Create the base by using (2) 1 x 4 x 37.5" pieces and (2) 1 x 4 x 24" pieces

drill pocket holes on both ends of each 1 x 4 x 24" piece to attach to the end pieces...the 24" pieces go inside the 37.5:"ones

using the (8) 1 x 3 x 21" pieces, attach two together to form a leg...do this to make four legs

drill pocket hols to attach them and also pocket holes on each end to attach to the base and the top in the next step

Same as step one, just this goes on the top of the legs you just made

Insert the top MDF or Plywood 3/4 " piece. Inset this down 3/4 of an inch to leave room for all the inserts you can make

drill pocket holes all the way around the mdf or plywood piece to attach.

easy way for a little help is to attach two 1 x 2 pieces 1.5" down for support while you are putting the mdf sheet in place

attach the back 1/4" plywood piece using a brad nailer, small screws, or small nails

add side supports 1 x 3 x 19" on each side. measure 17 1/2 inches up from the bottom as your starting point

on the inside of those supports add a 1 x 2 x 23 3/4 piece.

this will be your shelf support

add the 36 x 23 3/4" mdf or plywood piece for the shelf...drill pocket holes on the sides of the mdf or plywood to attach it to the side supports

at the bottom add 2 1 x 3 x 24 piece for the casters to attach too...(the casters will attache in three spots without this piece, so it may not be necessary, but i like the added support

Here is the miter saw insert I made - LOVE THIS!!!!!!!!!!!

insert is 35 7/8" x 23 7/8"

i made the top pieces as high as my miter saw surface for extra board support

turns out those are nice and handy storage spots for smaller cut pieces to use later