Hercules 1-1/2" Rebar Chair - (50 Count) Superior Strength & Quality Concrete Snap Rebar Chair

911 chairs are great.. they are strong and hold up while you are pouring concrete and stay in place. Also i used them on wire mesh. I doubled tied them . Great product..

I chose these based mainly on price. I setup a 10x10 foot grid as a basis for securing pex tubing for radiant heating with a solar heater. With 3/8" rebar that I used, the connection to the chair is not completely secure, and I wound up wiring about half of the joints to make them less likely to come apart. Also, when I went to pour the concrete, I did not think I could pour from a wheelbarrow without disrupting the rebar matrix, so I went with a pump. The pump added about $200 to the cost of the pour but I was really happy with the process and the results.

Well thought out design

These are the rebar chairs. They are the best height for 4 or 6" pads. They are the most secure and stable. Believe me.....I spent way too much time trying to find the right rebar chairs. Once I got these, I took everything else back. They've got it figured out... And only them.

These were perfect. However the listing didn’t specify the quantity (50).

I would not ever use them again for anything under 5.5" thick. The Rebar is too close to the surface and we ended up removing them all for our cement that is 3.5" - 4.0" thick. I will use them for thicker cement though. I did like how they hold the Rebar.

These are excellent rebar chairs. We use them in footings, stem walls, and slabs. They hold the rebar very well and don't shift or move. We use them with 1/2" rebar.

Easy to use. The #4 rebar snapped easily into the chair in two directions. Made the job a snap to do. Was the right height for the concrete forms I was using.