There are some estimations here as I haven't had all sizes of all models in stock and there have been some variations over time, particularly with pads, so don't panic if your measurements don't match. Below is how I've made measurements - but here's a doc from Ghost measured slightly differently.
Ghost base dimensions 
| | Bambino / 16" seat | Piccolo / 17" seat | Standard / 18" seat | | 15" | 16" | 17.5" | | 18" | 18.75 | 20" | | 11.5" | 11.5" | 11.5" |
|
| Ghost panel length | | Bambino panel | Piccolo panel | Standard panel | | 20" | 21" | 22" |
|
| |
| Ghost pad dimensions | | Piccolo pad | Standard pad | | Spine | 21.5" | 23" | | Under panels | 24" | 25" | | Q/Q flap length | 14" | 14" | | R/V flap length | 18" | 19" | | Torino flap length | 17" | 17.5" | | Torino flap width | 16" | 16" | | Uni flap length | 18.5" | 19" | | Uni flap width | 16.5" | 17.5" | Endurance flap
length | 14.25" | 14.25" |
|
| |
Ghost seat dimensions
| | Model | Bambino | Piccolo | Standard | | Roma | 19.5"
9.5"
17"
8" | 19.5"
10"
18"
9" | 20.5"
10.5"
19.5"
10.5" | | Veneto | 19.5"
10"
17"
8.5" | 19.5"
10.5"
18"
9.5" | 20.5"
11"
19.5"
11.5" | | Quilty | 13"
10"
17"
8" | 13"
10"
18"
9" | 13"
10.5"
19.5"
10.5" | | Quevis | 13"
10"
17"
8.5" | 13"
10"
18"
9.5" | 13"
10.5"
19.5"
11" | | Florac | 12.5"
8"
17"
~11" | 12.5"
8.25"
18"
~12" | 12.5"
8.5"
19.5"
~13" | | Italy | 19"
13"
17"
12.5" | 19.5"
13.5"
18"
12.5" | 20"
14"
19"
12.5" | | Lipica | 21"
10.5"
17"
10" | 21.5"
11"
18"
10" | 22"
11.5"
19.5"
12.5" | | Flamenco | 20"
12"
17"
11.5" | 20.5"
12.5"
18"
11.5" | 21"
13"
19.5"
11.5" | | Puro | 7.75"
NA
17"
~9" | 7.75"
NA
18"
~10" | 7.75"
NA
19"
~11" | | Puro Plus | 12.5"
NA
17"
~9" | 12.5"
NA
18"
~10" | 12.5"
NA
19"
~11" | | Torino | | 19"
13"
18"
9.75" | | | Western skirt | 22.5" | 23.5" | 25.5" |
|
 | Here are some flap lengths for the Iberian saddles.
Note, they are measured from the center line of
the seat. Aragona: 42cm / 16.5"
Galizia: 45cm / 18"
Navarro: 45cm / 18"
Picasso: 43cm / 17"
Porto: 43cm / 17"
Sierra: 43cm / 17"
Vaquera: 41cm / 16" |
Here's measurements just focusing on the space between the bottom of the cantle and the back of the thigh blocks - so you can see which models are roomier or tighter than others labeled the same size. You can measure the area your thigh needs by measuring as you sit on a saddle. It's hard to see, but I'm in the range of 9" sitting on a 16" Torino which is just a tad small.
Size/model | PuroPlus | Buttera | ButteraM | Quilty | Roma | Quevis | Veneto | Ferrara | Torino | Italy | Iberian |
16” | | | | 8” | 8” | 8.25” | 8.25” | 8.5” | 8.5” | | TBD |
17” | 7.5” | | 8” | 8.5” | 8.5” | 9” | 9” | 9” | 9” | 10.25” | TBD |
18” | 9” | 9.5” | | 9.75” | 9.75” | 10” | 10” | 10” | | | TBD |
