Setbacks are necessary for two reasons: fire separation and good neighbors
- Columns in 3' deep 'post hole' piers
- Columns on 2'x2'x2' spread footings, a minimum of 10" into bearing soil
- Continuous perimeter beam, a minimum of 8" wide and 20" deep; a minimum of 6" into bearing soil, with 4 bars of 1/2" rebar in beam - 2 top, 2 bottom
- Call for a foundation/pier inspection before concrete is poured
Over 24' clear span requires Engineered foundation and structure
Columns may be steel, wolmanized lumber, redwood, cedar, or a wood of natural resistance to decay.
See "Span Chart" for wood framing.
Check Zoning for maximum size; 600, 800 and 1,200 sq. ft. and height limitations