Chapter 2 of 514% of exam

Preparation, Framing, and Layout

CSLB weights Preparation, Framing, and Layout at about 14%: job site readiness, managing materials, layout, metal framing and backing. This page is a short survey; the PrepPass C-9 Drywall study guide covers each statement with worked examples.

Ready for board

Board goes into a weather-protected building after the frame inspection, with blocking in place.

Weather protection
Board is not installed until weather protection is provided.
2025 CBC §2508.2.1
Stocking
Sheetrock is not stacked on edge unless secured; keep material 6 ft from hoistways and 10 ft from open exterior edges.
T8 CCR §1549

Framing and layout

Lay out from a fixed point so 48-inch board edges land on framing; rated walls go where the design says.

Steel framing width
At least 1-1/4 inches in the least dimension; nonload-bearing per AISI S220.
2025 CRC §R702.3.3
Fire barriers
Extend to the deck above and continue through ceiling spaces.
2025 CBC §707.5

Backing

Blocking for fixtures and accessories goes in before the board.

Grab bars
Bar, fasteners and supporting structure resist 250 lb at any point.
2025 CBC §11B-609.8
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