You need to know your contractor is fully aware of what you need for your project.
1. Scope of works
It should clearly state exactly what your quote covers.
These may at times appear daunting, better to know all exclusions than to presume they are covered.
3. Wall Dimensions
Length and Height. Generally your would have a site diagram marked up with the walls clearly marked on it.
Steel - Steel size, Steel Type, Steel Protection. This will vary with wall height, proximity to corrosive atmosphere and bearing requirements. Steel quantities to be used in your project.
Sleepers - Length, width, concrete MPA, Quantity to be used in your project.
Concrete - Sluped aggregate size and Concrete strength, Quantity to be used in your project.
Drilling - Time allowed to drill your piers.
Backfill & Drainage - A description of the extent of backfill and drainage.
Any special notes, you or your estimator wish to convey to each other.
A quote or personal set out in t his manner discloses everything about your project and how it will be constructed. It will give you the opportunity to:
1. Understand how and what is being built.
2. Allow you to see if anything is missed.
3. Give you apples to compare with others, particularly in quanitites and wall dimensions.
Your contractor should follow you up to discuss any queries you have, any alternatives you wish to have priced and ofcourse all with the view of letting your contract to the best placed contractor, who you feel comfortable with.