On September 19, 2025, the building materials sector will burst into colour as the industry celebrates Maddie’s Day.
This sector-wide celebration encourages participants to wear yellow as a way of shining a spotlight on the opportunities and career paths the industry offers to young people.

How to get involved:
- Wear it loud, wear it proud: Dress head-to-toe in yellow. The bolder, the better.
- Show it off: Share your yellow looks on social media.
- Tag it: Use #MaddiesDay to link it all together.
Spread the energy: Like, share, and amplify posts from friends, colleagues, and industry peers.
Every picture, every post, and every conversation adds fuel to the movement, helping inspire the next generation to see the building materials sector for what it really is: vibrant, diverse, creative, and fun.
Let’s paint the sector yellow – and make Maddie’s Day bigger, brighter, and bolder than ever before!
Builders Merchants Journal – BMJ Publishing to Builders Merchants and the UK merchanting industry for more than 95 years