This is a pair of preformed midsole board. Each pair includes a built‑in shank board specifically for high‑heel construction. It is sized to match the 3" heel blocks we offer, and is also compatible with other heel styles measuring approximately 7 cm (2.75–3.0 in). The board is cut for a pointed‑toe last by default but can be trimmed easily to produce a round‑toed shape.

Three predrilled holes at the heel seat allow you to secure the heel with screws; we offer screws that fit these holes correctly to ensure a proper, stable attachment.

Specific measurements:

37 - Heel-toe length 26cm, ball width 7.5cm, heel width 5cm

38 - Heel-toe length 26.5cm, ball width 7.7cm, heel width 5.1cm

39 - Heel-toe length 27cm, ball width 7.8cm, heel width 5.2cm

40 - Heel-toe length 27.8cm, ball width 8cm, heel width 5.3cm

41 - Heel-toe length 28.3cm, ball width 8.2cm, heel width 5.3cm

Inches

37 — approx. Women’s US 8 / Men’s US 6

- Heel-toe length 10.24 in, ball width 2.95 in, heel width 1.97 in

38 — approx. Women’s US 8.5 / Men’s US 6.5

- Heel-toe length 10.43 in, ball width 3.03 in, heel width 2.01 in

39 — approx. Women’s US 9 / Men’s US 7

- Heel-toe length 10.63 in, ball width 3.07 in, heel width 2.05 in

40 — approx. Women’s US 10 / Men’s US 8

- Heel-toe length 10.94 in, ball width 3.15 in, heel width 2.09 in

41 — approx. Women’s US 10.5–11 / Men’s US 8.5–9

- Heel-toe length 11.14 in, ball width 3.23 in, heel width 2.09 in