Northeastern Products

Bedding: Northeastern Products

Premium Lab Bedding Since 1955

Northeastern Products pioneered the use of wood fiber-based products for contact bedding in laboratory research and has been an accredited supplier to the NIH for over 40 years.

The experience and expertise gained by 60+ years of manufacturing wood beddings has enabled Northeastern Products to revise and continually improve its methods, facilities and techniques. Wood fiber beddings are held to the highest standard in the industry and Northeastern Products products consistently meet these standards.

All Northeastern Products’ wood fiber beddings are processed from debarked, virgin logs that have not been exposed to chemicals or fertilizers through their life cycle. The raw material is obtained from primary lumber mills to eliminate the possibility of any chemical treatments or additives to the wood.

All equipment used in the transport and manufacture of wood beddings is dedicated to this purpose, ensuring an unadulterated, consistent end product. The process is a closed system which reduces the possibility of contamination, and all facets are continually monitored.

Heat treatment to 800°F reduces bacteria and dehydrates the product, which enhances absorbency and shelf life of the bedding. And careful sifting and aspiration ensures a clean and dust-free end product.

Wood bedding remains the most cost-effective product on a cost-per-cage basis. A variety of configurations of wood beddings in either chip or shaving form is available for almost any contact application. All beddings are packaged in autoclavable bags and can be safely sterilized.


Alpha Chip ® , Aspen Chip and Beta Chip ®

Alpha Chip, Aspen Chip and Beta Chip are processed from virgin wood to create a comfortable habitat with a natural appearance that is compatible with all small animals, including transgenic breeds. These small chips bedding are heat-treated to reduce bacteria and enhance absorbency and aspirated to remove dust. With its proven track record of superior performance, the free-flowing chips are compatible with most bedding dispensers and are ideal bedding for ventilated rack systems.

Alpha Chip

Contact Bedding Processed from Virgin White Pine Chips

  • Heat-treated to reduce bacteria and enhance absorbency
  • Proven track record of superior performance
  • Free-flowing chips are compatible with most bedding dispensers
  • Aspirated to remove dust
  • Regular changing prevents the development of ammonia
  • Creates a comfortable habitat with a natural appearance
  • Ideal bedding for Ventilated Rack Systems


Raw Material

  • Virgin, Debarked Northern White Pine Softwood


Standard Particle Size

  • Less than 15% retained on a #8 ASTM Sieve
  • Less than 6% passes a #25 ASTM Sieve
  • Moisture Content — 9 ± 3%


Package Size

  • 2.5 Cubic Feet


Package Type

  • Heat-sealed, two-ply autoclavable paper bag
  • All bags are production date coded for inventory control


Laboratory Analysis

  • Performed annually; results are available upon request
  • Consistently meets or exceeds industry standard contaminant specifications for contact bedding
Info Sheet

Aspen Chip

Contact Bedding Processed from Virgin Aspen Hardwood Chips

  • Compatible with all small animals, including transgenic breeds
  • Heat-treated to reduce bacteria and enhance absorbency
  • Proven track record of superior performance
  • Free-flowing chips are compatible with most bedding dispensers
  • Aspirated to remove dust
  • Regular changing prevents the development of ammonia
  • Creates a comfortable habitat with a natural appearance
  • Low density hardwood produces easy-to-handle package
  • Ideal bedding for Ventilated Rack Systems


Raw Material

  • Virgin, Debarked Aspen Hardwood


Standard Particle Size

  • Less than 15% retained on a #8 ASTM Sieve
  • Less than 6% passes a #25 ASTM Sieve
  • Moisture Content — 9 ± 3%


Package Size

  • 2.5 Cubic Feet


Package Type

  • Heat-sealed, two-ply autoclavable paper bag
  • All bags are production date coded for inventory control


Laboratory Analysis

  • Performed annually; results are available upon request
  • Consistently meets or exceeds industry standard contaminant specifications for contact bedding
Info Sheet

Beta Chip

Contact Bedding Processed from Virgin Hardwood Chips

  • Compatible with all small animals, including transgenic breeds
  • Heat-treated to reduce bacteria and enhance absorbency
  • Proven track record of superior performance
  • Free-flowing chips are compatible with most bedding dispensers
  • Aspirated to remove dust
  • Regular changing prevents the development of ammonia
  • Creates a comfortable habitat with a natural appearance
  • Ideal bedding for Ventilated Rack Systems


Raw Material

  • Virgin, Debarked Maple, Beech, Birch or Poplar, Individually or Mixed


Standard Particle Size

  • Less than 15% retained on a #8 ASTM Sieve
  • Less than 6% passes a #25 ASTM Sieve
  • Moisture Content — 9 ± 3%


Package Size

  • 2.5 Cubic Feet


Package Type

  • Heat-sealed, two-ply autoclavable paper bag
  • All bags are production date coded for inventory control


Laboratory Analysis

  • Performed annually; results are available upon request
  • Consistently meets or exceeds industry standard contaminant specifications for contact bedding
Info Sheet

Aspen Shavings and Pine Shavings

Aspen Shavings and Pine Shavings contact enhancement beddings are processed from virgin wood to create a comfortable habitat with a natural appearance that is compatible with all small animals, including transgenic breeds. These high-performing light shavings create a pillowed type of bedding that is heat-treated to reduce bacteria and enhance absorbency. It is aspirated to remove dust and the shavings are compatible with most bedding dispensers and are ideal bedding for ventilated rack systems.

Shredded Aspen Shavings

Contact Bedding Processed from Virgin Aspen Hardwood

  • Compatible with all animals, including transgenic breeds
  • Heat-treated to reduce bacteria and enhance absorbency
  • Proven track record of superior performance
  • Shredded variety is particularly suited for nesting and animal enrichment
  • Aspirated to remove dust
  • Regular changing prevents the development of ammonia
  • Creates a comfortable habitat with a natural appearance
  • Proven performance for micro-isolator cage systems


Raw Material

  • Virgin, Aspen Hardwood


Standard Particle Size

  • Less than 5% retained on a one inch x one inch screen
  • Less than 3% passes a #20 ASTM Sieve
  • Moisture Content — 9 ± 3%


Package Size

  • 8.0 Cubic Feet loose, compressed to 2.6 cubic feet


Package Type

  • Two-ply autoclavable paper bag
  • All bags are production date coded for inventory control


Laboratory Analysis

  • Performed annually; results are available upon request
  • Consistently meets or exceeds industry standard contaminant specifications for contact bedding
Info Sheet

Laboratory Grade Aspen Shavings

Contact Bedding Processed from Virgin Aspen Hardwood

  • Compatible with all animals, including transgenic breeds
  • Heat-treated to reduce bacteria and enhance absorbency
  • Proven track record of superior performance
  • Shredded variety is particularly suited for nesting and animal enrichment
  • Aspirated to remove dust
  • Regular changing prevents the development of ammonia
  • Creates a comfortable habitat with a natural appearance
  • Proven performance for micro-isolator cage systems


Raw Material

  • Virgin, Aspen Hardwood


Standard Particle Size

  • Less than 5% retained on a one inch x one inch screen
  • Less than 3% passes a #20 ASTM Sieve
  • Moisture Content — 9 ± 3%


Package Size

  • 8.0 Cubic Feet loose, compressed to 2.6 cubic feet


Package Type

  • Two-ply autoclavable paper bag
  • All bags are production date coded for inventory control


Laboratory Analysis

  • Performed annually; results are available upon request
  • Consistently meets or exceeds industry standard contaminant specifications for contact bedding
Info Sheet

Laboratory Grade Pine Shavings

Contact Bedding Processed from Virgin White Pine Softwood

  • Compatible with all small, medium and large animals
  • Heat-treated to reduce bacteria and enhance absorbency
  • Proven track record of superior performance
  • Aspirated to remove dust
  • Regular changing prevents the development of ammonia
  • Creates a comfortable habitat with a natural appearance


Raw Material

  • Virgin, Debarked Northern White Pine


Standard Particle Size

  • Less than 5% retained on a one inch x one inch screen
  • Less than 3% passes a #20 ASTM Sieve
  • Moisture Content — 9 ± 3%


Package Size

  • 8.0 Cubic Feet loose, compressed to 2.6 cubic feet


Package Type

  • Two-ply autoclavable paper bag
  • All bags are production date coded for inventory control


Laboratory Analysis

  • Performed annually; results are available upon request
  • Consistently meets or exceeds industry standard contaminant specifications for contact bedding
Info Sheet

Irradiated Bedding

Irradiated Bedding is sterilized contact bedding that is processed from virgin hardwood. It is available in Aspen Chip and Aspen Shavings’ varieties. The Irradiation dosage is 15 kGy minimum internal dose. All product receives a lot number and is sent for sterilization. Irradiation sterilization indicators, which have been placed on all packages, will turn from yellow/orange to red. A certificate of Irradiation is available for all lots and double-walled packaging preserves sterility of inner contents.

For more information, contact ASAP or visit  Northeastern Products .

Have questions about the right bedding for your animals? Contact us! 215-804-0144
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