- Area in brood box - 14,194 sq cms (1.42 sq metres)
- Frame types - DN4 or DN5 and SN4 or SN5
- Frames size top bar - 432mm * 22mm
- Frames size bottom bar - 356mm
- Frames size deep side bar - 216mm *35mm
- Frames size shallow side bar - 140mm * 35mm
- Frames in brood box - 11 and a dummy board.
- Frames in super - 9 or 10 frames on castellated spacers.
- Frames in super - 8 frames with wide ends.
There is also a "Deep National" which has a bigger brood box.
- Bigger brood box overcomes problems of National brood space.
- Also known as a "14 by 12" "B.S.Deep"
- Sizes of the super are the same as the National.
- The sizes for the brood box are:
- External dimensions - 460mm by 460mm
- Brood box height - 315mm
- Weight of full super - 11.4kg
- Bee space - Bottom
- Number of cells in brood box - 93,500
- Area in brood box - 20,719 sq cms (2.07 sq metres)
- Frame types - 14*12 and SN4 or SN5
- Frames size top bar - 432mm * 22mm
- Frames size bottom bar - 356mm
- Frames size deep side bar - 305mm *35mm
- Frames in brood box - 11 and a dummy board.