diff --git a/src/k_terrain.c b/src/k_terrain.c
index c6558a22f..a7bb41e0c 100644
--- a/src/k_terrain.c
+++ b/src/k_terrain.c
@@ -332,16 +332,6 @@ terrain_t *K_GetDefaultTerrain(void)
 	return K_GetTerrainByIndex(defaultTerrain);
 }
 
-/*--------------------------------------------------
-	size_t K_GetDefaultTerrainID(void)
-
-		See header file for description.
---------------------------------------------------*/
-size_t K_GetDefaultTerrainID(void)
-{
-	return defaultTerrain;
-}
-
 /*--------------------------------------------------
 	terrain_t *K_GetTerrainForTextureName(const char *checkName)
 
@@ -370,34 +360,6 @@ terrain_t *K_GetTerrainForTextureName(const char *checkName)
 	return K_GetDefaultTerrain();
 }
 
-/*--------------------------------------------------
-	size_t K_GetTerrainIDForTextureName(const char *checkName)
-
-		See header file for description.
---------------------------------------------------*/
-size_t K_GetTerrainIDForTextureName(const char *checkName)
-{
-	UINT32 checkHash = quickncasehash(checkName, 8);
-	size_t i;
-
-	if (numTerrainFloorDefs > 0)
-	{
-		for (i = 0; i < numTerrainFloorDefs; i++)
-		{
-			t_floor_t *f = &terrainFloorDefs[i];
-
-			if (checkHash == f->textureHash && !strncasecmp(checkName, f->textureName, 8))
-			{
-				return f->terrainID;
-			}
-		}
-	}
-
-	// This texture doesn't have a terrain directly applied to it,
-	// so we fallback to the default terrain.
-	return K_GetDefaultTerrainID();
-}
-
 /*--------------------------------------------------
 	terrain_t *K_GetTerrainForTextureNum(INT32 textureNum)
 
@@ -408,7 +370,7 @@ terrain_t *K_GetTerrainForTextureNum(INT32 textureNum)
 	if (textureNum >= 0 && textureNum < numtextures)
 	{
 		texture_t *tex = textures[textureNum];
-		return K_GetTerrainByIndex(tex->terrainID);
+		return K_GetTerrainForTextureName(tex->name);
 	}
 
 	// This texture doesn't have a terrain directly applied to it,
@@ -1866,12 +1828,6 @@ static boolean K_TERRAINLumpParser(UINT8 *data, size_t size)
 						{
 							f->terrainID = K_GetTerrainHeapIndex(t);
 							CONS_Printf("Texture '%s' set to Terrain '%s'\n", f->textureName, tkn);
-
-							INT32 tex = R_CheckTextureNumForName(f->textureName);
-							if (tex != -1)
-							{
-								textures[tex]->terrainID = f->terrainID;
-							}
 						}
 					}
 					else
diff --git a/src/k_terrain.h b/src/k_terrain.h
index ef2dd77fa..555e2751d 100644
--- a/src/k_terrain.h
+++ b/src/k_terrain.h
@@ -388,19 +388,6 @@ terrain_t *K_GetTerrainByName(const char *checkName);
 
 terrain_t *K_GetDefaultTerrain(void);
 
-/*--------------------------------------------------
-	size_t K_GetDefaultTerrainID(void)
-
-		Returns the default terrain definition's ID, used
-		in cases where terrain is not set for a texture.
-
-	Input Arguments:-
-		None
-
-	Return:-
-		The default terrain definition's ID, NULL if it didn't exist.
---------------------------------------------------*/
-size_t K_GetDefaultTerrainID(void);
 
 /*--------------------------------------------------
 	terrain_t *K_GetTerrainForTextureName(const char *checkName);
@@ -420,22 +407,6 @@ size_t K_GetDefaultTerrainID(void);
 terrain_t *K_GetTerrainForTextureName(const char *checkName);
 
 
-/*--------------------------------------------------
-	size_t K_GetTerrainIDForTextureName(const char *checkName)
-
-		Returns the ID of the terrain definition applied
-		to the texture name inputted.
-		
-	Input Arguments:-
-		checkName - The texture's name.
-
-	Return:-
-		The texture's terrain definition's ID if it exists,
-		otherwise the default terrain's ID if it exists,
-		otherwise NULL.
---------------------------------------------------*/
-size_t K_GetTerrainIDForTextureName(const char *checkName);
-
 /*--------------------------------------------------
 	terrain_t *K_GetTerrainForTextureNum(INT32 textureNum);
 
diff --git a/src/r_textures.c b/src/r_textures.c
index 40dbf291c..35d79e872 100644
--- a/src/r_textures.c
+++ b/src/r_textures.c
@@ -853,7 +853,6 @@ Rloadflats (INT32 i, INT32 w)
 			texture->patchcount = 1;
 			texture->holes = false;
 			texture->flip = 0;
-			texture->terrainID = K_GetTerrainIDForTextureName(texture->name);
 
 			// Allocate information for the texture's patches.
 			patch = &texture->patches[0];
@@ -956,7 +955,6 @@ Rloadtextures (INT32 i, INT32 w)
 			texture->patchcount = 1;
 			texture->holes = false;
 			texture->flip = 0;
-			texture->terrainID = K_GetTerrainIDForTextureName(texture->name);
 
 			// Allocate information for the texture's patches.
 			patch = &texture->patches[0];
@@ -1477,7 +1475,6 @@ static texture_t *R_ParseTexture(boolean actuallyLoadTexture)
 			resultTexture->width = newTextureWidth;
 			resultTexture->height = newTextureHeight;
 			resultTexture->type = TEXTURETYPE_COMPOSITE;
-			resultTexture->terrainID = K_GetTerrainIDForTextureName(newTextureName);
 		}
 		Z_Free(texturesToken);
 		texturesToken = M_GetToken(NULL);
diff --git a/src/r_textures.h b/src/r_textures.h
index 8e24d276c..1de51f666 100644
--- a/src/r_textures.h
+++ b/src/r_textures.h
@@ -62,7 +62,6 @@ typedef struct
 	boolean holes;
 	UINT8 flip; // 1 = flipx, 2 = flipy, 3 = both
 	void *flat; // The texture, as a flat.
-	size_t terrainID;
 
 	// All the patches[patchcount] are drawn back to front into the cached texture.
 	INT16 patchcount;