Slab Bolsters

Slab Bolster

Slab Bolsters are used to support rebar and mesh at the proper elevation in concrete slabs. The legs are spaced 5” on-center and spot-welded to resist bending.

Product CodeDescriptionStandard Usage
SB22″H x 5’L Slab Bolster4″ Slabs
SB33″H x 5’L Slab Bolster6″ Slabs

Plastic Slab Bolster (Discontinuing When Sold Out)


  • Slab on grade with a plate
  • Slab on deck
  • Precast
  • Walls and above grade


  • Holds over 640 lbs per 1/4 sq inch (per lab testing)
  • Small feet make this slab bolster undetected in form work
  • Can be locked together for desired lengths
  • Non-corrosive, extremely durable
  • Up to 360 degree bend without breakage
  • Meets requirements and qualifies as a CRSI Class 1 Bar Support
Product CodeDescriptionBox Qty
SB1-1/21-1/2″ x 30″ Slab Bolster55