Originally posted by @Kumar Tummalapalli:
Wow .. 300 fr countertops with some sweat equity , If time permits can you detail more. Like if you use a wet saw or dry saw . How do you take measurements and make sure that the slab fits right . I am scared that I won't be accurate and end up wasting a slab
Here are the details of the process:
1) cut approx. 3/4 inch plywood in the size of the cabinet(s) you want to install granite on.
2) Install plywood on cabinets and then cut out sink and cooktop etc, slightly larger than the space needed
3) place the pre-fab granite slab on 2x4's so that it is well supported along it's entire length.
4) Measure your cabinets and then mark the granite slab where you want to cut it.
5) use a circular saw with a diamond masonry blade to cut it using the following process:
a) measure the distance from the saw's guide to the blade (usually around 1.5 inches)
b) clamp down a angle iron in proper distance from the cutting line (if the blade is 1.5 inches from the guard, place the angle iron 1.5 inches from the cutting line). Before cutting, place the circular saw with it's guide along the angle iron to make sure that the blade is lined up with the spot that you want to cut the granite.
c) place blue painters tape along the cutting line and use some water to soak the tape in water.
d) you can cut the slab either wet or dry.. Wet is usually a little smoother cut but not too much difference..
e) cut with the circular saw in reversed direction, gliding the guard of the circular saw along the angle iron. You need to cut reverse as circular saws, unlike tile saws, have a blade rotating in the opposite direction, so, in order to get the correct up to down motion of the blade, you need to cut in the opposite direction. You can have an assistant spray a little bit of water at the front of the blade while cutting to get an even smoother cut.. If you cut very slow and carefully, you should also be able to get a very fine and nice cut without having someone spray water on it.. The important part is that the angle iron must be clamped down well so it won't move and mess up the cutting line.. If you cut the slab with the circular saw guard gliding along the angle iron, you will get a perfect cut..