Title: Identify types and sizes of block.
Course: Building Trades I (17009-I) > Section: Masonry: Laying Concrete Masonry Units

Identification must include the following (at a minimum):

- Nominal sizes—4, 6, 8, 10, 12 inches in width
- Special sizes and shapes
- Types—lightweight/cement

IRC: Chapters 4 (https://codes.iccsafe.org/content/IRC2018/chapter-4-foundations) and 6 (https://codes.iccsafe.org/content/IRC2018/chapter-6-wall-construction) explain structural components of masonry products allowed by code for residential construction along with the application and installation of approved products.

Process/Skill Questions:

- What materials are used to make block?
- What factors limit the use of various sizes of block?

NCCER Standards:

Core Curriculum: Introductory Craft Skills

- 00101-04 Basic Safety