Self spacing brood box frames suitable for British National,WBC and Smith hives if the top bar lugs are shortened.
These frames are used for deeper brood chambers to give the bees more brood space.
These frames can be used in our 14 x 12 jumbo brood boxes, alternatively you can stack a British National brood box and super on top of each other to create the right depth.
They are self spacing and mostly used in British National, WBC and similarly sized beehives.
These are grade A frames