ReBlocs
Rebar & Rewire Supports
"Tough As Concrete Itself"
P.O. Box 1293  Jasper, Ga. 30143
Rock Solid
Welcome to Rebar Chairs 101
Learn more about rebar chairs here than anywhere else.
It's OK, no one is born knowing the differences between rebar chairs. Here's a
lifetime of shared knowledge just for you.

Warning: Proper use of the information herein may lead you to form an
accurate conclusion. Failure to act upon this conclusion may lead you to
purchase the wrong product.
Proudly Made
In The U.S.A.!
At A Glance Comparison Chart
 
Crush/break
under the
weight of
concrete &
standing
feet
Cause
electrolysis
on the
rebar

(Rusting)
Melt or
severely
weaken
in the
hot sun
Puncture
the poly
membrane
when
stepped
on
Self
securing
with a
built
securing
feature
C.R.S.I.
Class
rating

1 is best
3 is worst
ReBlocs
Chairs
No
No
No
No
Yes
1
Double Rod
Chairs
Yes
Yes
No
Yes
No
3
Steel High
Chairs
No
Yes
No
Yes
No
3
Plastic
Chairs
Yes
No
Yes
Most Yes
Some No
Most Yes
Some No
1
Broken
Bricks
Sometimes
No
No
Yes
No
Not
Rated
Steel
Stake
No
Yes
No
It's driven
through
No
Not
Permitted
More Detailed Explanations
Double rod rebar chairs are very often used as rebar
supports. These are readily available at virtually all home
centers and lumber yards. This product is designed for
use in footings only,
not slabs. That's because footings
are never walked in, rather walked along side. You see, in
order to place concrete within a slab, the workers
must
walk on top of the rebar as they work the concrete into
place. This picture is exactly what happens to this product.
Broken bricks and other debris also are often used as
rebar supports also. The method has several problems.
First, the height is not consistent. Second, the rebar is not
secured to the broken brick allowing it to easily move
around or even fall off. Third, the irregular and pointed
shape of the base will likely poke a hole in the vapor
barrier. Finally, no engineer on earth would approve this
method. And neither should you.
This product, called a steel "high chair" is a product that's
made specifically for slabs also. However as you can see
here, it does not secure to the rebar and can be easily
tipped over.
But here's the real problem. This product
is made of steel and so is rebar. What happens when two
different steel materials are permanently placed in contact
with each other? They will rust. This is why you will never
see this product in D.O.T. projects.
Plastic materials have been introduced in recent years as
an innovative material of choice for rebar supports. The
manufacturers of these products can make these for just
pennies each, meaning they make big profits on you. But
what do you get. A material that will melt when left in the
hot sun. Plastic becomes extremely brittle when left in the
cold. Also, plastic, at cheap prices, can only be made so
strong. Vinyl siding or Hardi-plank? Same kind of choice.
Here's the worst possible approach. Nothing used at all.
Many contractors say they will lift the rebar up into the wet
concrete as they go.
Bologna. If the rebar starts out on
the ground, it will stay on the ground, guaranteed. Ask
anyone in foundation repair industry who has ever broken
up a failed slab where the rebar was found to be in the
slab. Using nothing is like throwing the money you spent
on the rebar right out the window! Avoid the temptation
to save a penny after spending all those dollars!
Here's The Solution!
ReBlocs, LLC
P.O. Box 1293
Jasper, Ga. 30143

Email:
sales@reblocs.com

Or call us at
1-800-947-1960

Office Hours:
Monday - Friday
8:00 a.m. to 6:00 p.m.
Eastern Time
Did You Know?
In order for a
rebar support to
work effectively,
it must be able to
withstand not
only the weight
of the rebar, but
also the weight
of the concrete
and someone
standing on top
of it without the
support crushing
or cutting
through the
vapor barrier.
Why?
That's because
the rebar WILL
get stepped on
during the
pouring
process. This is
where other
products fail
and/or cause
unintended
consequences.
If ReBlocs can hold up my 6,000 lb. truck and not fail,
Then they'll hold up your rebar, guaranteed!