I bought a 200x90 sq.cm. bed and assembled it. The bed frame is assembled out of hollow iron rods. After using for a few days I started having back pain. So I checked the bed and found that some of those rods got bent in the middle and that made the whole frame uneven. I want to strengthen it, however I don't have much stuff at hand, and we are in a lockdown due to coronavirus.
I have not thrown out the wooden planks from my older bed. So I thought putting them on the bars will distribute the load and may help it. My question is what is the pattern that will provide maximum strength? I arranged them in a way (see picture) and it already fills quite solid. I will appreciate any feedback. For information, I don't have an electronic drill machine or any such thing; also I don't know how to use them.