The contract should describe, in detail, the products to be used and how the work will be performed, i.e., size, color, who will be doing what work, amounts of materials provided, manufacturer model number, etc. There must be a detailed, written payment schedule in the contract.
How to draft a contract between two parties: A step-by-step checklist Know your parties. Agree on the terms. Set clear boundaries. Spell out the consequences. Specify how you will resolve disputes. Cover confidentiality. Check the legality of the contract. Open it up to negotiation.