Recycled Rubber Dumbbell Mats in Bulk 4' x 6' x 3/8" – Ultimate RB Rubber (RB-4638)

Bulk Savings Quantities of 10, 20 and 50 mats
Mat Truing available for bulk purchases

4' x 6' x 3/8" Rubber Dumbbell Mats by Ultimate RB Rubber - Using rubber mats for dumbbell training is a reasonably affordable way to protect your floors at home or in your fitness studio if dumbbells are dropped while using a dumbbell bench. The 4' x 6' size provides a large enough space for impact and the 3/8" thickness will provide enough protection to wood and concrete floors for dumbbells weighing as much as 50 lbs. As a rule you never want to drop or throw dumbbells under any circumstance. There are techniques to use while dumbbell training that avoids this and makes your workout area safer, especially for other members in close proximity. But if it does happen a good set of rubber gym mats will protect your floors and your equipment from damage. Need dumbbell mats that can handle heavier weight impact than a 3/8" mat? Increase the thickness to 1/2" or even 3/4". 3/4" thick mats are used for weight lifting platforms and very heavy free weight areas in commercial gyms. All these can be found on the IRON COMPANY® website.

What type of fitness equipment is suitable for a 3/8" thick mat? - A 3/8" thick gym mat works well for light to moderate weight drop in homes, studios and clubs. Place them under weight benches, dumbbell racks and squat racks. Consistently heavy weight drops are not recommended for this thickness. As an example, if you're dropping 100 lb.+ dumbbells and performing Olympic barbell lifts such as deadlifts, consider one of our thicker mats such as a 3/4" to fully protect your floors and equipment.

Are there any other uses for a 3/8" rubber gym mat? - Absolutely. Believe it or not some people like to use them under their washer and dryer to absorb vibration and keep them from inching across the room. Besides that, recycled rubber mats made from crumb rubber and urethane are very resilient and even slip resistant when wet and can be used in the back of truck beds, on decks, on walkways, in horse trailers, etc. The applications are almost endless.

Using multiple 4' x 6' x 3/8" rubber mats to cover an entire floor:
For complete floor protection under your free weight and cardio equipment areas, recycled rubber gym equipment mats will do the job and then some. And since the mats are so big and heavy there is no need to use adhesive. Normally during the manufacturing process block mats are cut by hand, and are not always going to be exact dimensions in length and width, or have edges that are totally squared. In the case of a single mat or only a few mats, this is not generally noticeable. However, when multiple mats are laid side-by-side and end-to-end across a gym floor, the end user may experience small gaps here and there resulting from less precisely cut edges being positioned next to each other. These gaps can trap dust and dirt, and in general create a less than ideal visual appearance. In many livestock and other industrial applications where function outweighs aesthetics (such as horse stalls and machine shops) this does not matter. However, in a fitness setting (such as a crossfit box, commercial fitness center, or military base gym) where 4' x 6' or even 4' x 8' block mats are utilized as "jumbo" loose-lay tiles to cover a large surface area of flooring, a more finished look is often desired. In this bulk purchase scenario it is recommended to have the mats "trued" to actual size during manufacturing. The process of “truing” via sonic cutting puts the mats through a very precise method of production for exact sizing and sharp edges, allowing exact consistency from mat to mat and eliminating gaps and any other seam inconsistencies when installed. When requesting your flooring quote, let your IRON COMPANY® flooring sales rep know if your mats need to be trued.

Truing Upcharge: $3.00 per mat

  • 10 mats = $30.00 Truing Upcharge
  • 20 mats = $60.00 Truing Upcharge
  • 50 mats = $150.00 Truing Upcharge

Truing Lead Time: Please allow up to 4 weeks truing lead time prior to shipping since mats need to be custom produced to order and put through sonic cutting process

Have additional questions about these rubber mats or would you like a customized bulk discount quote? Call an IRON COMPANY® flooring specialist today at 1-888-758-7527 or email

Rubber Dumbbell Mat Bulk Buy Package Options:

  • (10) 4' x 6' x 3/8" Mats (good deal)
  • (20) 4' x 6' x 3/8" Mats (better deal)
  • (50) 4' x 6' x 3/8" Mats (best deal)


  • Available for purchase in multiples of (10) mats (minimum quantity for manufacturing press cycle)
  • Solid Black 4' x 6' x 3/8" Recycled Rubber Gym Mat (24 sq. ft. each)
  • Mats are straight cut with no bevel
  • Mats weight 2.0 lbs. per sq. ft. (48 lbs. each)
  • Made from resilient crumb rubber harvested from used car and truck tires
  • Flat surface on both sides
  • Non-porous and slip resistant
  • Impact resistant to withstand weight drop from free weights
  • Easy to clean with vacuum, broom or mop
  • Proudly Made in the USA
  • 5-Year limited warranty against manufacturer defects in material and workmanship
  • Recommended for free weight areas in home gyms, garage gyms, fitness studios and commercial gyms
  • NOT intended for extreme weight drop or to be used as a deadlifting mat
  • Estimated 4 weeks manufacturer production lead time prior to shipment
Click Here For Rubber Flooring Specifications

Other Applications for Recycled Crumb Rubber Gym Mats:

  • Weight Rooms
  • Locker Rooms
  • Ice Rinks
  • Spike Protection
  • Golf Course
  • Baseball Areas
  • In-Line Skating
  • Cardio Decks
  • Multi-Purpose Areas
  • Changing Areas
  • Truck Beds

⇒ For a SHIPPING QUOTE please contact one of our sales reps here

Shipping NOT Included
Ships via one of our various freight carriers on a wooden pallet. This delivery is considered a curbside delivery only and will be delivered to a location at your address that is acceptable for a tractor trailer at the drivers discretion. Customers are required to be home at the time of delivery to sign the delivery receipt. On most deliveries, customers will receive a 24-hour notification call and lift gate service. Lift gate service may not be available for large bulk mat orders if weight of pallet exceeds liftgate capacity.