About CRSI Rebar Reference
QUICK REFERENCE! This ready reference app from the Concrete Reinforcing Steel Institute is a handy desk and field resource and includes information on ASTM standard reinforcing bars (rebar), standard hook details,...
QUICK REFERENCE! This ready reference app from the Concrete Reinforcing Steel Institute is a handy desk and field resource and includes information on ASTM standard reinforcing bars (rebar), standard hook details, standard stirrup/tie hook details, and ASTM reinforcing bar marking requirements. The app provides standard rebar specifications including sizes, diameters, areas and weights along with 90-, 135- and 180-degree hook details. Minimum yield and minimum tensile requirements per ASTM are also included. Industry standard bar markings for inch-pound rebar is illustrated for grades 40, 50, 60, 75, 80, 100 (A615), 100 (A1035), and 120. Links to the CRSI’s online resources are included.
Version History Minor bug fixing. 3.3.3 10/31/2025 Minor bug fixing. 3.3.2 10/29/2025 Minor Bug fixing. 3.3.1 10/15/2025 Minor bug fixes 3.3.0 06/18/2024 Minor bug fixing. 3.2.9 06/06/2024 Minor Bug Fixing. 3.2.8 04/17/2024 Bug Fixing and Ui Update. 3.2.7 04/14/2024 Bug fixing. 3.2.2 09/24/2023 Minor bug fixing. 3.2.1 07/14/2022 Minor bugs fixing. 3.1 12/29/2021 # Bug fixing. 3.0 03/10/2021 # Bug Fixing. 2.9 03/02/2021 # Minor updates and bug fixing. 2.8 02/18/2021 # Minor bug fixes. 2.7 06/25/2020 # Minor bug fixes. 2.6 06/24/2020 Development length modules are included that calculate tension and compression development and lap splice lengths for steel reinforcing bars in accordance with ACI 318-19 and the 8th edition of AASHTO. Included are (1) tension development and lap splice lengths for deformed bars, standard hooks, and headed deformed bars and (2) compression development and lap splice lengths for deformed bars. Users input bar size, steel yield strength, concrete strength, spacing, and other pertinent data and the modules output development and lap splice lengths along with the appropriate modification factors. 2.4 06/17/2020 *Minor Bug Fixes. 2.3 10/10/2019 Minor issues fixed. 1.0.2 09/26/2018 Minor issues fixed. 1.0.1 09/21/2018 1.0 08/14/2018
Previous Versions
Here you can find the changelog of CRSI Rebar Reference since it was posted on our website on 2023-06-26 23:25:08.
The latest version is 3.3.3 and it was updated on 2026-06-24 00:07:17. See below the changes in each version.
CRSI Rebar Reference version 3.3.3
Updated At: 2026-06-03
Changes: Version History Minor bug fixing. 3.3.3 10/31/2025 Minor bug fixing. 3.3.2 10/29/2025 Minor Bug fixing. 3.3.1 10/15/2025 Minor bug fixes 3.3.0 06/18/2024 Minor bug fixing. 3.2.9 06/06/2024 Minor Bug Fixing. 3.2.8 04/17/2024 Bug Fixing and Ui Update. 3.2.7 04/14/2024 Bug fixing. 3.2.2 09/24/2023 Minor bug fixing. 3.2.1 07/14/2022 Minor bugs fixing. 3.1 12/29/2021 # Bug fixing. 3.0 03/10/2021 # Bug Fixing. 2.9 03/02/2021 # Minor updates and bug fixing. 2.8 02/18/2021 # Minor bug fixes. 2.7 06/25/2020 # Minor bug fixes. 2.6 06/24/2020 Development length modules are included that calculate tension and compression development and lap splice lengths for steel reinforcing bars in accordance with ACI 318-19 and the 8th edition of AASHTO. Included are (1) tension development and lap splice lengths for deformed bars, standard hooks, and headed deformed bars and (2) compression development and lap splice lengths for deformed bars. Users input bar size, steel yield strength, concrete strength, spacing, and other pertinent data and the modules output development and lap splice lengths along with the appropriate modification factors. 2.4 06/17/2020 *Minor Bug Fixes. 2.3 10/10/2019 Minor issues fixed. 1.0.2 09/26/2018 Minor issues fixed. 1.0.1 09/21/2018 1.0 08/14/2018
CRSI Rebar Reference version 3.3.3
Updated At: 2025-10-31
Changes: Minor bug fixing.
CRSI Rebar Reference version 3.3.0
Updated At: 2024-06-18
Changes: Jun 18, 2024
Version 3.3.0
Minor bug fixes
CRSI Rebar Reference version 3.2.9
Updated At: 2024-06-06
Changes: Jun 6, 2024
Version 3.2.9
Minor bug fixing.
CRSI Rebar Reference version 3.2.8
Updated At: 2024-04-17
Changes: Apr 17, 2024
Version 3.2.8
Minor Bug Fixing.
CRSI Rebar Reference version 3.2.2
Updated At: 2023-09-24
Changes: Sep 24, 2023
Version 3.2.2
Bug fixing.
CRSI Rebar Reference version 3.2.1
Updated At: 2022-07-14
Changes: Jul 14, 2022
Version 3.2.1
Minor bug fixing.
Disclaimer
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