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Glued Laminated Appearance Grade

Glued Laminated Appearance Grade

Glued Laminated Appearance Grade

(OP)
The project is a church.  Ninety percent of the Glulam members are exposed.  Ten percent of the glulam members are concealed above a dropped ceiling, soffit or elsewhere.  

I am aware of (4) appearance grades:  Industrial, Industrial S, Architectural and Premium.  (What is "Industrial S"?)

I am specifying the Appearance Grade to be "Architectural".  Is there a cost benefit in specifying the concealed ten percent as Industrial, or is the cost savings little to nothing?

Thank you!

RE: Glued Laminated Appearance Grade

See link for Standard Appearance Grades for Structural Glued Laminated Timber, AITC-110 at:
https://www.aitc-glulam.org/shopcart/webitems.asp?category=design

Some of the savings for the 10% members not exposed is balanced by the risk of mixing locations.  Cost out the two options and decide.

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