This install has hidden defects. Crawl it, click anything that looks wrong, and flag it. Slow sweep — check every pier, every strap, both ends.
REVEAL ANSWERS
NEW DEFECT SET
INSPECTION COMPLETE
RUN ANOTHER SET
CLOSE
FIELD CONTROLS
You are under a double-wide on a CMU pier / poured-pad / tie-down system, eye height ≈ 26″ (crawling). Your headlamp follows your view.
W A S D / arrows
Crawl forward · left · back · right
Drag mouse
Look around (headlamp follows)
Click component
Open its spec card (pass / fail criteria)
Shift
Crawl slower (detail pass)
Touch
Left pad = move · drag right side = look
EXPLORE — correct reference install. Every component is clickable and labeled. INSPECT — a randomized set of real-world defects is injected. Find and flag them all. The most commonly missed item in the field is the longitudinal tie — check both end bays. WIND ZONE — toggling to Zone II–III adds the vertical sidewall straps that higher wind zones require in addition to diagonal frame ties.
Training aid for internal inspector onboarding. Geometry and spacing are nominal/teaching values — actual installs are governed by the manufacturer's installation manual, 24 CFR Part 3285, and the HUD PFGMH. Not for construction.