It’s not a surprise that patterns exist in construction. If they didn’t, you couldn’t support a roof, or build a staircase, or have walls. But watching a building in the process of being constructed helps you realize just how many patterns there are. How many patterns can you see on this rainy day?
Posted for Jude’s 2020 Photo Challenge #5: February’s theme / technique: Being Creative with Patterns.
Zebra's Child 
Plenty of squares and triangles here Hannah. And plenty of colour too! Geometric shapes play a huge part in construction and you have captured a lot here. Thank you!
Most welcome., Jude. Thanks for the challenge!
[…] and Jo found lots of geometric patterns at the waterfront as did Hannah on a construction site. […]