Limited Specialty (D-Series) (C-61) · Lesson 1 of 6

D-03 Awnings: Clearance, Projection and Fabric Rules

"D-03 Awnings: Clearance, Projection and Fabric Rules" is lesson 1 of 6 in the Limited Specialty (D-Series) (C-61) Learning Hub. It opens with "What D-03 Installs and Which Code Applies" and works through 5 short steps, then a worked example you can check yourself against.

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Steps in this lesson

  1. What D-03 Installs and Which Code Applies
  2. Frame and Load Rule - CBC 3105.2
  3. Fabric and Covering Rule - CBC 3105.3
  4. Height and Projection Over a Sidewalk - CBC 3202
  5. Check Order and Drainage

The worked example in the course applies this lesson to a realistic job in 5 steps, from "Lowest point" through "Post setback".

What you'll be able to do

  • Explain the main idea of "D-03 Awnings: Clearance, Projection and Fabric Rules" in plain language you can use on the exam.
  • Apply this step with confidence: "Fabric and Covering Rule - CBC 3105.3".
  • Apply this step with confidence: "Height and Projection Over a Sidewalk - CBC 3202".
  • Apply this step with confidence: "Check Order and Drainage".
  • Test yourself on the worked example and the quick-check quiz inside the classroom.
D-03 AWNING: CLEARANCE AND PROJECTIONFixed canvas awning over a 9 ft sidewalk, restaurant frontageSIDE ELEVATION (NOT TO SCALE)7 ft min6 ft limit6 ft 10 inlowestpointsidewalk 9 ftproposed 7 ft 6 inframe bar 7 ft 10 invalance 12 inCHECK THE PLAN (CBC 3105, 3201, 3202)1) Lowest: 94 in - 12 in = 82 in Need 84 in (7 ft): short 2 in2) Limit: 2/3 x 9 ft = 6 ft (72 in) Proposed 90 in: over by 18 in3) Post: 9 ft - 2 ft = 7 ft max out Proposed 7 ft 6 in: 6 in too farFix: valance 10 in (84 in clear)Fix: projection 6 ft, posts at 6 ftFabric: NFPA 701, or flame spread 25or less, or NFPA 286 (800 kW max peak)Exception: detached 1-2 family onlyDrain must not cross the walking surfaceRESULT: 10 in valance, 6 ft projection, posts at 6 ftSource: 2025 CBC 3105.2-3105.3, 3201.2, 3201.4, 3202.2.3, 3202.3.1; CSLB Get Licensed to Build, D-03.CC
The diagram for this lesson, exactly as it appears in the Learning Hub.

The first steps of this lesson

Step 1: What D-03 Installs and Which Code Applies

CSLB defines D-03 Awnings as installing, modifying or repairing aluminum, metal, vinyl or canvas awnings and patio covers, freestanding or attached to a structure; patio enclosures and carports are not included (CSLB, Get Licensed to Build, C-61 Limited Specialty Classifications, D-03). The 2025 California Building Code (CBC) section that governs the product is Section 3105 Awnings and Canopies. Where the awning hangs over a public sidewalk, CBC Chapter 32 Encroachments Into the Public Right-of-Way adds clearance and projection limits. Learn the two together: Section 3105 tells you what the awning is made of, Chapter 32 tells you where it may hang.

Step 2: Frame and Load Rule - CBC 3105.2

Awnings and canopies must be designed and built to withstand wind or other lateral loads and the live loads required by Chapter 16, with structural members protected to prevent deterioration. CBC 3105.2 says awning frames must be noncombustible material, fire-retardant-treated wood, heavy timber complying with Section 2304.11, or 1-hour construction. The awning may be fixed, retractable, folding or collapsible. An untreated lumber frame on a commercial storefront is not on that list.

The remaining 3 steps, the worked example and the quiz are in the course. This is a preview. The full lesson, with the step-by-step explanations, a worked example and a quick-check quiz, is inside the classroom.

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