Shoe size conversion charts

All Aluminum & Original Shaper® Shoes

Except OT, DS, ES & Alumaflite

(Hind Shoes are 1/2” Shorter in FIA Standard)

GC Size Approximate American Standard FIA Size in inches
4 000 12"
5 00 12 3/4"
6 0 13 1/4"
7 1 14"
8 2 14 3/4"
9 3 15 1/2"
10 - 16 1/4"
11 - 16 3/4"
12 - 17 1/2"
13 - 18 1/4"
14 - 19"

GCOT

Size FIA Standard
5 13"
6 13 3/4"
7 14 1/2"
8 15 1/2"
9 16 1/4"
10 17"

D&E Speed

Size FIA Standard
5 12 1/4"
6 13"
7 13 3/4"
8 14 1/4"
9 15"
10 16"

Flappers

Flapper Size Width Length
1 4 /1/2" 5 1/4"
2 5" 5 3/4"
3 5 1/4" 6 1/4"
4 5 3/4" 6 1/2"
5 6" 7"

Pads and devices

Stabilizer, Circuit Bars, Protector Plates, Peek A Boo, Gluz-On®, Scallion Plates, Solid Aluminum Pads

GC Size Width Length
5 4 3/4" 5 1/4"
6 5" 5 1/2"
7 5 1/4" 5 3/4"
8 5 1/2" 6"
9 5 3/4" 6 1/4"
10 6" 6 1/2"

Shaper RT (Regular Toe) Front

Size FIA Standard
5 13 1/16"
6 13 3/4"
7 14 1/2"

Shaper RT (Regular Toe) Hind

Size FIA Standard
5 12 11/16"
6 13 3/8"
7 14 1/8"
8 14 13/16"
9 15 1/2"
10 16 1/2"
11 17"
12 17 5/8"