I intend to convert my one lang (3 mediums) to a long hive, and later in the spring add a KTBH or two.

My current questions are how and when? Should I wait until the weather is warmer ? It has been warm up until now, this is the 1st week we have had with every days highs predicted to be lowere than average..

Do I place the 3 box's end to end on a sheet of plywood cut to fit ? Are migratory covers recommended ? Do I cut an entrance or shim up the cover to serve as an entrance ? Do I take my current frames from the LANG and replace every other one with a top bar? Can I shake / brush the bees from the LANG to the long ?

I know this should be simple...but I need your advice .

Thanks for responding,