Front 26" x 4 1/4, bit cutout is 1 1/2" wide by 2 1/4" tall Bottom 26" x 6", bit cout is 1 1/2" wide by 1" deep 3/4" thick Heavy duty commercial grade MDF Vacume sealed Laminate (not Melamine) CNC milled You can use our benchtop aluminum core with this set up. (optional and not necessary) Fence is wide enough to accomidate small bit holders (shown but not included) If you have the desire to have a fixed fence (not split) this cut out kit is an excellent start. You can add our dust port to this fence for complete dust control. The base on the fence is nice and wide to provide stability and versatility. You can add your own custom router bit holders(like on our custom tables) or you can leave them blank. These fences are not predrilled because some people prefer to use glue for assembly and some people prefer screws, bisquits or dowels. So we leave them blank so that you can decide. The bottom plate is ready to be drilled for accepting knobs and bolts to hold onto your router track, again that is your option. Please note that our standard knob and bolt that we offer in our parts and accessories section is not long enough to clear the 3/4" thickness of the fence and go into the t-track.