Structural · definition
A ridge beam structurally carries rafter loads (required for vaulted/cathedral ceilings); a ridge board is only a non-structural nailing point. Confusing them is a serious error.
Source: HUD — Residential Structural Design Guide, Second Edition
Related terms
Where this term fits in a remodel
The pillar guides set terms like this one in context — what the work involves, what drives its cost, and where it sits in the sequence of a project. Pricing a specific house takes a defined scope and an on-site assessment.