The style of your bathroom can become dated over time, and one of the easiest ways to update and refresh its look is replacing the countertop. Modern bathroom cabinets are topped by one-piece countertops with precast sinks. Most models available at home improvement stores are made from cultured marble, while higher-end varieties are cast from marble, granite or other hard stone. Replacing the vanity countertop is a rather easy job that can be completed in the space of a few hours.
Sizing Your Installation
Home improvement stores typically stock vanity tops in 19- and 22-inch depths, with standard widths at 17, 25, 31, 37, 49, 61 and 73 inches. Special orders can usually be made for other widths and depths. Buy the top that is the next size up from the width of the cabinet. A custom vanity top maker based in Georgia will design vanity tops as long as 140 inches and as deep as 30 inches.
Figure Out the Center
Every bathroom sink or vanity top has three holes cut at the back of the sink to accommodate a faucet. The distance from the middle of the far left hole to the middle of the far right hole is called the faucet center. Though the standard center for bathroom sinks is 4 inches, widespread faucets are available. One of the largest specialty bath brands in the world makes faucets with centers that measure 8 to 16 inches. If the intention is to replace only the countertop and keep the faucet, be sure to measure the current faucet center and buy a new vanity top with a similar measure.
Most vanity tops are constructed from a material called cultured marble, a polymer composite that is chemical- and stain-resistant. Cultured marble is also known as laminated marble or cultured onyx. Vanity tops can also be constructed from granite and quartz.
Keep It on the Level
Age, water and other factors can wear down a bathroom cabinet over time. Use a level to check the evenness of the cabinet’s top edge after removing the countertop and sink. If the cabinet is not level, purchase shims along with the vanity top to level off the new installation.
No Need to Clip
Vanity tops are held in place by the plumbing installed. The tension created by a tightly installed plumbing fixture and drain assembly is enough to hold the vanity in place without worry of moving or shifting. Depending on the material, the top may be heavy enough to prevent shifting or movement.