TFG Companies

General Panel Corp

SIP Panel Installation

General Panel is a part of Perma R Products.  We have been making expanded polystyrene products in our Plants in Grenada, MS and Johnson City, TN since the 70's. We have been laminating SIPs and specialty panels used in timber frame buildings for over 30 years.


Our MS SIP Plant manufactures jumbo SIPs and has full CNC capacity.  We believe we can produce to the closest specification in the industry. In our TN Plant our focus is on the variety of skin materials and price. 


106 Perma R. Rd.
Johnson City, TN 37604
United States




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