California building code deck construction

Do you need a permit to build a deck in California?

As a simple rule, you need a permit for any deck that is higher than 30 inches off the ground. This rule applies to most decks . Anything lower than 30” is often considered a patio or “porch deck ,” and no permit is required .

What is the code for building a deck?

MORE BUILDING code topics Thirty-six inches is the most common residential height, but some jurisdictions vary. Guardrails are required once the deck is 30 ″ or more above grade. A 36 ”rail measured from the top of rail to the deck surface is required.

Should a deck be built level?

When decking is installed conventionally, with gaps between adjacent boards, sloping the deck surface is not necessary. Some decking products with limited drainage recommend sloping the deck frame to a 1/4” vertical per 12′ horizontal pitch.

What should you not do when building a deck?

12 Deck Building Mistakes to Avoid Being Inattentive to Local Deck Building Code. Building Inadequate Deck Post Footers. Attaching the Beam to the Sides of the Support Posts. Incorrectly Spacing the Joists. Installing the Wrong Deck Boards for Your Use. Attaching the Ledger Board Directly to the Siding. Blocking Egress and Access to Services.

What happens if you build without a permit in California?

Permits ensure that construction is performed in compliance with state and local codes, including safety standards. Failure to obtain a building permit is a violation of Contractors License Law. Further, construction performed without a permit can expose a homeowner to additional liability and costs.

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How high can a deck be without a permit?

Building deck without a permit may result in removing it, possible penalties and back property taxes. A building permit is required if the deck is attached to the house or is 30 inches above grade. If the deck is freestanding, is 30 or less in height and less than 200 square feet a permit is not required.

Can I use 2×6 for deck joists?

In general terms, joists spaced 16 inches on center can span 1.5 times in feet their depth in inches. A 2×8 up to 12 feet; 2×10 to 15 feet and 2×12 to 18 feet. 2×6 joists should only be used on ground-level decks that do not require, and will not provide for, any guards.

How tall should handrails be on a deck?


How many footings do I need for a 12×16 deck?

four footings

Which direction should my deck boards run?

The rain water could collect around the structure of your home and cause rising damp and other host of problems you don’t want. If your using these decking boards with the grooves (castle tops)… And your deck is going to be attached to your home, you must ALWAYS direct the water away from your property.

Can patio be same level as house?

The patio should be built at a grade that is lower than the kitchen. If you absolutely must have the patio at the same grade as the interior room adjoining it, provide for some sort of physical gap between the two structures, like a grid you can safely walk on but allowing drainage.

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Can I use deck pier blocks instead of footings?

Pier blocks can be used instead of footings for a ground-level deck not requiring permits. Piers blocks can also be used if the frost level depth is less then the height of the pier block . These footing size requirements are to ensure enough soil bearing to prevent the joist from sinking in the ground.

How much should a deck be sloped?

A solid deck needs to be sloped between a 1/8″ (3mm) and ¼” (6mm) per foot to encourage water drainage. Decks with properly gapped decking boards require no slope as rain will naturally run off the boards even when level.

What to know before building a deck?

10 Things to Know Before Building a Deck Permit Now, No Headache Later. Study your local building codes and get a permit if needed. Location, Design and Materials. Create a Solid Base. A Level Ledger. Square the Support Frame. Board Selection and Placement. Fastener Choice. Board Spacing.