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  1. #1
    Join Date
    Aug 2009
    Location
    Anchorage, Alaska
    Posts
    1

    Bottom board - Which side up?

    I recently built a new bottom board from the 10 frame Langstroth hive plans on Beesource. The drawing shows that the 3/8" opening is on top. Is this the entrance side or do they just have the bottom board upsidedown in the plans?My old bottom board used a 3/4" entrance reducer. There isn't much room for an entrance reducer with just a 3/8" opening.

    I went ahead and installed it as shown in the plans and the bees don't seem to have a problem with it. Should I flip the bottom board over?

  2. #2
    Join Date
    May 2009
    Location
    Covington, Ga, USA
    Posts
    1,549

    Default Re: Bottom board - Which side up?

    I built mine the same way, and the bees dont mind it at all. A smaller gap also helps them defend it a little better as well I think. I built my reducer to fit the new bottom board...I alsways wondered where 3/4 inch came from. That seems big to me, but who am I?
    "You laugh at me because I am different, but I laugh at you because you are all the same."

  3. #3
    Join Date
    Dec 2008
    Location
    syracuse n.y.
    Posts
    1,895

    Default Re: Bottom board - Which side up?

    my buddy uses all 3/8 " openings and he doesn't use any mouse guards, says they can't get it with this size openeing. He doesn't get very many mice in so I think he is correct. I put a few on my hives as the old ones rot out, but my bees seem to hit there heads while going in, i keep telling him my bees are bigger than his bees.

    mike

  4. #4
    Join Date
    Dec 1999
    Location
    DuPage County, Illinois USA
    Posts
    9,419

    Default Re: Bottom board - Which side up?

    The bottom board has two positions. A 3/4" side and a 3/8" side. Use either one that fits your style. I use the 3/8" opening year round. I don't reduce the opening at anytime. 3/4" opening would require one to reduce it for winter around here, as mice can easily get into a hive through a 3/4" opening.
    Regards, Barry

  5. #5
    Join Date
    Apr 2009
    Location
    Issaquah,WA,USA
    Posts
    2,379

    Default Re: Bottom board - Which side up?

    Mine are all 3/8 openings. Did not know about the 3/4 in openings since the guy that built all my first hives had started with 3/8. Don't seem to have any problems with 3/8th's.

  6. #6
    Join Date
    Feb 2009
    Location
    Knox County, Ohio
    Posts
    2,694

    Default Re: Bottom board - Which side up?

    It is known as a reversible bottom board. You are 'supposed' to use the wide opening during the summer, and flip the bottom board over and use the 3/8 opening during the winter.

    I don't know any beekeepers who actually flip their bottom boards in spring and fall. Some use the small opening and some use the wide, but all the beekeepers I know leave their bottom boards the same year round. Laying an entrance reducer across the wide opening is easier than flipping the bottom board over.

  7. #7
    Join Date
    Jul 2009
    Location
    Bodfish, Ca. USA
    Posts
    14

    Default Re: Bottom board - Which side up?

    When using an entrance reducer, is the opening up or down? AND, is it used in the winter to help with warnth?
    Ms BeeHave

  8. #8
    Join Date
    Feb 2005
    Location
    Tucson, Arizona, USA
    Posts
    5,346

    Default Re: Bottom board - Which side up?

    Quote Originally Posted by BeeHave View Post
    When using an entrance reducer, is the opening up or down? AND, is it used in the winter to help with warnth?
    Ms BeeHave
    Yes - however you want to do it. I suppose that it could be used in Winter to help regulate temp.
    48 years - 50 hives - TF
    Joseph Clemens -- Website Under Constructioni

  9. #9
    Join Date
    Jul 2006
    Location
    Worcester County, Massachusetts
    Posts
    3,622

    Default Re: Bottom board - Which side up?

    i don't think anyone has this correct so far.

    the 3/8 opening is for summer. the smaller opening will prevent the bees from building comb on the bottom bars of the frames.

    the 3/4 is for winter, with the idea that you will use an entrance reducer for mice, and the larger opening allows for more dead bees to accumulate on the bottom board before they block up the entrance.

    with that said, my bottom boards have not entrances.

    deknow

  10. #10
    Join Date
    Aug 2008
    Location
    Elkton, Giles, Tennessee, USA
    Posts
    1,339

    Default Re: Bottom board - Which side up?

    Will at least one of you folks who use 3/8 all the way confirm for my education that you never see frames with comb that stops short of the bottom bar ? Exposed wire at the bottom of rippled wired foundation.

    The wild colony stops comb about 3/4 inch from the bottom of the cavity to provide access to the overhead comb.

    When I bought hives from beeks who couldn't cope with mites, there were lots of frames with exposed wire at the bottom. Since I didn't see that with my frames drawn with larger space, assumed that those frames were drawn with 3/8 spacing. Educate me, Please.

    Walt W.

  11. #11
    Join Date
    Jul 2008
    Location
    Damascus, Maryland
    Posts
    376

    Default Re: Bottom board - Which side up?

    Quote Originally Posted by wildbranch2007 View Post
    my buddy uses all 3/8 " openings and he doesn't use any mouse guards, says they can't get it with this size openeing. He doesn't get very many mice in so I think he is correct. I put a few on my hives as the old ones rot out, but my bees seem to hit there heads while going in, i keep telling him my bees are bigger than his bees.

    mike
    your bee's are not biger, they are head bangers:
    "Life without God is like an unsharpened pencil - it has no point."

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