Remove extra space in two-column form

I have created a two column form, but it has a lot of extra space to the right of each column. I have tried everything to get rid of this, but it won’t change. I have made adjustments to the table width, form width DIV’s and to the padding and table width settings within my theme’s style sheet.

Here is a link to the contact page where the form appears:
https://kmjindustrialcontractors.com/contact/

Here is a link to how I would like the form to appear:
https://kmjindustrialcontractors.com/wp-content/uploads/2017/02/2.jpg