To measure a toilet tank lid accurately, the most critical step involves focusing on the underside of the lid to determine its maximum dimensions.
The Key Measurement Technique
When measuring a toilet tank lid, precision is essential, especially if you are seeking a replacement. The shape of lids can vary significantly, so taking the correct measurements ensures a proper fit and aesthetic match. The primary measurement required is typically the maximum width of the lid.
Here's how to measure your toilet tank lid effectively, incorporating a crucial step:
- Prepare the Lid: Carefully remove the lid from the toilet tank and place it on a flat, stable surface.
- Flip the Lid: Start by flipping the lid upside down. This provides the best perspective to find the widest point, as the underside often reveals the true outline that sits on the tank.
- Measure the Width: Now measure the maximum distance you can find left to right across the underside of the lid. This measurement is vital because it represents the widest point that needs to sit correctly on your tank.
- This maximum width may be towards the front, the back, or the middle of the lid, as all lids have different shapes.
- The most important thing is to measure it at its maximum on the underside. Use a measuring tape or ruler and measure straight across.
- Measure the Depth: While the reference focuses on width, for most replacements, you will also need to measure the maximum depth (front to back) of the lid on the underside using the same principle – find the longest distance from the front edge to the back edge.
- Record Measurements: Note down both the maximum width and maximum depth measurements. It's often helpful to record them to the nearest 1/16 or 1/8 of an inch for accuracy.
Why Measure the Underside?
Measuring the underside is crucial because it reveals the dimensions that directly interact with the tank opening. The top surface might have bevels or designs that don't reflect the actual footprint needed to cover the tank properly.
Example Measurements Table
Keeping your measurements organized helps when looking for a replacement.
| Measurement | Location | Example (Inches) |
|---|---|---|
| Width | Underside (Max) | 18 ½ |
| Depth | Underside (Max) | 8 ¼ |
By following these steps, particularly the critical method of measuring the maximum width on the underside, you can obtain the necessary dimensions to find a suitable replacement or simply know the size of your current lid.
