Designed for on-grade concrete applications where durable, fixed-height rebar support is required. Unlike standard alternatives, this product is optimized for its specific application to improve stability, efficiency, and placement accuracy. Combination Dobies are grooved concrete spacers designed to create a rebar cradle and provide multiple usable cover heights from a single unit. They help reduce inventory by allowing one brick to serve several cover dimensions in on-grade concrete applications.

Multiple cover heights in a single unit; grooves create a secure rebar cradle; standard 4000 PSI concrete with higher-strength options available; D.O.T. approved in most states; qualifies as a CRSI Class 1 Bar Support.

Grooved concrete spacer with multiple cover heights. Standard 4000 PSI concrete. Quantity per pallet ranges from 1,344 to 4,800 depending on SKU. Meets CRSI Class 1 Bar Support requirements.

CCD250 1 1/2 x 2 x 2 1/2; CCD300 2 1/2 x 3 x 3 1/2 x 4.

What are Combination Dobies used for? They support rebar in on-grade concrete while offering multiple cover heights from one spacer. How do they work? Built-in grooves create a cradle for the rebar and allow different orientations for different cover heights. What strengths are available? Standard 4000 PSI is available, with higher-strength options on request.