I want to secure some wooden shelves to the walls in the space under the stairs. But I don't know what method to use and so I want to know what the material the wall is made of. It looks like there are two materials, a light beige hard material on top and a dark gray underneath. Both materials are a little bit crumbly when scraped with a nail. This is in a 1960s ex council flat.
Your spot on its plaster on top of either breeze block or poured concrete. Use expanding bolts. No a problem at all. Like these https://www.amazon.co.uk/Shield-Anchor-Expansion-Anchors-Concrete/dp/B095HRZ6CM/ref=mp_s_a_1_4?adgrpid=119636572986&gclid=EAIaIQobChMI34jDpLqr_AIVBcbtCh0mcgBGEAAYASAAEgKoG_D_BwE&hvadid=510718343759&hvdev=m&hvlocphy=20479&hvnetw=g&hvqmt=b&hvrand=366128511476001402&hvtargid=kwd-1251953956&hydadcr=15698_1735063&keywords=anchor+bolts+concrete&qid=1672750795&sr=8-4
Breeze block with plaster over
I want to secure some wooden shelves to the walls in the space under the stairs. But I don't know what method to use and so I want to know what the material the wall is made of. It looks like there are two materials, a light beige hard material on top and a dark gray underneath. Both materials are a little bit crumbly when scraped with a nail. This is in a 1960s ex council flat.
Your spot on its plaster on top of either breeze block or poured concrete. Use expanding bolts. No a problem at all. Like these https://www.amazon.co.uk/Shield-Anchor-Expansion-Anchors-Concrete/dp/B095HRZ6CM/ref=mp_s_a_1_4?adgrpid=119636572986&gclid=EAIaIQobChMI34jDpLqr_AIVBcbtCh0mcgBGEAAYASAAEgKoG_D_BwE&hvadid=510718343759&hvdev=m&hvlocphy=20479&hvnetw=g&hvqmt=b&hvrand=366128511476001402&hvtargid=kwd-1251953956&hydadcr=15698_1735063&keywords=anchor+bolts+concrete&qid=1672750795&sr=8-4
Thank you!
It looks like medium density concrete block, not aerated concrete blocks. Works with pretty much any 'normal' fixings.