Hi Tam,

Here is the information for the merge dividers

Your application will be different than the one shown below.
The pictures below are just to illustrate the dividers.
The lead time for these product is 2-3 weeks.
Shipping from merge most likely will be free, if over 5 dividers are ordered. 

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Echo-scape

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Sizes: 

48" Wide x 30"High  all prices include the manufacturers mounting brackets 
for your application, a custom riser will be necessary to add 6" lift
and get a 36" height per divider
local installation is not included in the price. (Once we know the total you need, I will see if we can get an extra discount)

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Echo-scape series
48"x30" $275 each  
48"x36" $360 each
24"x30" $175each

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Materials 

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Mounting Bracket Included

Additional Mounting Riser

The merge Panels will come with the bracket to hold the Panel
to achieve the desired configuration and height we need to add the following custom Riser
The final price is more than we expected (any made custom and local is expensive) 
$85 per set of 2.
or if you don't want he added height in between the beam and the divider panel
you can order a 36" Height divider panel.
There will be only about 1" clearance between the panel and the beam vs 6" with custom riser.
the price is the same $360 for a 48"x30" with 6" risers.
Or $360 with a 36" height divider and only 1" clearance between the panel and the beam.

These custom bracket will be powder coated to match as close as possible the existing beam
​or if you choose we can try to match the color of the merge bracket.