Insulating firebrick 230 × 114 × 64 mm (9 × 4.5 × 2.5 in) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/insulating-firebrick/  (CC BY 4.0)
Basis: Standard straight brick 9 × 4.5 × 2.5 in (230 × 114 × 64 mm), IFB 23 grade rated 1260 °C
Catalog version: 2026-10-20

Sizes: see table below
- A standard straight insulating firebrick is 230 × 114 × 64 mm (9 × 4.5 × 2.5 in); the file is a plain box at that size.
- IFB 23 grade is rated to 1260 °C.
- I use one under the burner on my engines.

brick  length_mm  width_mm  height_mm  max_temp_c
IFB straight  230  114  64  1260

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Wikipedia: Mesh (scale) — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Mesh_(scale)
- Wikipedia: Regenerative heat exchanger — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Regenerative_heat_exchanger
- Wikipedia: Steel wool — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Steel_wool
- McMaster-Carr: Wire cloth (free STEP per part, for your own design use; no redistribution) — STEP, PDF — McMaster-Carr site terms [verify license at link] — https://www.mcmaster.com/products/wire-cloth/
- Long Earth Society: Engine and rig builds — web, video — LES site — https://longearthsociety.com/engineering/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/insulating-firebrick/index.json
API: https://xemstudio.com/api/geometry?object=insulating-firebrick