Q. Are wooden door handles standard sizes?

Answer

Wooden door handles come in pretty much all standard sizes. While 2 3/8 inches (60 mm) and 2 3/4 inches (70mm) are the most common size for D pull door handles in the West, in India, the standard sizes are typically slightly larger (95 - 100mm for D pull handles). Another important thing to bear in mind while shopping for wooden door handles is that while most modern wooden doors are compatible with lever door handles, doorknobs, and pull handles of industry-standard size, older wooden doors typically used slightly smaller to significantly smaller door handles. As such, it might be a laborious (if not impossible) job to retrofit a modern door handle on an older wooden door. However, it might be possible to retrofit modern round doorknobs into an existing cavity of an older round doorknob with some expertise.