Designed for slab and foundation work where stable rebar positioning is essential. Unlike standard alternatives, this product is optimized for its specific application to improve stability, efficiency, and placement accuracy. On Grade Concrete Chairs are plastic rebar chairs designed for heavy-load, on-grade applications. Each chair provides two cover heights and features a wide, stable base with large spacing between the legs for easy tying, concrete flow, and easy-to-read size markers.

Cover heights from 1 1/2 inch to 6 1/4 inch; dual cover heights on each chair; strong, stable, and easy to tie to rebar; light and easy to carry; wide base for demanding on-grade applications.

Plastic on-grade chair with dual cover heights. Pack quantities range from 100 to 400; pallet quantities range from 2,400 to 7,200 depending on SKU. Made in the USA from 100 percent recycled material.

ON-GRADE150 1 1/2 to 1 3/4; ON-GRADE200 2 to 2 1/4; ON-GRADE250 2 1/2 to 2 3/4; ON-GRADE300 3 to 3 1/4; ON-GRADE350 3 1/2 to 3 3/4; ON-GRADE400 4 to 4 1/4; ON-GRADE450 4 1/2 to 4 3/4; ON-GRADE500 5 to 5 1/4; ON-GRADE550 5 1/2 to 5 3/4; ON-GRADE600 6 to 6 1/4.

What are On Grade Concrete Chairs used for? They support rebar in on-grade slabs and foundations. Do the chairs offer multiple cover heights? Yes, each chair provides two cover heights. What material are they made from? They are plastic and made in the USA from 100 percent recycled material.