Description
Slab Bolsters (also known as Continuous Rebar Chairs or Rebar Bolsters) are designed to support lower-course reinforcing bars and welded wire mesh at the specified concrete cover height in slab-on-grade, elevated slabs, and precast concrete applications. Manufactured from high-tensile low-carbon steel wire with spot-welded legs spaced on 5″ centers, they provide stable, continuous support that resists bending under heavy rebar loads. Optional plastic-tipped or plastic-dipped feet protect formwork and vapor barriers from rust staining.
Slab Bolster Upperversions feature an additional bottom runner wire for supporting upper mat rebar or use on soft surfaces.
Typical Applications
- Slabs-on-grade (residential & commercial foundations)
- Elevated concrete decks & parking structures
- Bridge decks & precast panels
- Tilt-up wall panels
- Slabs on metal deck
| Item | Description |
|---|---|
| Product Name | Slab Bolster / Slab Bolster Upper |
| Material | Low Carbon Steel Wire (Q195/Q235), Bright Basic / Galvanized / Epoxy Coated |
| Height Range | 3/4″, 1″, 1-1/4″, 1-1/2″, 1-3/4″, 2″, 2-1/2″, 3″ … up to 5″ or 6″ |
| Length | 5 ft (1.5 m) standard; 10 ft (3.0 m) on request; short 2.5 ft / 30″ also available |
| Leg Spacing | 5″ OC (Slab Bolster); 2-1/2″ OC (Beam Bolster) |
| Wire Gauge | Legs: 6 GA (Ø4.88 mm) or 4 GA (Ø6.05 mm); Top Runner: 4 GA |
| Finish Options | Plain, Plastic Tipped, Plastic Dipped, Hot-Dip Galvanized, Epoxy Coated |
| Packing | 20 pcs/bundle, shrink-wrapped; palletized; boxed (short lengths) |
| HS Code | 7326.20 (if exporting from China) |
Packing & Shipping
- Bundled in 20 pcs per pack, strapped and palletized
- Custom logo stamping / OEM packaging available
- 20′ GP / 40′ HC container loading quantity available upon request
