Checking Whether a Footprint Courtyard Covers the Required Access

A courtyard check is only as useful as the geometry and purpose encoded in the footprint. A component may fit physically while leaving insufficient space to mate a connector, operate a latch, or reach a fastener. Review functional access before treating a clean courtyard DRC result as proof that the layout can be assembled and used.

Understand the library convention

KiCad’s courtyard convention describes a boundary around the component body and land pattern and calls for additional required clearance for features such as mating connectors. A footprint’s origin and library source do not prove that it includes the access required by your particular assembly.

Compare the courtyard with the selected component drawing, including protruding leads, tabs, latches, and mating parts. Identify the view and nominal dimensions used. Keep the component body representation separate from any process or functional clearance envelope.

List the operations around the component

• Placement and soldering access during assembly.
• Connector insertion and extraction paths.
• Latch, lever, or screw operation.
• Test or programming access where required.
• Service replacement without damaging adjacent parts.

For example, a vertical connector body may clear a nearby capacitor while its mating plug or operator access does not. Expanding the courtyard may help automated checking, but the mating motion may also require a three-dimensional review.

Represent and verify the important envelopes

Use the CAD system’s appropriate courtyard, keepout, or mechanical representation for each requirement. Document the meaning of any custom outline so other designers do not remove it as redundant graphics. Avoid silently enlarging a shared library footprint for a requirement that applies only to one enclosure arrangement.

Run the relevant checks and inspect difficult areas with the actual mating parts or suitable models. A generic three-dimensional body can omit a moving latch or tool clearance, so verify its scope before relying on it.

Review exceptions individually. An intentional overlap may be acceptable for one assembly sequence and impossible for another. Record the operation and evidence supporting the exception rather than merely suppressing a violation.

Release the footprint and access assumptions with the mechanical and assembly design. Revisit them when a connector variant, neighboring component, enclosure, or service method changes. The useful courtyard is a controlled representation of a known clearance purpose, supported by additional checks where two-dimensional spacing cannot describe the required operation.

Keep photographs of representative mating or tool access when they explain a decision more clearly than an enlarged rectangular boundary.