Q&A for How to Measure Countertops

Non-porous is always better if you're worried about stains. Porous stone absorbs whatever spills into it, so it can be a lot harder to get stains out. So, things like limestone and marble are going to show something like a red wine stain because they're super porous.

It depends on the material, but usually, yes. Something like marble absolutely needs to be sealed. Occasionally, manufacturers will ship counters out pre-sealed, but you do need to reseal them periodically.

Quartz is really one of the best options out there. It's not porous, it's very difficult to stain it, and it comes in a variety of styles and looks. Quartz is also super durable, which is something you really want in a countertop.

You want to add 3/4 to 1 inch to the length for overhang on the edge. 1 1/2 inches if it overhangs on two side edges. Then round it to the nearest 1/8 inch.

That's 148 sq feet. If you buy pre made countertops, they will come in the right width for the 24-inch cabinets, you will just have to measure the length as described in this article.

Ideally, yes. Wall deformations or exact placement can make or break a counter top, literally. Depending on the walls or confines around the counter top, the counter top may either have to be slid flat into place or tilted down into place.