MAMMOTH 54" Steel Frame In-Ground Basketball System

MAMMOTH 54" Steel Frame In-Ground Basketball System -
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$1299.99 $999.99 You Save $300.00 or 23%
Item # 12959314


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Product Details

The Lifetime® Mammoth 54" in-ground basketball system features a powder-coated steel frame and a tempered glass backboard with fade-resistant graphics, giving you the performance and look of a pro-style game. The Mammoth Pump™ height-adjustment mechanism easily adjusts from 7.5' to 10' in infinite height increments. The system also features a heavy-duty Spring-Flex™ rim with a wrap-around steel brace and a heavy-duty nylon net.

Key Specs:

  • Model Number: 90179
  • Backboard Shape: Rectangular / Square
  • Backboard Height: 36 inches
  • Backboard Size: 54 inches
  • Backboard Width: 54 inches
  • Thickness of Backboard : 2 inches
  • Basketball Backboard Material: Clear Tempered Glass
  • Rim Size: 5/8 Inch
  • All Weather Basketball Net: Yes
  • Pole Pieces : 1 Poles
  • Pole Size Square: 5 inches
  • Overhang from Pole: 35" Overhang
  • Adjustable Height Minimum: 7.5 ft
  • Adjustable Height Maximum: 10 ft
  • Mounting System: Anchor Bolt Mounting System
  • Backboard Warranty: Lifetime Limited




  • Rim: Spring Flex
  • Pole Shape: Square
  • Provides added strength
  • Powder Coat Finish: Yes
  • Protects against fading and weather.
  • Height Adjustment System: Mammoth Pump™
  • Triggerless height adjustment is easy for anyone to use.

Additional Info

  • Steel extension arms provide superior backboard support and plenty of room under the basket
  • 18" Spring-Flex™ rim made of 5/8" solid steel with wrap-around steel brace and 160g all-weather nylon net
  • One-piece 5" square pole located in the front of the anchor-plate to minimize wobble and pole vibration
  • Pole-anchoring system with a unique bolt-down design for precision leveling

Product Reviews


by PowerReviews
MAMMOTH 54" Steel Frame In-Ground Basketball System

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

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(18 of 18 customers found this review helpful)


Good compromise between quality & price

By Coach

from Fremont, CA

About Me Beginner


  • Durable
  • Easy To Use
  • Good Design
  • Quality Materials


    Best Uses

      Comments about MAMMOTH 54" Steel Frame In-Ground Basketball System:

      We were looking for a basketball system for our driveway and wanted something sturdy that wouldn't rattle or make a lot of noise when it hit the backboard. Unlike some of the other systems on display, the height adjustment is very smooth and easy to operate. I have had no problems with the height moving on its own.

      We were not planning on moving the system around so an in-ground system made sense. Since it was going to be on the side of the driveway, we also avoided the big base which allowed us to install it closer to the side, allowing more room (about 3 feet) for playing.

      There are many portable systems that cost a lot less. Like anything else, you will get what you pay for. The build of this system is very solid and we expect to get a lot more use out of this system over a portable one.

      This in-ground system is very sturdy since it is bolted to a 3 foot deep concrete footing. The tempered glass backboard does not shake (or make a lot of noise) when the ball hits it. Also, the height adjustment is extremely easy to operate.

      We had it installed by Sports Authority and they took care of pouring the concrete and installing everything. This adds to the cost of the system. If you are comfortable digging a hole and pouring a footing and placing rebars, you could save money by doing it yourself.

      The only downside to this product is that it costs more than portable systems so you need to decide if cost or function is more important.

      I'm pretty picky when it comes to sports equipment. Understanding that there are better systems out there that also cost more, we are very happy with the system because it is sturdy, quiet and durable at a cost slightly above a really good portable system.

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