I am custom building a home. The lumber allowance for framing in the contract was $115,000. I just got an email from my builder that, due to lumber costs increases, the actual cost came in $65,000 more than the allowance. The house is already framed. He did not come to me first to inquire if I wanted him to go ahead and purchase the materials given the high increase in costs. He did not give me the opportunity to make a decision as to whether or not I wanted to pause the building process until lumber was more reasonably priced. Now he is telling me I am fully responsible for the additional $65,000 which is a 56% increase over what is in the contract. Do I have any recourse here or do I have to eat this kind of added charge? It's a huge amount of money I was not expecting to spend.