Choosing a toilet might seem straightforward, but it requires careful consideration, especially regarding rough-in size. Toilets are among the most frequently used fixtures in any home, making it vital to select one that fits your space perfectly. This guide will help you understand toilet rough-in sizes and how to measure them to avoid the common mistake of buying a toilet that doesn’t fit.
What is Rough-In Size?
Rough-in size refers to the distance from the center of the toilet’s drain or waste outlet to the finished wall behind it. If the rough-in size doesn’t match the dimensions of the toilet, it won’t fit properly. Typically, the standard rough-in size is 12 inches, though older homes may have 10-inch or 14-inch rough-ins. Smaller bathrooms often feature 10-inch rough-ins, while larger ones may have 14-inch rough-ins.
How to Measure Rough-In Sizes
Here’s how to measure rough-in sizes correctly:
- Measuring Without a Toilet:
- Locate the drainpipe or flange opening on the floor, often a round hole with white plastic lining.
- Measure from the bare wall to the center of the drainpipe or flange.
- Double-check your measurement; it should be 10, 12, or 14 inches.
- Measuring With a Standard Toilet:
- Identify the base bolts or caps at the toilet’s base, usually found in the trap way on either side.
- Use painter’s tape to mark where you’ll measure.
- Measure from the wall to the center of the base bolts.
- Verify your measurement matches standard sizes.
- Measuring With a Corner Toilet:
- Locate the connection at the base of the toilet.
- Estimate the drainpipe’s center between the bolts.
- Mark the flange location with painter’s tape and measure from the flange to the walls on either side, ensuring a 90-degree angle with a carpenter’s square. The midpoint where both measurements intersect is your rough-in size.
- Measuring for Wall-Mounted Toilets:
- For wall-hung toilets, measure vertically from the floor to the center of the waste drain.
Get Professional Help with Bassett Services
If you’re still unsure about measuring rough-in sizes or prefer expert assistance, Bassett Services is here to help. Our licensed plumbing professionals can guide you in selecting the ideal toilet for your bathroom needs. Contact us today to get started!
