On-Demand Course: Floor Openings in Two-Way Slabs

Price: $ 39.00 USD

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INSTRUCTIONS: Read and study the materials included in this module. Then, complete and pass the corresponding 10-question quiz with a score of 80% or higher to receive a certificate for 0.1 CEU (equivalent to 1.0 PDH). This online course is not approved for credit with the Florida Construction Industry Licensing Board (CILB).

Continuing Education Credit: 0.1 CEU (1 PDH)

Access Period: 30 days


This module is based on two articles from Concrete International magazine. The first, “Practical Design: A Supplement to Academics: Floor Openings in Two-Way Slabs,” is intended to assist design and construction professionals with making openings in two-way slabs. This includes selecting size and location of openings, how openings are created, and when to add strengthening. The second, “Detailing Corner: Reinforcing Bar Layout for Two-Way Slabs,” provides suggestions for good detailing practices.


Document Details

Publication Year: 2007


Categories: Slabs

Formats: Online Learning

Table of Contents

Learning Objectives:

1. Describe the differences between flat plates, flat slabs, and two-way beam-supported slabs;

2. Discuss the layout of two-way slabs;

3. Explain the differences between large and small openings; and

4. Recognize the methods available for strengthening, if needed.


Any applicable errata are included with individual documents at the time of purchase. Errata are not included for collections or sets of documents such as the ACI Collection. For a listing of and access to all product errata, visit the Errata page.

Return/Exchange Policy

Printed / Hard Copy Products: The full and complete returned product will be accepted if returned within 60 days of receipt and in salable condition. A 20% service charge applies. Return shipping fees are the customer’s responsibility.

Electronic /Downloaded Products & Online Learning Courses: These items are not eligible for return.

Subscriptions These items are not eligible for return.

Exchanges: Contact ACI’s Customer Services Department for options (+1.248.848.3800 – ACICustomerService@concrete.org).