How to Define Best Structure of Title Tag and Meta Description?

[CommercePundit]

I want to define best structure of Title Tag and Meta Description for my eCommerce website. There are too many categories over there and many be increase in near future.

There are 7K+ products live on website so, it's quite hard to develop Title Tag and Meta Description for all product pages. That's why I have set automatic Title Tag and Meta Description creation with help of developers.

I want to do similar stuff for my category pages. Can anyone suggest me structure of Title Tag and Meta Description which suppose to help me in well over Google's organic result.

I have define structure as follow.

Title Tag:

Category Name: FREE Shipping & Discount Category Name | Vista Stores

Meta Description:

Category Name with FREE shipping, 100% price guarantee, Buy and save 20% to 40% on attractive, modern and discount Category Name.

Meta Keywords:

Category Name

I also want to give real time example with specific URL. (http://www.vistastores.com/69_21/outdoor/patio-umbrellas.html)

Category Name = Patio Umbrellas so with help of above structure Title Tag and Meta Description will be as follow.

Title Tag:

Patio Umbrellas: FREE Shipping & Discount Patio Umbrellas | Vista Stores

Meta Description:

Patio Umbrellas with FREE shipping, 100% price guarantee, Buy and save 20% to 40% on attractive, modern and discount Patio Umbrellas.

Meta Keywords:

Patio Umbrellas

So, Does it matter for good performance? If any inputs in same direction so I am eager to read it.

[RyanKent]

How your tags are generated are not considered in any form. Your e-commerce solution can automatically generate the tags, or you can manually create them.

The content of the tags themselves are what's important, not how they are created.

[CommercePundit]

Oh great. BTW: Automatic Meta info creation will not mesh up my organic ranking. Right??

[RyanKent]

Meta Keywords should not be used at all. They offer absolutely no SEO value. It is simply extra HTML code which needs to be processed every time a page loads.

For the title tag, there are two considerations: ranking and CTR. From a pure ranking perspective, your title should be short and focus on unique keywords or phrases people will use to locate your page. Example: "Patio Umbrellas" or "Patio Umbrellas | Vista Stores".

From a CTR perspective "Free Shipping" is attractive, but I would recommend using that phrase as the first words of your meta description, not the title tag. Example of Meta Description: "FREE Shipping on Discounted Patio Umbrellas. 100% Price Guarantee!. Buy today and save 20-40% on attractive, modern Patio Umbrellas."