CSLB exam preparation

C-27 Landscaping Contractor Exam Prep

Practice landscape planning, preparation, hardscape, irrigation, planting, maintenance, and safety.

About this exam

The current CXP C-27 question bank has 206 practice questions. Start with a free diagnostic to get a snapshot across landscape construction and maintenance topics.

The current C-27 guide applies to exams scheduled on or after July 1, 2026, and lists approximate section percentages. CXP's 115-question mock is a practice format, not an official exam item count.

  • Practice bank size: 206 questions
  • Mock exam size: 115 questions

Official CSLB study-guide topics

  • Planning and Estimating — Approximate exam percentage: 18%
  • Construction Preparation — Approximate exam percentage: 12%
  • Hardscape Installation — Approximate exam percentage: 21%
  • Drainage, Irrigation, Lighting, and Plant Installation — Approximate exam percentage: 21%
  • Maintenance and Repair — Approximate exam percentage: 11%
  • Safety — Approximate exam percentage: 17%

Exam topics and approximate weights: CSLB study guide.

Sample question

What is the total baseline material cost for a hardscaping project requiring 1,200 square feet of interlocking concrete pavers at $4.50 per square foot, and 15 tons of crushed aggregate base rock at $32 per ton?

  1. $5,880 materials total
  2. $6,360 materials total
  3. $6,120 materials total
  4. $5,400 materials total
Show answer and explanation

Correct answer: $5,880 materials total

Explanation: Calculate the paver cost: 1,200 sq ft × $4.50/sq ft = $5,400; calculate the aggregate cost: 15 tons × $32/ton = $480; add the two material costs: $5,400 + $480 = $5,880. California Business and Professions Code §7159 governs required home-improvement contract disclosures, but it does not alter this baseline material-cost calculation. The correct answer is $5,880; $5,400 omits the aggregate, $6,120 adds $720 instead of $480, and $6,360 adds $960 instead of $480.

The CXP prep module

Trade exam preparation for C-27 landscaping work.

  • A practice question bank and timed mock exam for this module.
  • A Readiness Score to track progress by topic.
  • Questions and explanations available in English and Spanish.

Individual module

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Start with a free diagnostic

Use the free diagnostic to find your starting point before choosing what to study.