Patio cover structure

[Hsenturk]

I’m planning to cover my existing patio by extending the roof of the house. It is a 12 x 14 area to be covered. My plan is to use 6x6 for posts and beams, and 2x6 rafters. For post footing, is 2’ depth acceptable?

 

[mtlogcabin]

Chapter 3 Building Planning: Building Planning, New Jersey Residential Code 2015 | UpCodes

UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction

up.codes

See note #4 below and check with local AHJ

R301.2 Climatic and Geographic Design Criteria

Buildings shall be constructed in accordance with the provisions of this code as limited by the provisions of this section. Additional criteria shall be established by the local jurisdiction and set forth in Table R301.2(1).

TABLE R301.2(1)
CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA

GROUND SNOW LOAD (lbs./sq. ft.)	WINDSPEED4 (mph)	SEISMIC DESIGN CATEGORY	SUBJECT TO DAMAGE FROM
Weathering1	Frost line depth2	Termite3
20 see note 4	See Figure R301.2(4)A	N/A	Severe See note 1	2 feet-6 inches (Southern Area) 3 feet-0 inches (Northern Area) See notes 2, 3 and 4	Moderate to Heavy

For SI: 1 pound per square foot = 0.0479 kPa, 1 mile per hour = 0.447 m/s.

Notes:

1. Weathering may require a higher strength concrete or grade of masonry than necessary to satisfy structural requirements of this code. The grade of masonry units shall be determined from ASTM C34, C55, C62, C73, C90, C129, C145, C216, or C625 listed in Chapter 43.
2. The frost line depth may require deeper footings than indicated in Section R403.1.4. The jurisdiction shall fill in the frost line depth column with minimum depth of footing below finished grade.
3. New Jersey is divided into two zones: Zone 1 consists of Monmouth and Burlington Counties and all counties to the south. Zone 2 consists of Mercer and Middlesex Counties and all counties to the north.
4. The enforcing agency having jurisdiction may establish values other than the ones listed for "ground snow load," and "frost line depth" if warranted by documented local climatic and geographic conditions."

 

[fatboy]

Check your beam and rafter sizes with this.

2021 International Residential Code (IRC)

ICC Digital Codes is the largest provider of model codes, custom codes and standards used worldwide to construct safe, sustainable, affordable and resilient structures.

codes.iccsafe.org

 

[tbz]

I’m planning to cover my existing patio by extending the roof of the house. It is a 12 x 14 area to be covered. My plan is to use 6x6 for posts and beams, and 2x6 rafters. For post footing, is 2’ depth acceptable?

Minimum footing depths in NJ are 36" and in some areas 42"

Are you planning on doing this yourself?

You are going to need a full set of plans showing the footings design.

Here is the link to the current 2018 NJ IRC addition

CHAPTER 4 FOUNDATIONS - 2018 INTERNATIONAL RESIDENTIAL CODE, NEW JERSEY EDITION

ICC Digital Codes is the largest provider of model codes, custom codes and standards used worldwide to construct safe, sustainable, affordable and resilient structures.

codes.iccsafe.org

 

[rktect 1]

For post footing, is 2’ depth acceptable?

The answer to your specific question is NO.