Model # 124005

Internet #100577242

Pittsburgh Corning ProVantage Horizontal Spacers (4-Pack)

Discontinued Pittsburgh Corning

ProVantage Horizontal Spacers (4-Pack)

  • The spacers helped align the block and stabilizing the wall
  • Makes installing the 4 in. block very easy
  • Great for the do it yourselfer
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Frequently Bought Together

Product Overview

Utilize these Pittsburgh Corning ProVantage Horizontal Spacers (4-Pack) to provide consistent, evenly spaced joints in your glass block wall. The spacers align to keep blocks in place for ease of installation.

  • Spacers align the horizontal joints of a glass block panel to help ensure straight walls
  • Designed for use with the provantage installation system for installing 4 in. premier series glass block
  • Can be used for interior or exterior walls
  • PVC construction
  • Spacers align to provide evenly spaced joints and to hold glass block in place for easy assembly
  • Includes 4 spacers

Info & Guides

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Product Depth (in.)
Product Thickness (in.)
.25 in
Product Width (in.)


Product Weight (lb.)

Warranty / Certifications

Manufacturer Warranty
Pittsburgh Corning promises to replace any glass block accessories that are found to be defective within five years from date of purchase.

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Customer Questions & Answers

Area 72"x48" using 8x8 blocks how many packs of spacers needed?

Asked by: Winslow
My calculations disagree with the answer provided by Pittsburg Corning. It appears to me you would have 6 rows of blocks and 9 columns. The bottom 5 rows would have a horizontal spacer on top. Since the spacers are 40" long, you would need 2 of these to make 72". 5 x 2 => 10 horizontal spacers to just do the horizontal spacing, and you would have 5 left-over 8" pieces. If you were to cut more of the 40" horizontal spacers into 8" pieces to use for vertical spacing, you would need 8 * 48" = 48 8" pieces. You already have 5 of these 8" pieces. To make the remaining 43 8" pieces would require 9 more of the 40" horizontal spacers (since 9 x 40" / 8" = 45). So the total number of 40" horizontal spacers need to do the whole job is 19.
Answered by: SoundHomeExteriors
Date published: 2016-08-09

Can the horizontal spacers be cut to any size and used as vertical spacers?

Asked by: Rugrat
Yes, these spacers can be cut to size.
Answered by: CommunityAnswer
Date published: 2016-06-06

Are spacers available in non-white colors?

Do the spacers only come in white? Can I color them myself?
Asked by: Susanne
To the best of my knowledge the spacers only come in white. Once the glass block wall is built you really do not see the spacers. Since the sealant used to hold the glass blocks in place is not applied to the spacers, it would be possible to paint them. You would just need to be sure the paint used is compatible with the plastic used in the spacers. I do not know what plastic is used, but it appears to be ABS.
Answered by: parmodels
Date published: 2016-01-20

I have an area 46 inches high and 70.5 incheswide. How much room do the spacers take up and are there smaller size blocks that I could use as a trim.

I would like to use 8 inch blocks.
Asked by: joey
The ProVantage Horizontal and Vertical Spacers create a 1/8" joint. The closest nominal size panel you can create for a 701/2" x 46" opening is a 70"x46" using 6x6, 6x8 and 8x8" blocks. Your rough opening would be approx.69-1/2" x 46." 8x8" blocks would require a rough opening of 71-1/8" x 47-1/2". For panels using mixed sizes, we recommend laying a dry run of blocks and accessories to dterrmine an exact measurement.
Answered by: PittsburghCorning
Date published: 2016-03-06
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Customer Reviews

ProVantage Horizontal Spacers (4-Pack) is rated 5.0 out of 5 by 6.
Rated 5 out of 5 by from Useful for glass block projects Made a small, interior glass wall. The horizontal spacers helped both in keeping lines true and in stabilizing the wall.
Date published: 2012-01-31
Rated 5 out of 5 by from Spacers Seem to do the job and helped make it easy to build glass block wall
Date published: 2016-08-09
Rated 5 out of 5 by from Necessary for glass block installation Only need 1.5 out of the 4 pack. Unfortunately not sold as singles. This added to overall cost of project.
Date published: 2012-03-06
Rated 5 out of 5 by from keeps things in line and super easy to use Using this produce makes for an easy wall assembly and keeps things in line.
Date published: 2016-01-24
Rated 5 out of 5 by from The Provantage system makes building a glass block wall a breeze The complete Provantage system for constructing glass block walls is a great alternative to the traditional use of mortar to set the blocks. The horizontal spacers are part of the system and do a very good job of establishing the correct vertical spacing of each block row. They are easy to use and do the intended job.
Date published: 2016-01-19
Rated 5 out of 5 by from Ez install! Glass block installation is a breeze with these spacers and the channel system. Watch the video and it's easy!!!!
Date published: 2015-12-30
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