熊之助 3 USEI'm 140 KG and am able to do pull-ups.I'm not confident this could actually support 250Kg. The stand flexes forward about 4cm while doing pullups, however it returns to its original shape.PACKING / ASSEMBLYThe packaging for the screws is not secure. It was torn open inside the box, so screws and bolts were spilled out in the box. This probably added 45 minutes to my construction time.This is really intended for two people to put together. I was able to assemble this myself in about 3 hours. Two screws were missing from my order, however the merchant was able to send me replacements within two days.There are some quality issues. This structure is powder coated. The inside was filled with the tiny plastic pellets used in the process. It created a big mess in my apartment. I had to vacuum several times.