Yes, bed bugs will stay in a metal bed frame. Metal offers no protection against infestation — bed bugs hide in joints, screw holes, hollow tubing, and any crevice where they can stay close to a sleeping host.
Metal bed frames don't repel or deter bed bugs the way some buyers assume. Unlike wood, metal has fewer surface cracks, but the structural joints, hollow legs, and bolt openings on a metal frame create plenty of harborage space. Bed bugs are driven by proximity to heat and carbon dioxide from sleeping humans, not by material preference — a metal frame positioned next to a mattress is just as viable a hiding spot as a wooden slat.
- Bed bugs can squeeze into gaps as narrow as 1.5 mm — smaller than most metal frame joint gaps.
- Metal bed frames with hollow tubing provide internal harborage that is nearly impossible to treat with topical sprays alone.
- Bed bugs typically stay within 5–8 feet of a sleeping host, making any bed frame a primary harborage site regardless of material.
- Heat treatment (120°F sustained for 90+ minutes) penetrates metal frame joints and remains the most reliable eradication method.