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CSLB B-2 Residential Remodeling (Trade Exam) Exam Cheat Sheet (2026)

A free, printable CSLB B-2 Residential Remodeling (Trade Exam) exam cheat sheet: the 59 highest-yield points to know, grouped into 6 sections that follow the exam's content areas, each section with its published weight.

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  • The real CSLB B-2 Residential Remodeling (Trade Exam) exam: 210 minutes.
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  • 252 free CSLB B-2 Residential Remodeling (Trade Exam) practice questions on the same material, every one explained.
  • Last updated: November 2026.
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Planning and Estimating

15% of the exam
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Three trades
A contract must include three or more unrelated trades or crafts.· Bus. & Prof. Code §7057.5(b)(2)
No structural changes
No contracts for structural changes to load-bearing walls, footings, foundations, partitions or roof structures.· Bus. & Prof. Code §7057.5(c)(2)
Fixtures, not systems
Install or replace fixtures; make only minor alterations to systems; sub out system work.· Bus. & Prof. Code §7057.5(c)(3)
Asbestos
100 square feet or more of asbestos-containing material needs a C-22 license or asbestos certification.· Bus. & Prof. Code §7058.5
Exempt finish work
Painting, papering, tiling, carpeting, cabinets and counter tops need no permit.· 2025 CRC R105.2
Cutting a wall
Cutting away a wall or partition is not an ordinary repair.· 2025 CRC R105.2.2
Inspection order
Rough systems, frame, gypsum board before taping, then final.· 2025 CRC R109.1
No work past an inspection point
Work does not continue past an inspection point without approval.· 2025 CRC R109.4
Waste and rounding
Multiply area by one plus the waste percentage, divide by package coverage and round up.· CSLB study guide 13E-B2
Markup versus margin
A 25 percent markup is a 20 percent margin.· CSLB study guide 13E-B2
Roof area
Roof area is plan area times the slope factor; a square is 100 square feet.· CSLB study guide 13E-B2

Job Site Preparation

13% of the exam
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Bearing status
A wall that may be load bearing is treated as bearing until proven otherwise.· Bus. & Prof. Code §7057.5(c)(2)
Utilities
Utilities are shut off, capped or controlled before demolition.· 8 CCR 1735(a)
Dust
Use water or equivalent steps to control dust.· 8 CCR 1735(t)
Stud cuts
Notch bearing studs to 25 percent of depth and nonbearing to 40 percent; bore to 60 percent.· 2025 CRC R602.6
Removal order
Appliances, counter tops, base cabinets, wall cabinets.· Cabinet maker's guide
Toilet reset
Removal and reinstallation of a water closet without changing valves, pipes or fixtures is exempt.· 2025 CRC R105.2
Silica
Cutting stone creates respirable silica; PEL 50 micrograms per cubic meter.· 8 CCR 1532.3
Housekeeping
Keep debris with protruding nails cleared from work areas, passageways and stairs.· 8 CCR 1513(a)
Framing moisture
Do not enclose framing above 19 percent moisture.· CALGreen 4.505.3 (per city handout)
Flooring
Acclimate and check subfloor moisture per the maker's instructions.· Manufacturer instructions

Core Trades Remodeling

25% of the exam
Study →
Toilet space
30 inches wide (15 each side of the centerline) and 24 inches in front.· City handout (2025 CPC 402.5)
Shower
Mixing valve 120 degrees F maximum; stall 1,024 square inches and a 30-inch circle.· City handout (2025 CPC 408)
Kitchen receptacles
No point along the wall more than 24 inches from a receptacle; 20 inches maximum above the counter.· City handout (2025 CEC 210.52)
Bath exhaust
Tub or shower bath needs a fan; 50 cfm intermittent or 20 continuous.· 2025 CRC R325.2
Stud notches
25 percent (bearing) or 40 percent (nonbearing); bores 60 percent.· 2025 CRC R602.6
Joist notches
One-sixth depth, one-third length, not in the middle third.· 2025 CRC R502.8.1
Fireblocking
Vertically at floor and ceiling and horizontally at 10-foot intervals or less.· 2025 CRC R302.11
Under-stair closet
1/2-inch gypsum board.· 2025 CRC R302.7
Riser and tread
Riser 7-3/4 inches maximum; tread 10 inches minimum; 3/8-inch variation in a flight.· 2025 CRC R318.7.5
Handrail
34 to 38 inches high, on at least one side of four or more risers.· 2025 CRC R320.2, R318.7.8
Width and headroom
36 inches clear; 6 feet 8 inches headroom.· 2025 CRC R318.7.1, R318.7.2

Finish Trades Remodeling

18% of the exam
Study →
Layout lines
One maker draws the base line at 34-1/2 inches and the wall line at 54 inches above the floor's high point.· Cabinet maker's guide
Upper cabinets
30 inches minimum above a cooking top unless the maker requires more.· City handout (2025 CMC)
Tile coverage
80 percent in dry areas and 95 percent in wet and exterior areas.· ANSI A108 via Ceramic Tile Foundation
Minor repair
6 square feet or less per room inside and 20 outside, with no prohibited practice.· 40 CFR 745.83
Prohibited practices
Open-flame burning, high-speed machines without HEPA exhaust and heat guns at or above 1,100 degrees F.· 40 CFR 745.85
VOC
Paints, sealants and coatings meet the green building code's VOC limits.· CALGreen 4.504.2 (per city handout)
Hearth
Hearth 4 inches thick; extension 2 inches thick.· 2025 CRC R1001.9
Extension size
16 inches in front and 8 on each side; 20 and 12 for openings of 6 square feet or more.· 2025 CRC R1001.10
Mantel
No combustible mantel within 6 inches of the opening; 1/8 inch projection per inch within 12 inches.· 2025 CRC R1001.11

Exterior Remodeling

13% of the exam
Study →
Slope
2:12 minimum; double underlayment from 2:12 to 4:12.· 2025 CRC R905.2.2
Replacement
Remove existing layers down to the roof deck.· 2025 CRC R908.3
Fall protection
6 feet on slopes to 7:12; any height above 7:12.· 8 CCR 1731
Barrier
At least one layer behind the cladding, continuous to the top of the wall.· 2025 CRC R703.2
Vinyl siding
6 inches from the ground and 1/2 inch from adjacent surfaces.· 2025 CRC R703.3.1
Stucco
Three coats over metal lath; 48 hours moist between coats.· 2025 CRC R703.7
Escape opening
5.7 square feet net clear (5 at grade floor), 24 by 20 inches, sill 44 inches maximum.· 2025 CRC R319.2
Safety glazing
Doors, glazing within 24 inches of a door, large low panes, wet areas and stairs.· 2025 CRC R324.4
Egress door
32 inches clear width, 78 inches clear height.· 2025 CRC R318.2

Safety

16% of the exam
Study →
Tailgate meetings
At least every 10 working days.· 8 CCR 1509(e)
Heat
Shade above 80 degrees F; high-heat procedures at 95 and above, with a ten-minute rest every two hours.· 8 CCR 3395
Head protection
Meets ANSI/ISEA Z89.1.· 8 CCR 3381
Ladder
Rails 36 inches above the landing; foot one-quarter of the working length out.· 8 CCR 3276
Fall arrest
Required where exposure exceeds 7-1/2 feet; roofing 6 feet to 7:12.· 8 CCR 1670, 1731
Plank overhang
18 inches maximum without a barrier.· 8 CCR 1637(g)
Floor openings
25 percent of the floor area unless supports remain.· 8 CCR 1735(f)
Free-standing walls
More than one story or 12 feet high needs lateral bracing.· 8 CCR 1735(m)
Limits
Asbestos 0.1 f/cc; lead PEL 10 and action level 2; silica PEL 50 and action level 25.· 8 CCR 1529, 1532.1, 1532.3

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