[HT1278]

What are the outside overall cabinet dimensions for the Servo Sealed Plus Cabinet dimensions?

The dimensions on the GR Research site state this: Dimensions   17 × 17 × 11 in, 20 × 20 × 12 in, 16 × 12 × 8 in

Also I ordered a flatpack for this cabinet, are there instructions that come with this cabinet?  Or are there cabinet designs/plans that I can use to also help with assembly?

[Hobbsmeerkat]

The information listed there is the shipping box for each individual box in the kit, not the size of the subwoofer itself.

17x17x10 is the woofer box
16x12x8 is the amplifier box
20x20x12 is the flatpak shipping box

Actual assembled size is:
15.75 x 15.75 x 17.25

[HT1278]

Thank you Hobbs.

Are there cabinet assembly instructions available?

I purchased the flatpack. 

[Hobbsmeerkat]

Product page in the lower description there's a link to the cabinet plans that should help
https://gr-research.com/product/sub-series-servo-sealed/