Since its enactment in 1966, the Animal Welfare Act, along with enhancements introduced by the Improved Standards for Laboratory Animals Act of 1985, has significantly shaped animal care and research standards.
The ILAR Guide (Guide for the Care and Use of Laboratory Animals*) was established to support institutions and researchers in ensuring scientifically, technically, and humanely appropriate animal care.
Widely recognized as the industry benchmark, this guide is a primary reference for planning and conducting animal research in accordance with the highest scientific, ethical, and humane principles.
*Guide for the Care and Use of Laboratory Animals, Institute of Laboratory Animal Resources
In doing so, we advance animal care and research through innovative, high-quality housing and environmental control solutions. These solutions ensure the health, safety, and well-being of both animals and humans involved in laboratory settings.
Our product range reflects this commitment, encompassing:
Our experts can help ensure your facility meets the highest animal care and research standards.
Animals | Weight (g.) | Floor Area/Animal | Height | ||
sq. in. | sq. cm. | in. | cm. | ||
Mice | < 10 | 6 | 38.70 | 5 | 12.70 |
Up to 15 | 8 | 51.60 | 5 | 12.70 | |
Up to 25 | 12 | 77.40 | 5 | 12.70 | |
> 25 | ≤ 15 | ≤ 96.75 | 5 | 12.70 | |
Rats | < 100 | 17 | 109.65 | 7 | 17.78 |
Up to 200 | 23 | 148.35 | 7 | 17.78 | |
Up to 300 | 29 | 187.08 | 7 | 17.78 | |
Up to 400 | 40 | 258.00 | 7 | 17.78 | |
Up to 500 | 60 | 387.00 | 7 | 17.78 | |
> 500 | ≤ 70 | ≤ 451.50 | 7 | 17.78 | |
Hamsters | < 60 | 10 | 64.50 | 6 | 15.24 |
Up to 80 | 13 | 83.85 | 6 | 15.24 | |
Up to 100 | 16 | 103.20 | 6 | 15.24 | |
> 100 | ≤ 19 | ≤ 122.56 | 6 | 15.24 | |
Guinea Pigs | ≤ 350 | 60 | 387.00 | 7 | 17.78 |
> 350 | ≤ 101 | ≤ 651.45 | 7 | 17.78 | |
From the Guide for the Care and Use of Laboratory Animals*, Institute of Laboratory Animal Resources, Commission on Life Sciences, National Research Council, National Academy Press, Washington, D.C. 1996.
(a) From cage floor to cage top.
(b) Larger animals might require more space to meet the performance standards (*refer to the Guide text).
To order a copy, call toll-free 1-800-624-6242 or 202-334-3313 in the Washington metropolitan area. You may also fax 202-334-2451 or write to NATIONAL ACADEMY PRESS, 2101 Constitution Avenue NW, Lockbox 285, Washington, D.C. 20055. International customers, please contact National Academy Press for export prices and ordering information.
You can also download the eighth edition online.
We recognize that the well-being of personnel, animals, facilities, and the broader industry depends on collective actions grounded in ethical practices. By delivering solutions that align with today’s standards, we aim to contribute to a healthier, more sustainable tomorrow—for all.
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