Look for the color RED for the best rebar chair on the market. Footer Stands. Offered in 2-bar and 3-bar option. Our Footer Stands make placing rebar in footings a breeze. The rebar securely snaps in and doesn't move when the concrete hits it. Our chairs provide a 3" ground clearance and 5" spacing between bars.2 and 3 Bar Foundation Chairs Bar Foundation Chairs are widely used to support rebar when pouring footers. They are simple to use, inexpensive, and convenient. As you see below, we have a 2-Bar and a 3-Bar manufacture from 12-gauge wire at 100 per box. 2-BAR 40 boxes / skid Georgia Rambo Created Date:Dec 24, 2020 · The quality of the rebar should be top-notch. It should be tested using different standardized tests. For small scale projects, #3, #4, and #5 bars are mostly used. This is because there is not a lot of load in those structures. For larger projects like tunnels and bridges, rebars of more than #5 are used.There are three different sizes of rebar which are needed for home projects i.e. #3, #4 and #5. The rebar size #3 is used for driveways and patios. For walls and columns, #4 rebar size should be used as they require more strength. It is better to use #5 rebar size for footers and foundations. The minimum yield strength of standard rebar is 60,000 psi in the USA. If the rebar is not properly placed then the strength of the concrete will be minimized.