Word of caution. you get what you pay for. Free almost certainly means you will not find something that is purpose-built for your industry. More likely, you will need to adapt something similar for what you're looking for.
That said, the invoices start solution included with filemaker is usually a good place for small businesses to start since most businesses revolve around generating invoices for clients.
Google and the Made for FileMaker directory ( Search | Made for FileMaker ) both will net options if you search around.
Thanks I,m looking for estimating and job. Bag template as file maker will export to Xero so don't need accounting
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