Lexington, VA
    Posts
    993

    Default Re: Building a Strongback with LVLís?

    I used LVLs for the strongback to build my 25' draketail, Miss Sue. Worked just fine. There are several threads detailing the build. http://forum.woodenboat.com/showthre...ight=draketail

  7. #7
    Join Date
    Mar 2019
    Location
    Rushworth, Australia
    Posts
    777

    Default Re: Building a Strongback with LVLís?

    Here’s some pics of one I built for my 22’ lapstrake. It’s upside down in the photos

    98E3111B-FCCA-477E-B633-7E61C089A05B.jpg80985798-674F-4EBF-A25D-3938C7C4C127.jpg

  8. #8
    Join Date
    Mar 2016
    Location
    NE Mass, USA
    Posts
    17

    Default Re: Building a Strongback with LVLís?

    Another option, possibly less expensive, is what’s known as “rim board”. It’s usually OSB or LSL material made to match the sizes of engineered floor joists. ( 9.25”, 11 7/8”, 14, 16, 18, etc) its 1 1/8” and comes in long pieces. Not quite as strong, but still straight and consistent engineered lumber. If you don’t plan to reuse the strong back, it could save you some money in the set up while providing the same benefits. I used it for stair stringers in my own house with good results.

  9. #9
    Join Date
    Jan 2011
    Location
    Norwalk CT
    Posts
    1,844

    Default Re: Building a Strongback with LVLís?

    any engineered lumber will be good for a strongback and better than real wood. Always stable dimensionally true.

  10. #10
    Join Date
    Oct 2000
    Location
    Padanaram, MA USA
    Posts
    10,014

    Default Re: Building a Strongback with LVLís?

    I’ve used I-beam joists to build box beams as mold strongbacks. They’re lighter and cheaper than LVL’s and stiffer for the weight. They’ve stayed straight even after periods of outdoor storage between projects.
    Last edited by JimConlin; 04-06-2021 at 08:13 AM.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •