How to cut out formica countertop for convection oven?

Question

I want to modify cabinets and countertop to accept a built-in convection wall oven. Someone mentioned the use of a "bottom-cut" saw to cut out the opening in the countertop.

Answer 1

Often the appliance or item to be installed in the new hole will have a "flange" or rim which will conceal the cut edge of the opening. If the edge of the opening will not be concealed a router with a special bit will work well and minimize creating a damaged edge. One of several brands of rotary saw will work well too. It is also possible to cut an opening by hand if the installation will conceal the edge. I would STRONGLY recommend practicing on similar material first if you have never cut counter top before.

Answer 2

If you intend to cut the formica in place then be careful, as formica can be brittle when being cut. Mark out the desired cut lines and then put down masking tape around both the inside and outside of your lines. This helps prevent the formica from cracking away from the surface. Also, make sure you use a good blade. A dull worn out blade will compound the problem. I have cut a number of countertops using a circular saw in this manner and have had no problems.

Answer 3

Routers are the most common industrial tool used to cut out holes in countertops... tho, as a professional, I would recommend a downward spiral bit, rather than straight, if you are cutting from the top side of the countertop. If you are cutting from the bottom side, then an upward spiral bit is what I would recommend. By having the spiral moving in the direction of the laminate, it is always cutting 'down' into the laminate, which prevents chipping and flaking.

Another option is to use a jig saw, or its larger cousin, the reciprocating saw (commonly called a "saws-all"). With either of these tools, you would want to drill your four corners with a good sharp drill bit, at least as large as your blade on the saw. It often helps to apply a good quality masking tape to the surface of the laminate, before cutting. This helps to eliminate some flaking when you are cutting it.

Any of these tools, if you don't own them, can usually be rented at a local tool rental, tool supply, or building supply store for a reasonable amount.

Have Fun

Answer 4

There are blades for standard rotary saws made for formica or laminate counters. The best thing to do is put Masking tape over the area that needs cutting, and put the line on the tape-this prevents splitting. Then cut and remove tape. Jim

Answer 5

you can use a regular circular saw with a finish blade for the straight lines and a jig saw for the curves. Just need to put masking tape over the formica where you will be cutting to avoid chipping.

Answer 6

hey bud, you can buy special blades for a jig saw that cut on the down stroke instead of the up stroke, and that will minimize any chipping as you cut. pre drilling the corners will eliminate any stress cracks in the corners, and make the turning of the blade easier. you will know when you find the correct blade as the teeth points are facing down instead of up. good luck, hope this helps.

Answer 7

use a fine tooth (20) hack saw to avoid formica from cracking, the saw must be on the formica side.

Answer 8

Router wth a straight spiral bit....will bore hole to be cut out and trim edges

Answer 9

tape the lines too, it will help