Only show cheapest shipping option?

Is it possible to only show the cheapest shipping option, both on shipping estimator and checkout?

Yes. Go to Admin/Modules/Shipping and remove the ones you dont want to show up.

Thanks but I guess I should explain a bit further.

I use two shipping options, per unit and free shipping options.

I have setup the free shipping options as a maximum shipping cost. When the customer has an order total of over £5.55, the shipping will always be £5.50. I have reworded this module accordingly.

However, both shipping methods display, even when the maximum delivery cost has been triggered. Someone told me after seeing this on the estimator that it's a bit confusing because they thought that they would have to pay both charges. Also, it doesn't make sense for the customer to choose between them at checkout.

So.. I just want to display the cheapest one, and have it selected as default so customer has no need to choose.

Oh sorry.. I can't help you. I am a total newbie and misread your post :blush:

It's ok..

I've just realised the table rate module does everything I need.