Hi all, I am not sure this is the right forum, but I guess my question fits better here than in classical physics. I am building a lightweight flooring in my utility room to store some "not very heavy" items. Two years back when my house was being finished, I installed two wooden wall plates (175mmx63mm) on each side of the utility room. My plan was to have a flooring that would cover the whole 12 square meters (4 meters long x 3 meters across). So I installed a 4m wall plate on one wall, while on the other one I could only install a 2m wall plate because I had doors and needed to leave space for electrical conduits. So I planned to attach joist hangers to the wall to support the joists. Back then a friend suggested connecting the wall plate to the wall using chemical anchors, claiming that this would be very strong (supporting up to a ton) even on my wall made of concrete masonry units (not sure about the name in English, but I mean these: In the end, however, I discovered that each anchor can support around 50kg once you take into account all safety factors. So I decided to make a smaller storage flooring, covering only 2/3 of the room, with something that would look like this, where the two wall plates are in red. My question is the following. The 4m wall plate is connected to the wall by 8 chemical anchors distributed along its length and spaced by about 50cm. However, the weight supported by the joists will only be distributed along two thirds of the wall plate's length. My question is the following. How can I compute the load on each anchor knowing the load on each of the joists? I think this is some sort of beam analysis problem, but I haven't been able to find any free software for MacOS that can help me with this. Can you help me solve this by hand, or using some freely available tool? Little addition: to make this even more complex, the anchors are not all at the same height. The wall plate looks somewhat like this: Thanks everyone in advance!