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Marcy GS99 Dual Stack Home Multi Gym

Item #297492

Shipping Included

- Durable Steel Contruction

- Dual-Stack Design

- Adjustable Preacher Arm Curl Pad

- High & Low Pulley Systems

We will contact you within 2 business days for delivery within 5 business days from the date of your order (excluding weekends and bank holidays). Postcode restrictions may apply. Find out more in the Delivery & Returns Tab below

Your credit/debit card will be charged when your order is placed on this item.


The corner design of the GS99 is a fantastic space saver, whilst the dual station design enables two people to exercise at the same time. Two 65kg solid stacks target a shoulder and leg press on one side, and a chest press, pec dec and high/low pulley system on the other. This blend of exercise stations provides bountiful options for heavy compound and lighter isolation movements for your whole body.


As with all Marcy strength equipment quality is paramount, this gym has been designed to withstand heavy use so it needs components that are up to challenge. It uses 500mm thick steel, 10cm sealed bearing pulleys and 2000lbs tensile strength aircraft cables to ensure the GS99 feels safe, smooth and robust for years to come.



  • Dual-stack design allows two people to exercise at the same time
  • 2 x 65kg solid vinyl weight stack with selector pin
  • 14 weight plates, weight approx. 4.5kg each, for small incremental weight increases, selector plate on the top weighs 3kg
  • High pulley system that takes interchangeable gym attachments and Lat. bar holder
  • Low pulley system that takes interchangeable gym attachments
  • Independent chest press systems follow the body biomechanical alignment for a natural feel
  • Independent shoulder press has an adjustable seat height with a maximum resistance of 58kg
  • Independent pec, dec and arms have a 3-angle position, for increasing width and definition in the chest and rear shoulders
  • Leg extension pivot point follows natural biomechanics for correct motion
  • Preacher curl arm pad has 2 height adjustments for greater range of motion
  • Foam roller pads with high-density foam used on the leg extension
  • Clip on chains that can be used to adjust the length of the gym attachments
  • Seat pad station 1 is a fixed position, whereas seat pad station 2 is adjustable to 3 different heights
  • Exercise chart highlights popular exercises to cover all the major muscle groups



  • Compatible Floor Types: concrete, wood, mats and carpets
  • Resistant To: scratch, sweat, mildew, rust, tear and odour
  • Paint Finish: powder coated chip resistant finish
  • Upholstery: 2.5" thick box stitched padded upholstery for support and comfort
  • Cables: 2000lb tensile strength aircraft cables for long-lasting use
  • Pulleys: 4" pulleys with sealed ball bearings for ultra-glide feel
  • Guide Rods: solid steel 1" diameter
  • Maximum User Weight: 140kg
  • Assembled Dimensions: H 208 x W 182 x L 213 cm
  • Assembly Time: 9-11 hours


Gym Attachments Included:

  • Curved Lat. pull-down bar with multi-position anti-slip grips
  • Short straight bar with anti-slip grips
  • Single d-handle with foam grip
  • Ankle strap with Velcro adjustment


Weight Plate Increments:

  • Plate 1: 7.5kg
  • Plate 2: 12kg
  • Plate 3: 16.5kg
  • Plate 4: 21kg
  • Plate 5: 25.5kg
  • Plate 6: 30kg
  • Plate 7: 34.5kg
  • Plate 8: 39kg
  • Plate 9: 43.5kg
  • Plate 10: 48kg
  • Plate 11: 52.5kg
  • Plate 12: 57kg
  • Plate 13: 61.5kg
  • Plate 14: 65kg


Exercise Capabilities: 

  • Chest: chest press, pec dec, single-arm crossover, pullovers
  • Back: Lat. pulldown, seated row, reverse grip row, single-arm row
  • Shoulders: shoulder press, lateral raise, front raise, rear flyes, shrugs
  • Biceps: preacher arm curls, straight arm curls, high cable curls, close grip chin up pulldowns
  • Triceps: triceps pushdowns, single handle pulldowns, triceps extensions, kickbacks
  • Legs: leg press, leg curls, leg extensions and abductor extensions
  • Abs: cable woodchops, side raises, high pulley crunches

TypeHome Gym
Multi Gym
DimensionsH 208 x W 182 x L 213 cm
  •   This item will be delivered kerbside on a pallet. The pallet will need to be disposed of by the customer. Our carrier will contact you via phone, text or email.
  •   Public and Regional holidays may affect delivery lead times.
  •   Delivery times may vary in the event of adverse weather conditions.
  •   Please note that we are only able to deliver to the UK mainland, excluding Post Office boxes, BFPO and the following Scottish postcodes:
    AB, DD, IV, KW, PA20+, PH.
  •   Further postcode delivery restrictions might apply to this item.
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  •  If you wish to return an item, please view Costco's Return Policy.
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