We object pool grille now.

code/__HELPERS/experimental.dm

@@ -44,6 +44,7 @@ var/turf/sekrit = locate(1, 1, CENTCOMM_Z)
 // List reference for pools.
 var/list/shardPool
 var/list/plasmaShardPool
+var/list/grillePool
 
 /*
  * @args
@@ -70,6 +71,15 @@ var/list/plasmaShardPool
 
 			if (0 == plasmaShardPool.len)
 				plasmaShardPool = null
+		if (/obj/structure/grille)
+			if (isnull(grillePool))
+				return new /obj/structure/grille()
+
+			. = grillePool[FIRST_OBJECT]
+			grillePool = grillePool - .
+
+			if (0 == grillePool.len)
+				grillePool = null
 #undef FIRST_OBJECT
 
 /*
@@ -92,3 +102,10 @@ var/list/plasmaShardPool
 			var /obj/item/weapon/shard/plasma/Plasma = A
 			Plasma.loc = sekrit
 			plasmaShardPool = plasmaShardPool + Plasma
+		if (/obj/structure/grille)
+			if (isnull(grillePool))
+				grillePool = new /list()
+
+			var /obj/structure/grille/Grille = A
+			Grille.loc = sekrit
+			grillePool = grillePool + Grille

code/game/objects/items/stacks/rods.dm

@@ -64,8 +64,9 @@
 		usr << "\blue Assembling grille..."
 		if (!do_after(usr, 10))
 			return
-		var/obj/structure/grille/F = new /obj/structure/grille/ ( usr.loc )
+		var /obj/structure/grille/Grille = getFromPool(/obj/structure/grille)
+		Grille.loc = loc
 		usr << "\blue You assemble a grille"
-		F.add_fingerprint(usr)
+		Grille.add_fingerprint(usr)
 		use(2)
 	return

code/game/objects/structures/grille.dm

@@ -111,7 +111,7 @@
 		if(!shock(user, 100))
 			playsound(loc, 'sound/items/Wirecutter.ogg', 100, 1)
 			new /obj/item/stack/rods(loc, 2)
-			del(src)
+			returnToPool(src)
 	else if((isscrewdriver(W)) && (istype(loc, /turf/simulated) || anchored))
 		if(!shock(user, 90))
 			playsound(loc, 'sound/items/Screwdriver.ogg', 100, 1)
@@ -191,7 +191,7 @@
 		else
 			if(health <= -6)
 				new /obj/item/stack/rods(loc)
-				del(src)
+				returnToPool(src)
 				return
 	return