Full Lock SetO Gauge Full Lock Set (Saving you 19. 75 if bought as a set!) The completed kit will accommodate two narrow boats The Full Lock (as pictured) requires a space 880 mm long by 300mm wide. The Internal Lock width 107mm Max boat length 560mm The Max internal depth of the Lock is 83mm This consists of the following sets: 2x 7 339 1x 7 340 1x 7 341 1x 7 342 1x 7 343 2x 7 344 1x 7 345 1x 7 346 Model supplied unassembled and unpainted.