These are flat packed 14 x 12 BRITISH NATIONAL frames and require assembly. They are 'Self spacing' and mostly used in British National Beehives.
They are used for deeper brood chambers than the more common DN4 / DN1 size to give the bees more brood space.
Special sized brood boxes are produced for this, alternatively you can stack a British National brood box and Super on top of each other to create the right depth.
They are grade A quality NOT seconds.
- Made of quality pine wood.
- Best value
- Complete with frame / gimp pins