On-Demand Course: Tolerance Considerations to Enhance Constructability

Price: $ 59.00 USD

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The contents of this course include 4 recorded presentations from the ACI 2022 Fall Convention:

1. Relevance of ACI 117 Vertical Tolerances for Tall Structures and Their Application; Eric Peterson, Webcor Builders

2. Planning for the Control of Construction Tolerances and Deflections; Eamonn Connolly, James McHugh Construction Co.

3. Design Tolerance Reality - How Tight Can We Really Measure Anyway; William Paul, BKF Engineers, Inc.

4. Tolerances that Control Void Form Construction; James Cornell, JN Cornell Associates, LLC

INSTRUCTIONS: 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 0.15 CEU (equivalent to 1.5 PDH). This online course is not approved for credit with the Florida Construction Industry Licensing Board (CILB).

Continuing Education Credit: 0.15 CEU (1.5 PDH)

Approved AIA and ICC

Access Period: 30 days


Early definition of construction tolerance expectations is an important step in the design process of a project. Designs should consider tolerances of all materials and systems for their integration into a constructable facility. This session presents case studies, best practices, and material tolerances for design strategies to best achieve a constructible structure. Presentations will include how vertical building tolerances effect other building tolerances of tall reinforced concrete buildings and cover and thickness tolerances of slabs placed on expansive soils using control void forms.


Document Details

Author: Peterson, Connolly, Paul, Cornell

Publication Year: 2023


Categories: Pavements, Tolerances, Walls

Formats: Online Learning

Table of Contents

Learning Objectives

• Describe tolerances of vertical concrete elements, such as columns and walls, for multi-story buildings that are found in ACI 117 and AISC publications.

• Explain potential solutions to achieve a buildable facility, when current ACI 117 tolerances for multi-story structures are in conflict with other building systems such as elevators or exterior enclosure, or other architectural floor plan items.

• Recall some surveying measurement challenges, such as determining the right datum point in a construction site and measuring location of proper job site datum under changing conditions.

• Identify critical, key components, such as slab thickness tolerances coordinated with reinforcing mat cover tolerances, of a reinforced concrete slab placed on expansive soil with void forms supporting the slab during construction.


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).

Quantity Discounts

This item qualifies for quantity discounts. Discounts are reflected in the shopping cart.
Quantity Discount
10 - 19 25%
20 - 49 35%
50+ copies 50%