A built-in safety problem in a product's design.

"Built-in" matters because the problem exists before the product is made, sold, or used. The blueprint, layout, shape, materials, or safety features make the product unreasonably dangerous even if the individual item was assembled correctly. That is what separates a design defect from a manufacturing defect, where something went wrong in making one unit, or a failure to warn, where the product may need better instructions or hazard labels. A lot of bad advice treats any injury-causing product as "just user error." That is not always true. If the product could have been designed in a safer, practical way without ruining its purpose, a design defect may be the real issue.

That matters in an injury claim because the focus is often on the product line as a whole, not just one broken item. Guards that are too easy to bypass, unstable ladders, crush-point hazards, and tools that kick back under normal use can point to a broader design problem. Evidence may include safer alternative designs, prior incidents, testing records, and expert witness opinions. A product liability case may target the manufacturer even when the item looked normal.

In Connecticut, an injury claim tied to a defective product is still affected by filing deadlines. For many personal injury claims, Connecticut's statute of limitations is generally two years after the accident, under Conn. Gen. Stat. § 52-584. Waiting too long can wipe out an otherwise strong claim.