What is the diamond on a tape measure used for? Our DIY expert explains all

black man using tape measure on piece of wood with tools around him
What is the diamond on a tape measure and how do you use it? (Image credit: Jackyenjoyphotography/Getty Images)

If you've ever wondered ‘What is the diamond on a tape measure used for?’ then our DIY expert, Steve Jenkins has the answers to your questions. 

If you haven't noticed it, you'll generally find it sitting on the top edge of the modern day tape measure, and appearing at regular intervals on the imperial scale. But, to confuse matters slightly, it's worth noting that every tape measure isn't the same.

It can appear once at regular measurements, it might appear twice at a different set of intervals, or it might not appear at all. 

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.