This bunk bed steel frame is specially customized for upper and lower bunk bed matching, constructed with thickened high-strength steel pipes and full welding craft to form an integrated sturdy structure. The overall frame features excellent load-bearing and anti-shock performance, which can stably bear the weight of adults and children without shaking, bending or loose joints during daily sitting, lying and climbing. All steel surfaces adopt electrostatic anti-rust spraying treatment, with scratch-resistant, moisture-proof and anti-corrosion characteristics, adapting to long-term use in student dormitories, children’s rooms, staff quarters and budget hotels. Standard reserved installation holes are set on the frame, convenient for quick assembly with bed boards, guardrails and stair accessories without complicated modification. Reinforced connecting beams and side support structures are added to enhance overall stability, effectively preventing safety hazards caused by long-term frequent use. The frame reserves reasonable ventilation gaps to keep air circulating inside the bunk bed, avoiding damp mildew and peculiar smell. It supports customized length, width and height specifications, large batch wholesale and OEM supporting cooperation for furniture factories and dormitory engineering projects.