diff --git a/src/simulation/elements/FRME.cpp b/src/simulation/elements/FRME.cpp
new file mode 100644
index 000000000..62668ea97
--- /dev/null
+++ b/src/simulation/elements/FRME.cpp
@@ -0,0 +1,59 @@
+#include "simulation/Elements.h"
+//#TPT-Directive ElementClass Element_FRME PT_FRME 169
+Element_FRME::Element_FRME()
+{
+    Identifier = "DEFAULT_PT_FRME";
+    Name = "FRME";
+    Colour = PIXPACK(0xBBDD50);
+    MenuVisible = 1;
+    MenuSection = SC_ELEC;
+    Enabled = 1;
+    
+    Advection = 0.0f;
+    AirDrag = 0.00f * CFDS;
+    AirLoss = 0.90f;
+    Loss = 0.00f;
+    Collision = 0.0f;
+    Gravity = 0.0f;
+    Diffusion = 0.00f;
+    HotAir = 0.000f	* CFDS;
+    Falldown = 0;
+    
+    Flammable = 0;
+    Explosive = 0;
+    Meltable = 0;
+    Hardness = 1;
+    
+    Weight = 100;
+    
+    Temperature = R_TEMP+0.0f +273.15f;
+    HeatConduct = 0;
+    Description = "Frame, can be used with pistons to push many particles";
+    
+    State = ST_SOLID;
+    Properties = TYPE_SOLID|PROP_LIFE_DEC;
+    
+    LowPressure = IPL;
+    LowPressureTransition = NT;
+    HighPressure = IPH;
+    HighPressureTransition = NT;
+    LowTemperature = ITL;
+    LowTemperatureTransition = NT;
+    HighTemperature = ITH;
+    HighTemperatureTransition = NT;
+    
+    Graphics = &Element_FRME::graphics;
+}
+
+//#TPT-Directive ElementHeader Element_FRME static int graphics(GRAPHICS_FUNC_ARGS)
+int Element_FRME::graphics(GRAPHICS_FUNC_ARGS)
+{
+	if(cpart->ctype)
+	{
+		*colr -= 60;
+		*colg -= 60;
+	}
+	return 0;
+}
+
+Element_FRME::~Element_FRME() {}
\ No newline at end of file
diff --git a/src/simulation/elements/PSTN.cpp b/src/simulation/elements/PSTN.cpp
index 90b85b80b..361f103ef 100644
--- a/src/simulation/elements/PSTN.cpp
+++ b/src/simulation/elements/PSTN.cpp
@@ -53,6 +53,7 @@ int Element_PSTN::tempParts[128];
 #define PISTON_INACTIVE	0x00
 #define PISTON_RETRACT	0x01
 #define PISTON_EXTEND	0x02
+#define MAX_FRAME		0xFF
 
 //#TPT-Directive ElementHeader Element_PSTN static int update(UPDATE_FUNC_ARGS)
 int Element_PSTN::update(UPDATE_FUNC_ARGS)
@@ -150,11 +151,42 @@ int Element_PSTN::update(UPDATE_FUNC_ARGS)
 	return 0;
 }
 
-//#TPT-Directive ElementHeader Element_PSTN static int MoveStack(Simulation * sim, int stackX, int stackY, int directionX, int directionY, int size, int amount, bool retract)
-int Element_PSTN::MoveStack(Simulation * sim, int stackX, int stackY, int directionX, int directionY, int size, int amount, bool retract)
+//#TPT-Directive ElementHeader Element_PSTN static int MoveStack(Simulation * sim, int stackX, int stackY, int directionX, int directionY, int size, int amount, bool retract, int callDepth = 0)
+int Element_PSTN::MoveStack(Simulation * sim, int stackX, int stackY, int directionX, int directionY, int size, int amount, bool retract, int callDepth)
 {
 	bool foundEnd = false, foundParts = false;
 	int posX, posY, r, spaces = 0, currentPos = 0;
+	r = sim->pmap[stackY][stackX];
+	if(!callDepth && (r&0xFF) == PT_FRME) {
+		int biggestMove = amount;
+		int newY = !!directionX, newX = !!directionY;
+		//If the piston is pushing frame, iterate out from the centre to the edge and push everything resting on frame
+		for(int c = 0; c < MAX_FRAME; c++) {
+			posY = stackY + (c*newY);
+			posX = stackX + (c*newX);
+			if (posX < XRES && posY < YRES && posX >= 0 && posY >= 0) {
+				r = sim->pmap[posY][posX];
+				if((r&0xFF) == PT_FRME) {
+					int val = MoveStack(sim, posX, posY, directionX, directionY, size, amount, retract, 1);
+					if(val < biggestMove)
+						biggestMove = val;
+				}
+			}
+			if(!c)
+				continue; //If in the centre, don't do extend twice
+			posY = stackY - (c*newY);
+			posX = stackX - (c*newX);
+			if (posX < XRES && posY < YRES && posX >= 0 && posY >= 0) {
+				r = sim->pmap[posY][posX];
+				if((r&0xFF) == PT_FRME) {
+					int val = MoveStack(sim, posX, posY, directionX, directionY, size, amount, retract, 1);
+					if(val < biggestMove)
+						biggestMove = val;
+				}
+			}
+		}
+		return biggestMove;
+	}
 	if(retract){
 		for(posX = stackX, posY = stackY; currentPos < size; posX += directionX, posY += directionY) {
 			if (!(posX < XRES && posY < YRES && posX >= 0 && posY >= 0)) {