Glossary / horizontal projection

horizontal projection

A building part that sticks out, such as an eave, balcony, or patio cover. California tests the underside to SFM 12-7A-3. It is not a vent.

Last verified 2026-08-23. JSON (CC BY 4.0)

Also called: overhang.

Related

• eave
• soffit
• eaves
• sfm-12-7a-3

Where this term is used

13 guides use this term.

• Chimney spark arrestors
• Deck ledger and the wall intersection
• Dryer vents versus mesh
• Ember versus flame versus radiant heat
• OSFM listing is usually voluntary
• Roof-to-wall transitions and dormer cheeks
• Safer from Wildfires is not Oregon law
• The 12-foot rule

All guides →