5 9 16 x 1 3 8 x 3 8.
British standard bee hive frame dimensions.
Commercial hive is also known as 16 x 10 and has a larger volume.
These are the top bars for all the frames.
These are the side bars for the shallow frames.
The main walls are 19mm thick.
Cut a saw kerf groove centered along the entire length 1 8 wide.
The above are the external dimensions of the hoffman type british standard brood frame.
No part of any hive box apart from lug seating parts should be more or less than a bee space from any of its parts.
Drill two 1 8 holes 1 3 4 apart and centered along the long.
The standard brood boxes being 8 225mm tall and the shallow super 5 150mm tall.
Length of the side bar.
British standard commercial bee hive frame dimensions.
These are the external dimensions of the british standard brood frame that has the shorter 19 mm lugs.
Originally the national major frame was 16 x 10 with a 17 1 2 top bar but the top bar was reduced the to 17 3 16 and this frame design and the american style box that simmins designed to suit it became the british standard commercial hive but i do not know what date the adoption of it as a british standard occurred.
It is suited to more prolific bees and is an alternative to brood and a half or langstroth.
The main boxes are 18 460mm square in footprint.
There is also some usage of it in hive boxes that are designed on the same footprint as the langstroth hive and usually carry 13 such frames arranged across the box.
1 x 6 clear pine.
The external size is the same as the national although the frame size is different.
Bs national standard brood box with frames shown through cutaway two frames removed to show detail.