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  1. #1
    Join Date
    Apr 2013
    Location
    watauga, tx
    Posts
    30

    Default Top bar width vs depth

    Hello

    I've been toying with designing a tb hive and would like comments or input on the width to size dimensions.
    I am currently thinking of a 24" bar and 8" of depth so after removing the overhang the interior space
    is 22 /14" wide x 8" deep, I live in North Texas so my thinking is a longer attachment to avoid summer heat induced comb collapse.

    Regards, Robert

    HIVE_MK2_revd.jpg

  2. #2
    Join Date
    Aug 2002
    Location
    Nehawka, Nebraska USA
    Posts
    46,742

    Default Re: Top bar width vs depth

    >I am currently thinking of a 24" bar and 8" of depth so after removing the overhang the interior space
    is 22 /14" wide x 8" deep

    Depth is fine. The deeper it is the more weight is being supported by the attachment at the top.

    The length is longer than I would go. They tend to want to curve the ends of the comb and the longer it is the more they want to curve it. Mine is 15" wide. I wouldn't go beyond 19" max.

    I would make it at least 48" long.
    Last edited by Michael Bush; 02-24-2014 at 02:31 PM. Reason: typo
    Michael Bush bushfarms.com/bees.htm "Everything works if you let it." ThePracticalBeekeeper.com 40y 200h 37yTF

  3. #3
    Join Date
    Apr 2013
    Location
    watauga, tx
    Posts
    30

    Default Re: Top bar width vs depth

    Thanks Michael , Here is quick drawing of one 19" wide inside span.Hive-v2.jpg

  4. #4
    Join Date
    Aug 2002
    Location
    Nehawka, Nebraska USA
    Posts
    46,742

    Default Re: Top bar width vs depth

    My plan is much simpler:
    http://www.bushfarms.com/beestopbarhives.htm

    I also prefer the entrance at the top to let out the moisture and at the end so the brood nest tends to start the winter at the end, and the simplest way to do that is to have the entrace be the gap at the first bar. Your design would block that. Mine requires no angled cuts and no ripping of any lumber and it works fine... If you want 19" then just use a one by ten in place of the one by six and cut the ends 19".
    Michael Bush bushfarms.com/bees.htm "Everything works if you let it." ThePracticalBeekeeper.com 40y 200h 37yTF

  5. #5
    Join Date
    Jul 2013
    Location
    Louisville, KY
    Posts
    1,631

    Default Re: Top bar width vs depth

    Quote Originally Posted by typhoontx View Post
    Thanks Michael , Here is quick drawing of one 19" wide inside span.Hive-v2.jpg
    Is the program you used to create 3d free?

  6. #6
    Join Date
    Apr 2013
    Location
    watauga, tx
    Posts
    30

    Default Re: Top bar width vs depth

    Yes it is I used a program called sketchup they have a free version ( used to make the drawing I did) and a full function version I beleive

  7. #7
    Join Date
    Feb 2005
    Location
    Tucson, Arizona, USA
    Posts
    5,408

    Default Re: Top bar width vs depth

    I wholeheartedly endorse the free version of SketchUp,

    I've been using it for several years now, and have shared many of my plans at the SketchUp warehouse. With the free software, you can download the plans shared at the warehouse, modify them to suit yourself, or to view all the plan details. Or even use it to create your own custom plans.

    Here's a pic of one of my plans, and it's a link to my beekeeping model collection -->
    48 years - 50 hives - TF
    Joseph Clemens -- Website Under Constructioni

  8. #8
    Join Date
    Oct 2010
    Location
    Baker Oregon
    Posts
    2,490

    Default Re: Top bar width vs depth

    I built mine so that it would accept medium frames, which makes it easy to add brood or honey from my other hives.
    Dan Hayden 4 Years. 12 hives. Tx Free. USDA Zone 5b.

  9. #9
    Join Date
    Apr 2013
    Location
    watauga, tx
    Posts
    30

    Default Re: Top bar width vs depth

    Thanks Mike,
    1 more question:
    How big of a gap do you use between the end board and the first top bar

  10. #10
    Join Date
    Aug 2002
    Location
    Nehawka, Nebraska USA
    Posts
    46,742

    Default Re: Top bar width vs depth

    >How big of a gap do you use between the end board and the first top bar

    Whatever is left over. You start at the back with the bars tight together and there is always what is left over. If that was less than 1/2" I would take the first bar out as a humid day will make the bars swell and it may close the entrance...
    Michael Bush bushfarms.com/bees.htm "Everything works if you let it." ThePracticalBeekeeper.com 40y 200h 37yTF

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