Log Loading Arch Details

November 22, 2017

I frequently get questions regarding the dimensions and construction of my loading arch.  I’ve put together this page to illustrate the details of the arch for reference.

Modifying the arch to fit your needs is pretty simple.  If you need more or less width than 62.5″, simply add/subtract your desired change to the top piece of the arch.  If you need to change the height, add or subtract your desired difference from the uprights.

The arch itself is made from 2×3″ tube with a 1/4″ wall thickness.  The gussets can be cut from a piece of 4″ wide flat bar.

Overall Dimensions

Exploded View

Gussets

Top Detail

Shackle Mount

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  • Curt jahnke says:

    Awesome videos , have u ever estimated the cost of tubeing and the extra metal in just the arch and the bolt on mout too the trailer? And guesstimateing if you’d do another arch just like this one time it would take all over to put one together? THANKS, CRAZY CURT

    • It’s been a few years but material costs were around $120. It’s a pretty quick project if you have some fabricating experience. Maybe a few hours if nothing unexpected happens. thanks!

  • Mike says:

    Thanks for posting this Matt! I enjoy watching your videos. Do you have the winch wired directly to the vehicle battery?

    • I have a separate deep cycle battery just for the winch that I bring in and put on a charger between uses.

      • Mike says:

        Thanks again! Keep up with the videos! I plan to start my trailer/log arch and saw mill sometime next year. I’ll definitely hit you up for advice and lessons learned.

        Take care,

        -Mike

  • David Henry says:

    Thanks Matt for the log loading arch drawings. Perfect.
    Could you comment on the winch set up. Power level, anchoring. Is there a video of it’s field operation?
    I’m a total Green Horn when it comes to winches. It’d be a.whole lot easier on my billfold than a Bobcat.
    Dave Henry

  • Bob French says:

    Thanks for putting this all together Matt! I am planning to build a slightly smaller one with my son and this will save us a bunch of time.

    • awesome! Thanks Bob!

  • Ross Rogalski says:

    Your comment is awaiting moderation.

    Interested in more on the log loading arch. Have watched the videos on YouTube. Is there an explanation of the Physics behind the operation of the arch? For example, by connecting the winch to the top of the arch, does the arch act as a “lever” to “lever the log onto the trailer”? It looks like the advantage is that a smaller force is applied by the winch at the top of the arch, but this force travels through a greater distance (force x distance = work). The result would then be a grater force (to lift and translate the log forward?) which acts through a shorter distance? One would then be able to establish an “equality of work” as in: Work(Top of Arch) = Work(performed on the log)?

    Some expansion on the techniques on the application of using the arch would be helpful. How far behind the trailer is the log positioned? How high should the arch be raised at the point the log lifting chain begins to lift the log? Do we have some ideas on the maximum dimensions / weight of log that this arch design has successfully loaded onto a trailer (height of trailer bed (please)?

    Like the idea of the “urban forestry”. We have under utilized wood resources. This seems wasteful. Identifying methods to utilize these resources by the “small operator” / woodworker is an excellent idea. Please keep the ideas and experiences coming.