diff --git a/src/api/lovr.h b/src/api/lovr.h
index 358ec614..ecd0b3e4 100644
--- a/src/api/lovr.h
+++ b/src/api/lovr.h
@@ -14,6 +14,7 @@ int l_lovrPhysicsInit(lua_State* L);
 int l_lovrTimerInit(lua_State* L);
 
 extern const luaL_Reg lovrAudio[];
+extern const luaL_Reg lovrBoxShape[];
 extern const luaL_Reg lovrController[];
 extern const luaL_Reg lovrBlob[];
 extern const luaL_Reg lovrBody[];
@@ -27,6 +28,7 @@ extern const luaL_Reg lovrMesh[];
 extern const luaL_Reg lovrModel[];
 extern const luaL_Reg lovrPhysics[];
 extern const luaL_Reg lovrShader[];
+extern const luaL_Reg lovrShape[];
 extern const luaL_Reg lovrSkybox[];
 extern const luaL_Reg lovrSource[];
 extern const luaL_Reg lovrSphereShape[];
diff --git a/src/api/physics.c b/src/api/physics.c
index 048480bb..f9056826 100644
--- a/src/api/physics.c
+++ b/src/api/physics.c
@@ -8,7 +8,8 @@ int l_lovrPhysicsInit(lua_State* L) {
   luaL_register(L, NULL, lovrPhysics);
   luax_registertype(L, "World", lovrWorld);
   luax_registertype(L, "Body", lovrBody);
-  luax_extendtype(L, "Shape", "SphereShape", lovrSphereShape);
+  luax_extendtype(L, "Shape", "SphereShape", lovrShape, lovrSphereShape);
+  luax_extendtype(L, "Shape", "BoxShape", lovrShape, lovrBoxShape);
 
   map_init(&ShapeTypes);
   map_set(&ShapeTypes, "sphere", SHAPE_SPHERE);
@@ -37,9 +38,18 @@ int l_lovrPhysicsNewSphereShape(lua_State* L) {
   return 1;
 }
 
+int l_lovrPhysicsNewBoxShape(lua_State* L) {
+  float x = luaL_optnumber(L, 1, 1.f);
+  float y = luaL_optnumber(L, 2, x);
+  float z = luaL_optnumber(L, 3, x);
+  luax_pushtype(L, BoxShape, lovrBoxShapeCreate(x, y, z));
+  return 1;
+}
+
 const luaL_Reg lovrPhysics[] = {
   { "newWorld", l_lovrPhysicsNewWorld },
   { "newBody", l_lovrPhysicsNewBody },
   { "newSphereShape", l_lovrPhysicsNewSphereShape },
+  { "newBoxShape", l_lovrPhysicsNewBoxShape },
   { NULL, NULL }
 };
diff --git a/src/api/types/shapes.c b/src/api/types/shapes.c
index e27c9e62..fe114081 100644
--- a/src/api/types/shapes.c
+++ b/src/api/types/shapes.c
@@ -163,20 +163,7 @@ int l_lovrShapeSetMask(lua_State* L) {
   return 0;
 }
 
-int l_lovrSphereShapeGetRadius(lua_State* L) {
-  SphereShape* sphere = luax_checktype(L, 1, SphereShape);
-  lua_pushnumber(L, lovrSphereShapeGetRadius(sphere));
-  return 1;
-}
-
-int l_lovrSphereShapeSetRadius(lua_State* L) {
-  SphereShape* sphere = luax_checktype(L, 1, SphereShape);
-  float radius = luaL_checknumber(L, 2);
-  lovrSphereShapeSetRadius(sphere, radius);
-  return 0;
-}
-
-const luaL_Reg lovrSphereShape[] = {
+const luaL_Reg lovrShape[] = {
   { "getType", l_lovrShapeGetType },
   { "getBody", l_lovrShapeGetBody },
   { "setBody", l_lovrShapeSetBody },
@@ -192,7 +179,49 @@ const luaL_Reg lovrSphereShape[] = {
   { "setCategory", l_lovrShapeSetCategory },
   { "getMask", l_lovrShapeGetMask },
   { "setMask", l_lovrShapeSetMask },
+  { NULL, NULL }
+};
+
+int l_lovrSphereShapeGetRadius(lua_State* L) {
+  SphereShape* sphere = luax_checktype(L, 1, SphereShape);
+  lua_pushnumber(L, lovrSphereShapeGetRadius(sphere));
+  return 1;
+}
+
+int l_lovrSphereShapeSetRadius(lua_State* L) {
+  SphereShape* sphere = luax_checktype(L, 1, SphereShape);
+  float radius = luaL_checknumber(L, 2);
+  lovrSphereShapeSetRadius(sphere, radius);
+  return 0;
+}
+
+const luaL_Reg lovrSphereShape[] = {
   { "getRadius", l_lovrSphereShapeGetRadius },
   { "setRadius", l_lovrSphereShapeSetRadius },
   { NULL, NULL }
 };
+
+int l_lovrBoxShapeGetDimensions(lua_State* L) {
+  BoxShape* box = luax_checktype(L, 1, BoxShape);
+  float x, y, z;
+  lovrBoxShapeGetDimensions(box, &x, &y, &z);
+  lua_pushnumber(L, x);
+  lua_pushnumber(L, y);
+  lua_pushnumber(L, z);
+  return 3;
+}
+
+int l_lovrBoxShapeSetDimensions(lua_State* L) {
+  BoxShape* box = luax_checktype(L, 1, BoxShape);
+  float x = luaL_checknumber(L, 2);
+  float y = luaL_checknumber(L, 3);
+  float z = luaL_checknumber(L, 4);
+  lovrBoxShapeSetDimensions(box, x, y, z);
+  return 0;
+}
+
+const luaL_Reg lovrBoxShape[] = {
+  { "getDimensions", l_lovrBoxShapeGetDimensions },
+  { "setDimensions", l_lovrBoxShapeSetDimensions },
+  { NULL, NULL }
+};
diff --git a/src/luax.c b/src/luax.c
index b7a9af90..88c9aa04 100644
--- a/src/luax.c
+++ b/src/luax.c
@@ -71,13 +71,17 @@ void luax_registertype(lua_State* L, const char* name, const luaL_Reg* functions
   lua_pop(L, 1);
 }
 
-void luax_extendtype(lua_State* L, const char* base, const char* name, const luaL_Reg* functions) {
+void luax_extendtype(lua_State* L, const char* base, const char* name, const luaL_Reg* baseFunctions, const luaL_Reg* functions) {
   luax_registertype(L, name, functions);
   luaL_getmetatable(L, name);
 
   lua_pushstring(L, base);
   lua_setfield(L, -2, "super");
 
+  if (baseFunctions) {
+    luaL_register(L, NULL, baseFunctions);
+  }
+
   lua_pop(L, 1);
 }
 
diff --git a/src/luax.h b/src/luax.h
index 68aa6131..6a44aac5 100644
--- a/src/luax.h
+++ b/src/luax.h
@@ -26,7 +26,7 @@
 
 int luax_preloadmodule(lua_State* L, const char* key, lua_CFunction f);
 void luax_registertype(lua_State* L, const char* name, const luaL_Reg* functions);
-void luax_extendtype(lua_State* L, const char* base, const char* name, const luaL_Reg* functions);
+void luax_extendtype(lua_State* L, const char* base, const char* name, const luaL_Reg* baseFunctions, const luaL_Reg* functions);
 int luax_releasetype(lua_State* L);
 int luax_getobject(lua_State* L, void* object);
 void luax_registerobject(lua_State* L, void* object);
diff --git a/src/physics/physics.c b/src/physics/physics.c
index dd6d4b7d..792d0d28 100644
--- a/src/physics/physics.c
+++ b/src/physics/physics.c
@@ -359,3 +359,25 @@ float lovrSphereShapeGetRadius(SphereShape* sphere) {
 void lovrSphereShapeSetRadius(SphereShape* sphere, float radius) {
   dGeomSphereSetRadius(sphere->id, radius);
 }
+
+BoxShape* lovrBoxShapeCreate(float x, float y, float z) {
+  BoxShape* box = lovrAlloc(sizeof(BoxShape), lovrShapeDestroy);
+  if (!box) return NULL;
+
+  box->type = SHAPE_BOX;
+  box->id = dCreateBox(0, x, y, z);
+
+  return box;
+}
+
+void lovrBoxShapeGetDimensions(BoxShape* box, float* x, float* y, float* z) {
+  float dimensions[3];
+  dGeomBoxGetLengths(box->id, dimensions);
+  *x = dimensions[0];
+  *y = dimensions[1];
+  *z = dimensions[2];
+}
+
+void lovrBoxShapeSetDimensions(BoxShape* box, float x, float y, float z) {
+  dGeomBoxSetLengths(box->id, x, y, z);
+}
diff --git a/src/physics/physics.h b/src/physics/physics.h
index 1b8457ca..eec79ed9 100644
--- a/src/physics/physics.h
+++ b/src/physics/physics.h
@@ -28,6 +28,7 @@ typedef struct {
 } Shape;
 
 typedef Shape SphereShape;
+typedef Shape BoxShape;
 
 void lovrPhysicsInit();
 void lovrPhysicsDestroy();
@@ -97,3 +98,7 @@ void lovrShapeSetMask(Shape* shape, uint32_t mask);
 SphereShape* lovrSphereShapeCreate(float radius);
 float lovrSphereShapeGetRadius(SphereShape* shape);
 void lovrSphereShapeSetRadius(SphereShape* shape, float radius);
+
+BoxShape* lovrBoxShapeCreate(float x, float y, float z);
+void lovrBoxShapeGetDimensions(BoxShape* shape, float* x, float* y, float* z);
+void lovrBoxShapeSetDimensions(BoxShape* shape, float x, float y, float z);