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Polylok 1-1/4" x 44" Stacking Plastic Slab Bolster

Mfg#: 3063-L125
Product#: 5043063L125
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Concrete-Bolsters : The new Polylok Concrete Bolsters allows you more flexibility when stacking rebar. Our Concrete Bolsters are available in 20" and 44" lengths and can accommodate 3/4", 1", 1-1/4", 1-1/2", 1-3/4", 2", 2-1/4", 2-1/2", 2-3/4" and 3" heights. Our bolsters can easily be fastened together for longer lengths. Unlike any Concrete Bolsters on the market, the Polylok Concrete Bolsters can be stacked into a multi-level configuration, meeting specific height requirements. We are adding another quality product to our already extensive line of top quality rebar spacers.


  • Ends can be connected for additional lengths or for a round configuration
  • Stacking design allows for multiple rebar levels
  • Meets all requirements and qualifies as a CRSI Class 1 Bar Support
  • Connection points are designed to eliminate possible separation or buckling
  • Ideal for pouring precast, garage parking decks, tilt walls and other structures requiring additional rebar reinforcement


  • Leg Spacing: 4 in
  • Material: Polycarbonate
  • Finish: Gray
  • Cover Height: 1.25 in
  • Support Wire Length: 44
  • Series: 3063-L
  • Standards: CRSI Class 1
  • Type: Stackable
  • Usage: For Pouring Precast, Garage Parking Decks, Tilt Walls and Other Structures Requiring Additional Rebar Reinforcement