Shipping fee (USPS) with max amount?

[dogpaw]

Please direct me to an appropriate Contrib if one exists although I've done searching.

 

 

My client's store wants to max out the shipping cost at a certain USPS shipping amount when the order total hits a certain dollar amount.

 

Is this possible?

 

For example, if the cart amount hits $85 in product, the shipping may be calculated by USPS at $10 but my client wants the ability to manually enter a max shipping fee of $8 (in the Admin) so that that one customer only pays $8 shipping max.

 

 

Thanks