I used the Jamb Patch products on a 35-year-old industrial building. Most of the frames where original and in excellent condition except for rust at the bottoms of the jambs. The 4" product was perfect as not all the frames had rusted enough to require the taller patch. Order fulfillment was prompt, much appreciated as many supplies were out of stock or delayed due to the pandemic.
The instructions were thorough and easy to understand. The
design is intuitive which makes installation simple and no special tools were needed.
I hope more facilities become familiar with the Jamb Patch and use it to repair their frames.