Yes, laminate (or Formica) countertops often come in precut sizes. It is important to measure your space and then do some research, or take the measurements to a local home improvement store to see if you can get the right size. If you do get precut laminate countertops, you may still have to cut holes for the sink and fixtures.

Marble countertops are often considered better than limestone because of their superior durability and luxurious appearance. Marble is harder and less prone to scratching and denting, though it still requires maintenance and sealing to prevent stains and etching. Marble is typically more expensive, but its beautiful veining and range of colors offer a high-end look. 

Epoxy is typically more affordable than granite, especially if you’re choosing a high-end slab. Most granite countertops cost $75 to $145 per square foot to install, with high-end varieties topping $185 per square foot. 

In contrast, epoxy countertops cost $50 to $150 per square foot to install. The material costs for epoxy are significantly lower than granite, but installation costs can be higher. Rather than simply cutting granite countertops to size before installation, your contractor will need to carefully pour the epoxy over an existing surface.

Yes, it is often possible to replace an undermount sink without removing the countertop, but success can depend on the countertop material. For materials like granite, the process is relatively straightforward. However, laminate or uniquely shaped countertops might need to be removed or modified.

The process typically involves shutting off the water supply, disconnecting the drain and plumbing pipes, cutting through the old silicone seal, and carefully lowering the sink from below. This requires a good understanding of plumbing and the right tools. If you are not confident in performing the replacement yourself, it is recommended to hire a countertop specialist or a plumber to handle the task.