General B Planning and Estimating Study Guide

Planning and Estimating is approximately 15% of the California General Building (B) exam. Prepare by connecting plans and specifications to scope, code compliance, field inspection, trade coordination, labor, equipment, and material quantities. The goal is to make a defensible project decision—not merely recognize construction vocabulary.

This guide follows the public CSLB examination outline. It does not reproduce confidential examination questions and is not legal, engineering, or estimating advice for a real project.

What CSLB lists in this section

  • Scope of work and code compliance
  • Identification and correction of design and construction errors
  • Shop drawings, plans, and specifications
  • Field inspection performance
  • Project coordination
  • Cost estimation for materials, equipment, and labor

How to study planning questions

Read the entire document chain

Practice distinguishing the roles of plans, details, schedules, specifications, shop drawings, inspection records, and written scope. When two sources appear to conflict, identify what must be clarified before work proceeds.

Translate drawings into work

For every plan exercise, identify dimensions, scale, assemblies, interfaces with other trades, required sequence, and the quantities that can be supported by the drawing.

Separate quantity from price

Estimate the physical quantity first, then account for the exercise's stated waste, labor, equipment, productivity, overhead, or profit assumptions.

Use field feedback

Study how an inspection result, unforeseen condition, or coordination conflict changes the plan. Avoid assuming that a field correction can be made without documenting and resolving the underlying issue.

A repeatable estimating workflow

  1. Define the exact scope and the unit being estimated.
  2. Read dimensions and notes from the correct drawing and stated scale.
  3. Convert all measurements to compatible units.
  4. Calculate the net quantity.
  5. Apply only the waste or productivity factor stated in the exercise.
  6. Check whether labor, equipment, overhead, profit, or tax is included or excluded.
  7. Perform a reasonableness check before selecting an answer.

Worked example: separate quantity from cost

A rectangular floor is 28 feet by 20 feet. Net area = 28 × 20 = 560 square feet. If the exercise explicitly requires 8% extra material, adjusted material = 560 × 1.08 = 604.8 square feet. If material costs $4.25 per square foot, material cost = 604.8 × $4.25 = $2,570.40.

The 8% factor and unit price belong only to this study example. The important sequence is net quantity, stated adjustment, then cost.

Common errors to catch

  • Using a detail scale for a different drawing or assuming a scale that is not stated
  • Mixing inches, feet, square feet, cubic feet, and cubic yards
  • Applying markup to the wrong subtotal
  • Counting a material twice because it appears in more than one view
  • Ignoring an opening, overlap, or stated waste allowance
  • Starting work when a scope or plan conflict still requires clarification

Planning and estimating checklist

  • I can explain the role of plans, specifications, details, schedules, and shop drawings.
  • I can identify the scope affected by a field or design discrepancy.
  • I convert units before calculating quantities.
  • I know the difference between direct cost, overhead, markup, and profit in a stated scenario.
  • I record every missed planning question in the matching official topic.

Continue your General B plan: return to the General Building exam guide and study schedule, then take the free General B practice test.

Official source

CSLB General Building (B) Examination Study Guide

Official outline reviewed October 13, 2026. Verify current requirements with CSLB.