d shape seat MATCH by measurement
![](https://sites.create-cdn.net/siteimages/13/4/2/134242/19/8/7/19873372/265x265.png?1647031696)
How to measure
Manufacturers measurement all assume measurements are drawn from toilet pan rather than seat itself.
- Length : centre line of hinge to front of toilet pan
- Width : mid way side to side pan edge.
- Hinge holes - mid hole to mid hole of toilet pan