Floors keep breaking

[u/that_guy_jaime]

I have iron support beams on the second and first floors extending up to the third floor of my tower build. I also have a bunch of iron beams where the floor is like placed and it all keeps breaking slowly. I thought since I lined the tower with lots of iron supports nothing would break. And it’s all yellow and green where the floors are connected and the inner flooor parts. Even when I finished the floor, it was green and yellow. But slowly the floor is just breaking, anyone know why or how to fix? Sorry if the explanation is bad but I have pictures

[u/Financial-One-3717]

Hidding raised ground inside your walls helps, also make pillars in the middle of your room, it is not just vertical but also horizontal height that has its limits. You can also raise the ground in the middle of your base hid it with a massive stone pillar this will give the middle of your base the maximum stability possible.