A good idea is to make a master list for yourself on how to order your production something like this below which is an old one for one of my Empires:
MASTER PRODUCTION QUEUE FOR GOB
10-90 Priority Items One Build NON tooled
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
Level One Resources Plus ESP Resources (26) Tooled
300 0 Caldaran Crystals
340 0 Coal
380 0 Crystals
420 0 Fibers
460 0 Fruits&Vegetables
500 0 Gaseous Elements
540 0 Gemstones
580 0 Ghuran Demonblood
620 0 Grains
660 0 Industrial Chemicals
700 0 Iron
740 0 Light Metals
780 0 Lumber
820 0 Meat
860 0 Mineral Fertilisers
900 0 Petrochemicals
940 0 Precious Metals
980 0 Radioactive Elements
1020 0 Rare Elements
1060 0 Rare Herbs & Spices
1100 0 Shenn Stones
1140 0 Water
1180 0 Garoxx Jewels
1220 0 Jinn Crystals
1260 0 Trintalum
1300 0 Non Tooled Build Space
Level Two Resources Plus Space for Improved Resources (30) (When Advanced comes then eliminate lowest level etc)
1340 0 Food Stuffs
1380 0 Fuel
1420 0 Luxury Goods
1460 0 Petroleum
1500 0 Pharmaceuticals
1540 0 Plantfoods
1580 0 Processed Radioactives
1620 0 Refined Crystals
1640 0 Steel
1680 0 Synthetic Materials
1720 0 Textiles
1760 0 Timber
1800 0 Transaluminum
1840 0 Weapons
1880 Improved FoodStuffs
1920 Improved Fuel
1960 Improved Luxury Goods
2000 Improved Petroleum
2040 Improved Pharmaceuticals
2080 Improved Plantfoods
2120 Improved Processed Radioactives
2160 Improved Refined Crystals
2200 Improved Steel
2240 Improved Synthetic Materials
2280 Improved Textiles
2320 Improved Timber
2360 Improved Transaluminum
2400 Improved Weapons
2440 Advanced Foodstuffs
2480 Advanced Fuel
2320 Advanced Luxury Goods
2360 Advanced Petroleum
2400 Advanced Pharmaceuticals
2440 Advanced Plantfoods
2480 Advanced Processed Radioactives
2520 Advanced Refined Crystals
2560 Advanced Steel
2600 Advanced Synthetic Materials
2640 Advanced Textiles
2680 Advanced Timber
2720 Advanced Transaluminum
2760 Advanced Weapons
Level Three Resources plus space for Improved Resources plus 4 extra spaces (14) (When Advanced comes eliminate lowest level etc)
2800 0 Electronics
2840 0 Construction Materials
2920 0 Food Concentrates
2960 0 Black Market Goods
3000 0 Consumer Goods
3040 Improved Electronics
3080 Improved Construction Materials
3120 Improved Food Concentrates
3160 Improved Black Market Goods
3200 Improved Consumer Goods
3240 Advanced Electronics
3280 Advanced Construction Materials
3320 Advanced Food Concentrates
3360 Advanced Black Market Goods
3400 Advanced Consumer Goods
Misc Builds (5)
3440 0 Heavy Machinery
3480 0 Improved Heavy Machinery
3520 0 Advanced Heavy Machinery
3560 0 Non Tooled Build Space
3600 0 Non Tooled Build Space
3640 0 Non Tooled Build Space
Ship Component Builds
ENGINES & JUMP DRIVES (5)
3680
3720
3760
3800
3840
3880
3920
SENSORS & BRIDGE (10)
3960 0
4000 0
4040
4080
4120
4160
4200
4240
4280
4320
4360
WEAPONS (10)
4400
4440
4480 0 Heavy Stun Beam
4520 0
4560 0
4600 0
4640 0
4680 0
4720
4760
DEFENSIVE SYSTEMS (10)
4800 0 Selenite Battle Weave
4840 0 EDAC
4880 0 Type A Defense Screen
4920 Laser CIDS
4960 Mk II Force Shield
5000
5040
5080
5120
5160
5200
MISC SHIP COMPONENTS (20)
5240 0
5280 0 Cargo Bay
5320 0 Fuel Tankage
5360 0 Fighter Bay
5400 0 Drone Rack
5440 0
5480 0
5520 0
5560 0
5600
5640
5680
5720
5760
5800
5840
5880
5920
5960
6000
Troop Related Builds (6)
6040 10 Troopers
6080 3 Imperial Army Soldiers
6120 3 Imperial Guards Soldiers
6160 3 Imperial Marines Soldiers
6200 8 Space Defense
6240 0 Non tooled Build Space
6280 0 Non tooled Build Space
6320
6360
6400
6440
6480
6520
6560
6600
6640
6680
6720
6760
6800
999999 END OF QUEUE BUILD IRON!!!!!
/Locklyn