What is saw TPI and how many 'teeth' do I need on my blade?

Close up of saw teeth on two hands saws
(Image credit: Steven Jenkins)

You need a new saw or saw blade but what saw TPI do you need? Whether you are looking for a new hand saw, hack saw, or a blade for a reciprocating saw you need to consider how many teeth the blade has.

Whatever type of saw you are looking to add to your DIY collection, the TPI needs to match the project you are working on. Get the wrong TPI and its almost inevitable you’ll be heading back to get a new saw or blade at some point to finish a job properly.

Here we reveal the subtleties and nuances of saw TPI to help you choose the right saw or blade. 

What does saw TPI on a saw mean? 

Steve Jenkins

Steve Jenkins is a freelance content creator with over two decades of experience working in digital and print and was previously the DIY content editor for Homebuilding & Renovating. 

He is a keen DIYer with over 20 years of experience in transforming and renovating the many homes he has lived in. He specialises in painting and decorating, but has a wide range of skills gleaned from working in the building trade for around 10 years and spending time at night school learning how to plaster and plumb.

He has fitted kitchens, tiled bathrooms and kitchens, laid many floors, built partition walls, plastered walls, plumbed in bathrooms, worked on loft conversions and much more. And when he's not sure how to tackle a DIY project he has a wide network of friends – including plumbers, gas engineers, tilers, carpenters, painters and decorators, electricians and builders – in the trade to call upon.