diff --git a/examples/tests/unit_consistency_misc.nbt b/examples/tests/unit_consistency_misc.nbt
index 3a47d485..0ef62126 100644
--- a/examples/tests/unit_consistency_misc.nbt
+++ b/examples/tests/unit_consistency_misc.nbt
@@ -28,6 +28,10 @@ assert_eq(16 tablespoon, 1 cup)
 assert_eq(3 teaspoon, 1 tablespoon, 1e-5 teaspoon)
 assert_eq(1 floz, 2 tablespoon)
 assert_eq(1 hogshead, 63 gallon)
+assert_eq(1 board_foot, 144 inch³)
+assert_eq(12 board_foot, 1 ft³, 1e-9 ft³)
+assert_eq(1 BF, 1 board_foot)
+assert_eq(1 bf, 1 board_foot)
 assert_eq(1 rod, 16.5 foot)
 
 assert_eq(1 foot, 0.3048 meter, 1e-9 m)
diff --git a/numbat/modules/units/us_customary.nbt b/numbat/modules/units/us_customary.nbt
index 6d95c26d..cc760ec8 100644
--- a/numbat/modules/units/us_customary.nbt
+++ b/numbat/modules/units/us_customary.nbt
@@ -41,6 +41,11 @@ unit hogshead: Volume = 63 gallon
 @aliases(barrels)
 unit barrel: Volume = 42 gallon
 
+@name("Board foot")
+@url("https://en.wikipedia.org/wiki/Board_foot")
+@aliases(board_feet, BF: short, bf: short)
+unit board_foot: Volume = 144 in^3
+
 @name("US rod")
 @url("https://en.wikipedia.org/wiki/Rod_(unit)")
 @aliases(rods, perch)