I have a company building my pool. We also decided to add a new outdoor kitchen. Because we have to push the pool back 10 feet I received an invoice of $6384 for additional decking. That's 672 sq ft at$9 per. Isn't that a bit excessive? Problem I'm having is there are 2 types of decking regular and texture with the latter being more expensive at $3-$4 a sq ft. We don't even know which one it is and I'm being charged $9. Help?