diff --git a/data/json/construction.json b/data/json/construction.json
index 110210934b0b..84c44f162294 100644
--- a/data/json/construction.json
+++ b/data/json/construction.json
@@ -4092,7 +4092,7 @@
     "type": "construction",
     "id": "constr_solar_unit",
     "group": "install_solar_panel",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [ [ "fabrication", 4 ], [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4106,7 +4106,7 @@
     "type": "construction",
     "id": "constr_solar_unit_2",
     "group": "install_upgraded_solar_panel",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [ [ "fabrication", 4 ], [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4120,7 +4120,7 @@
     "type": "construction",
     "id": "constr_battery",
     "group": "install_battery",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [ [ "fabrication", 3 ], [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4140,7 +4140,7 @@
     "type": "construction",
     "id": "constr_battery_large",
     "group": "install_storage_battery",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [ [ "fabrication", 3 ], [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4160,7 +4160,7 @@
     "type": "construction",
     "id": "constr_battery_huge",
     "group": "install_large_storage_battery",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [ [ "fabrication", 3 ], [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4180,7 +4180,7 @@
     "type": "construction",
     "id": "constr_oven",
     "group": "install_oven",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [  ],
     "time": "10 m",
     "qualities": [  ],
@@ -4193,7 +4193,7 @@
     "type": "construction",
     "id": "constr_gridfridge",
     "group": "install_refrigerator",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [  ],
     "time": "10 m",
     "qualities": [  ],
@@ -4206,7 +4206,7 @@
     "type": "construction",
     "id": "constr_gridglass_fridge",
     "group": "install_glass_refrigerator",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [  ],
     "time": "10 m",
     "qualities": [  ],
@@ -4219,7 +4219,7 @@
     "type": "construction",
     "id": "constr_gridminifreezer",
     "group": "install_minifreezer",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [  ],
     "time": "10 m",
     "qualities": [  ],
@@ -4232,7 +4232,7 @@
     "type": "construction",
     "id": "constr_gridfreezer",
     "group": "install_freezer",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [  ],
     "time": "10 m",
     "qualities": [  ],
@@ -4245,7 +4245,7 @@
     "type": "construction",
     "id": "constr_gridglass_freezer",
     "group": "install_glass_freezer",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [  ],
     "time": "10 m",
     "qualities": [  ],
@@ -4258,7 +4258,7 @@
     "type": "construction",
     "id": "constr_cable_connector",
     "group": "build_jumper_cable_connector",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [ [ "electronics", 1 ] ],
     "time": "45 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4272,7 +4272,7 @@
     "type": "construction",
     "id": "constr_charger",
     "group": "place_charger",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [ [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4286,7 +4286,7 @@
     "type": "construction",
     "id": "constr_gridwelder",
     "group": "place_arc_welder",
-    "category": "OTHER",
+    "category": "WORKSHOP",
     "required_skills": [ [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4300,7 +4300,7 @@
     "type": "construction",
     "id": "constr_gridwelderrig",
     "group": "place_welding_rig",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [ [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4314,7 +4314,7 @@
     "type": "construction",
     "id": "constr_gridforge",
     "group": "place_electric_forge",
-    "category": "OTHER",
+    "category": "WORKSHOP",
     "required_skills": [ [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4328,7 +4328,7 @@
     "type": "construction",
     "id": "constr_gridkiln",
     "group": "place_electric_kiln",
-    "category": "OTHER",
+    "category": "WORKSHOP",
     "required_skills": [ [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4342,7 +4342,7 @@
     "type": "construction",
     "id": "constr_gridelectrolysis_kit",
     "group": "place_electrolysis_kit",
-    "category": "OTHER",
+    "category": "WORKSHOP",
     "required_skills": [ [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4356,7 +4356,7 @@
     "type": "construction",
     "id": "constr_gridautoclave",
     "group": "place_autoclave",
-    "category": "OTHER",
+    "category": "WORKSHOP",
     "required_skills": [ [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4370,7 +4370,7 @@
     "type": "construction",
     "id": "constr_griddehydrator",
     "group": "place_food_dehydrator",
-    "category": "OTHER",
+    "category": "WORKSHOP",
     "required_skills": [ [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4384,7 +4384,7 @@
     "type": "construction",
     "id": "constr_gridfood_processor",
     "group": "place_food_processor",
-    "category": "OTHER",
+    "category": "WORKSHOP",
     "required_skills": [ [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4398,7 +4398,7 @@
     "type": "construction",
     "id": "constr_gridvac_sealer",
     "group": "place_vaccuum_sealer",
-    "category": "OTHER",
+    "category": "WORKSHOP",
     "required_skills": [ [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4426,7 +4426,7 @@
     "type": "construction",
     "id": "constr_gridrvkitchen",
     "group": "place_rv_kitchen_unit",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [ [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4440,7 +4440,7 @@
     "type": "construction",
     "id": "constr_gridsolderingiron",
     "group": "place_soldering_iron",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [ [ "electronics", 1 ] ],
     "time": "30 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],
@@ -4552,7 +4552,7 @@
     "type": "construction",
     "id": "constr_f_floor_lamp",
     "group": "build_floor_lamp",
-    "category": "FURN",
+    "category": "WORKSHOP",
     "required_skills": [ [ "fabrication", 2 ], [ "electronics", 0 ] ],
     "time": "20 m",
     "qualities": [ [ { "id": "SCREW", "level": 1 } ] ],