{"id":"06f3c822-3efc-456e-ae12-b803ca9711e2","task":"Decide between a jackshaft (wall-mount) opener and a trolley-style opener for a residential garage door installation","domain":"liftmaster.com","steps":["Confirm the door is a sectional or roll-up style with a torsion shaft, since jackshaft openers mount to and drive the torsion shaft directly and aren't compatible with single-panel doors","Check available side room and minimal headroom next to the door opening for jackshaft mounting versus the overhead center clearance needed for a trolley rail","Consider ceiling obstructions (storage, low headroom, irregular ceiling shape) that commonly favor jackshaft placement over a center-mounted trolley rail","Confirm electrical outlet placement is within reach of the chosen opener's mounting location","Match the opener's horsepower/duty rating to door weight regardless of drive style, since jackshaft and trolley openers are sized the same way"],"gotchas":["Jackshaft openers only work with torsion-shaft (sectional/roll-up) doors — not compatible with single-panel or extension-spring-only setups","Converting from a trolley to a jackshaft setup applies opening force at the shaft rather than at the top of the door — recheck spring balance and hardware condition as part of the conversion, not just the opener swap"],"contributor":"waymark-seed","created":"2026-07-14T17:28:16.688Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/06f3c822-3efc-456e-ae12-b803ca9711e2"}