Hello, I'm new to the forum and relatively new to woodworking. I am going to start on a kitchen cabinet job in my home in the fall, starting with a single wall and working my way around.
My question is about accounting for kerf in cutting the cases from 4x8 sheets of birch. When I lay out a cut list on on the sheet I can fit three 24"x36" pieces (sides and back) and one 24"x24" piece (bottom) on one sheet, more than enough for a single 24x36 base cabinet.
However, with a 1/8" kerf, all of these pieces are going to be slightly less than 24x36. If I leave room for the kerf on the diagram, I can't even get a single cabinet on a sheet. (see attached)
Should I just assume that the cabinets will be slightly less than 24x36?
A base cabinet side isn't 24 inches wide as there is a face frame and 1/4 inch back. Even if it is euro style the side will be 1/4 inch less allowing for the back.
The only time I can think of when the base cabinet side would be exactly 24 inches wide would be if there is no face frames and the back is let in. If you bust the sheet of plywood right down the center, you will have two sheets 23 15/16 as the the curf is around 1/8 inch.
If anyone can see that 1/16 inch less on a cabinet side they need to be building cabinets. I don't know of anyone, even a vet cabinet man who could spot a 1/16 inch narrow cabinet side. I forgot, the euro cabinet will have an edge band so that will take up a little. I'm not trying to be a smart aleck just brain storming.
Just another thought, if you can use a separate toe kick you can get three cuts for three base cabinet sides out of one half sheet of plywood. The base cabinet side isn't 36 inches tall as you have to allow for the counter top and if you take the toe kick off the cabinet side you can get three cuts length wise for your sides. The only place I will cut a full length base cabinet side is if it is an end cabinet and there is no base molding to hide the side of the kick.
Just a couple more things and I will shut up, if you do leave the kick off be sure to recess cabinet bottom back up 3/4 inch so the bottom rail of the face frame will work out right.
So for a base cabinet with face frames and a back, not let in, and a 3/4 inch counter top and separate toe kick, (allowing 4 inches for a kick) the side would be 23 inches wide X 36 inches full height of cabinet minus 3/4 inch for top, minus 4 inches for separate kick will = 31 1/4 inches tall so measurement of base cabinet side will be 23 X 31 1/4.
Another note, on the separate toe kick, where the sides of the cabinet sits on the kick, the kick will be 4 inches tall but where the kick touches the bottom of the base cabinet it will be 4 3/4 inches. (remember, you had to recess the cabinet bottom back up 3/4 inch so the face frame would work out right.)