1. Measure the Rough-In
The first step is confirming the rough-in measurement—this is the distance from the wall to the center of the toilet drainpipe (flange). Most homes have a 12-inch rough-in, but older homes might have 10 or 14 inches. Measuring correctly will save you time and money when buying your new toilet.
2. Inspect the Flange and Floor
Make sure the toilet flange is clean, level, and firmly secured. If the flange is damaged or too low, it can cause leaks or an unstable toilet. Also, ensure the floor is solid and flat—any soft spots or uneven surfaces should be fixed before proceeding.
3. Use a Proper Wax Ring
The wax ring (or rubber seal) creates a tight seal between the toilet and flange. Once placed, position the toilet directly over the flange and lower it carefully to avoid smearing or misaligning the seal. Do not lift and reset it—this could break the seal and lead to leaks.
4. Secure and Level the Toilet
Tighten the floor bolts evenly and gently. Overtightening can crack the porcelain base, while loose bolts can lead to wobbling. After securing the base, attach the tank (if it’s a two-piece toilet), then connect the water supply line.
5. Test and Check for Leaks
Turn on the water, let the tank fill, and perform multiple flushes. Watch for leaks around the base, tank bolts, and water line. If everything looks dry and stable, your toilet is good to go!
For those looking for a step-by-step visual guide on this topic—including tools needed, detailed procedures, and pro tips—this in-depth blog post will walk you through the full installation process:
???? How to Install a Toilet
It’s a great resource whether you're doing a DIY upgrade or just want to better understand how the process works.