If you've ever wondered what the black diamonds on a tape measure are for then you're not alone - and people have taken to the internet to find out.

I've seen it used for wood beams as well as wall studs, and also solid lumber joists and rafters." These diamond markers were more crucial back in the heyday of lumber and construction ...

The Packed to the Rafters star, 60, posted to her stories on Tuesday with a snap of herself posing with the 28-year-old MAFS favourite. Jamie, wearing her blonde locks in a bun, can be seen ...