Our SN4 national frames are used in British National and WBC shallow super boxes and come in packs of 10, assembled and pre-wired with foundation embedded. The dimensions of the frames are:
All our SN4 frames are 1st quality and contain no knots.
11 DN4 National Hoffman (self-spacing) brood box frames.
National deep wired premium foundation, pack of 11.
Frames are 1st quality and are flat packed ready for assembly.