Leg Press - Hack Squat Combo Machine

What is the measurement between shoulder pads for hack squat? As a smaller framed female, many at home hack squats just barely hit land on my shoulders.

Here are the measurements between the shoulder pads. We've also grabbed the outside length as well, to give you a better visual of it. Hope that helps!

Inside length is 8.5" apart. The length from outside to outside is 17". 

Do these come already assembled?

The Leg Press - Hack Squat Combo Machine does not come assembled, so assembly will be required. 

Is this designed for someone who is 5'2" to squat to depth? I was looking at another brand, and it was a common complaint that it wasn't accommodating to short people.

The CC-70, Leg Press/Hack Squat machine should be able to accommodate to your height. It does have additional lock out position, which you can adjust to your desired height (pictured below). The plate where you place your feet at [in the squat position] is also adjustable which can be adjusted to match your needs. 

I am 6'4" will I be able to use this as normal?

If the plate carriage is extended as high as it can go it gives you 55.5" from the shoulder pads to the foot plate. The guide rods give you 59" of movement on the CC-70.

Does this accept standard plates or only Olympic plates?

The CC-70 does allow for both standard and Olympic plates. If using standard plates just don't use the Oympic 2" sleeves.