Most items ship by the next day. Every price posted.
Craig’s Concrete Spacers

Home / Products / Bolster chairs

Slab bolster chairs

All plastic slab bolster chairs for precast concrete. Rails link together for any length. The 24 inch rail is stackable and has family-invented snap points: break it to use one chair in 6, 12, 18 or 24 inch lengths. Most suppliers do not offer this.

  • Rails24 in stackable, 16 in on special order
  • Cover heights3/4 to 2-1/2 in
  • LengthLinks end to end
  • MaterialPlastic (HDPE)
  • Made inU.S.A., manufactured in Colorado

What it does

A bolster is a long rail that holds a row of bars at once. Linked rails run as far as the bed or slab does.

Without a rail the bars can sag between supports.

Used for Precast plants, Twin tee beds, Prestress debonding

Guides Rebar chair height chart, How to choose a chair

Download Cut sheet, PDF, 1 page

Sizes

6 sizes, each with its own part number and price. Add the ones you need to your quote. Shop all 36 sizes.

  • 3/4"

    Bolster chair, 24 in stackable rail, 3/4 in

    Code BC24.75

    3/4 in cover

    $77.00per carton $0.4813 each

    160 pieces per carton, 31 lb

  • 1"

    Bolster chair, 24 in stackable rail, 1 in

    Code BC241

    1 in cover

    $60.00per carton $0.5000 each

    120 pieces per carton, 27 lb

  • 1-1/4"

    Bolster chair, 24 in stackable rail, 1-1/4 in

    Code BC241.25

    1-1/4 in cover

    $50.00per carton $0.5000 each

    100 pieces per carton, 23 lb

  • 1-1/2"In stock

    Bolster chair, 24 in stackable rail, 1-1/2 in

    Code BC241.5

    1-1/2 in cover

    $49.00per carton $0.6125 each

    80 pieces per carton, 19 lb

  • 2"In stock

    Bolster chair, 24 in stackable rail, 2 in

    Code BC242

    2 in cover

    $42.00per carton $0.6562 each

    64 pieces per carton, 18 lb

  • 2-1/2"

    Bolster chair, 24 in stackable rail, 2-1/2 in

    Code BC242.5

    2-1/2 in cover

    $34.20per carton $0.7125 each

    48 pieces per carton, 15 lb

Prices

Prices are per carton. Shipping is not included in these prices. Overnight or 2 day shipping: call for pricing. Call 720-429-4999.

24 inch stackable bolster chairs, 1-1/2 and 2 inch sizes in stock
CoverPrice per cartonPieces per cartonWeight per cartonAdd to quote
3/4"
Code BC24.75
$77.00$0.4813 each16031 lb
1"
Code BC241
$60.00$0.5000 each12027 lb
1-1/4"
Code BC241.25
$50.00$0.5000 each10023 lb
1-1/2"
Code BC241.5
$49.00$0.6125 each8019 lb
2"
Code BC242
$42.00$0.6562 each6418 lb
2-1/2"
Code BC242.5
$34.20$0.7125 each4815 lb

16 inch bolster chairs are available on special order. Contact us for more information. Call 720-429-4999.

Print these prices Cut sheet, PDF, 1 page

Questions

What is the difference between the 16 and 24 inch rails?

The 16 inch rail comes in 1 to 2-1/2 inch heights. The 24 inch rail is stackable and has frangible points, so you can snap it to use one chair in 6, 12, 18 or 24 inch lengths, and it comes in 3/4 to 2-1/2 inch heights.

Which bolster sizes are in stock?

On the 24 inch rail, the 1-1/2 and 2 inch sizes are in stock. The 16 inch rail is special order only.

How long a run can I make?

Rails link together end to end for any length.

Why use a rail instead of single chairs?

A rail holds a row of bars at once, so the bars do not sag between supports.

How fast does it ship?

Most items are in stock and ship by the next day.

How much is shipping?

Shipping is not included in the carton prices. Overnight or 2 day shipping: call for pricing. Shipping and terms.

Can I order a few cartons for a small job?

Yes. Call 720-429-4999 or send the list on the quote page.

Do you offer a firefighter discount?

Yes. Firefighters get 10 percent off. Ask when you send your quote request.

How fast do you answer quote requests?

Usually within the day.

What are your hours?

We are open 7 am to 5 pm, 7 days a week, and we take business calls at any time.

Is there a price sheet I can print?

Yes. The cut sheet PDF for this product lists every size with its price, carton count and weight. The full catalog has all nine products.

Other chairs

Prices are per carton. Freight is not included.

White plastic snap-on rebar chairs in several heights, two clipped onto a steel rebar

Rebar chairs

  • Fits #3 to #6 bar
  • 3/4 to 3-1/2 in
  • 500 to 2,000 per carton

$75 to $165per carton

Stackable plastic rebar chairs nested in a pile with a flat base piece

Stackable/Architectural chairs

  • Fits #3 to #5 bar
  • 1-1/2 to 2-1/2 in
  • Separate base

$40 to $48per carton, base $14

Clear plastic caged rebar chairs on four legs, set under steel rebar

Caged/Architectural chairs

  • Fits #3 to #5 bar
  • 2, 3 or 4 in
  • 120 to 200 per carton

$36 to $48per carton

Need another size or a mix?

Get a quote