The Grain should run along the longest dimension of
Entrance Blocks for National Floors
Any type of wood will suffice for this component, but
hardwoods are more durable and may warp less.
The items as drawn left are made more durable if they are
and when dry have
rubbed into all surfaces, this will ensure a lifetime of use.
Special block for use with "Sundown" floor.
This entrance block
can be fitted in different ways to block the entrance, allow a 9 mm
entrance or can be removed completely to provide an 18 mm entrance.
Owing to it's thin cross section this sort of block is best made from
hardwood to reduce distortion due to warping.
During the 2000 season robbing seemed more intense, and
entrance notches of 9 mm x 9 mm had to be used by several beekeepers
local to me. (I used some with a single 10 mm diameter drilled hole.)
Revised... 04 October 2001
Revised... 06 March 2002