This is a single-step P2 to P3 factory template. Two of these can be built on a planet with high enough skill in Command Center Upgrades. The Launchpad can hold 10,000m³ of input P2.
Three P2 inputs
Each of the twelve factories processes 22.5m³ of P2 materials per hour. Together they process 6,480m³ per day, given the colony a runtime of 1.5 days before new materials have to be imported from the customs office. The customs office can store another 35,000m³. That gives another 2.7 days of runtime if two templates are built, or double that for one.
Import from E-Uni wiki template
A template can be shared as .json-file or by clipboard. To import a template from wiki, mark and copy the contents of the collapsed template-box to the clipboard. Open the Template list ingame by "Open Templates" and 
"Import & Export". Load from clipboard to build from the template. Save from clipboard to insert the template to the list for later use.
see PI Templates for full guide
Template:
{"CmdCtrLv": 5, "Cmt": "Factory – Barren - Gel-Matrix Biopaste", "Diam": 5820.0,
"L": [
{"D": 6, "Lv": 0, "S": 3},
{"D": 4, "Lv": 0, "S": 11},
{"D": 1, "Lv": 0, "S": 11},
{"D": 11, "Lv": 0, "S": 10},
{"D": 13, "Lv": 0, "S": 8},
{"D": 5, "Lv": 0, "S": 1},
{"D": 3, "Lv": 0, "S": 11},
{"D": 2, "Lv": 0, "S": 11},
{"D": 7, "Lv": 0, "S": 4},
{"D": 8, "Lv": 0, "S": 11},
{"D": 10, "Lv": 0, "S": 9},
{"D": 12, "Lv": 0, "S": 2}],
"P": [
{"H": 0, "La": 1.10907, "Lo": 1.53804, "S": 2348, "T": 2474},
{"H": 0, "La": 1.13032, "Lo": 1.53929, "S": 2348, "T": 2474},
{"H": 0, "La": 1.13015, "Lo": 1.55269, "S": 2348, "T": 2474},
{"H": 0, "La": 1.10846, "Lo": 1.55143, "S": 2348, "T": 2474},
{"H": 0, "La": 1.09801, "Lo": 1.53222, "S": 2348, "T": 2474},
{"H": 0, "La": 1.14092, "Lo": 1.55882, "S": 2348, "T": 2474},
{"H": 0, "La": 1.09774, "Lo": 1.55779, "S": 2348, "T": 2474},
{"H": 0, "La": 1.12019, "Lo": 1.53191, "S": 2348, "T": 2474},
{"H": 0, "La": 1.11867, "Lo": 1.57243, "S": 2348, "T": 2474},
{"H": 0, "La": 1.11918, "Lo": 1.55895, "S": 2348, "T": 2474},
{"H": 0, "La": 1.11954, "Lo": 1.54545, "S": null, "T": 2552},
{"H": 0, "La": 1.14128, "Lo": 1.53273, "S": 2348, "T": 2474},
{"H": 0, "La": 1.12045, "Lo": 1.51829, "S": 2348, "T": 2474}],
"Pln": 2016, "R": [
{"P": [11, 8, 13], "Q": 10, "T": 2329},
{"P": [11, 8, 13], "Q": 10, "T": 9838},
{"P": [11, 4], "Q": 10, "T": 2317},
{"P": [11, 4], "Q": 10, "T": 9838},
{"P": [11, 4, 7], "Q": 10, "T": 2317},
{"P": [11, 4, 7], "Q": 10, "T": 9838},
{"P": [11, 1], "Q": 10, "T": 2317},
{"P": [11, 1], "Q": 10, "T": 9838},
{"P": [11, 1, 5], "Q": 10, "T": 2317},
{"P": [11, 1, 5], "Q": 10, "T": 9838},
{"P": [11, 8], "Q": 10, "T": 2317},
{"P": [11, 8], "Q": 10, "T": 9838},
{"P": [11, 8, 13], "Q": 10, "T": 2317},
{"P": [11, 2], "Q": 10, "T": 2317},
{"P": [11, 2], "Q": 10, "T": 9838},
{"P": [11, 2, 12], "Q": 10, "T": 2317},
{"P": [11, 2, 12], "Q": 10, "T": 9838},
{"P": [11, 3], "Q": 10, "T": 2317},
{"P": [11, 3], "Q": 10, "T": 9838},
{"P": [11, 3, 6], "Q": 10, "T": 2317},
{"P": [11, 3, 6], "Q": 10, "T": 9838},
{"P": [11, 10, 9], "Q": 10, "T": 2317},
{"P": [11, 10, 9], "Q": 10, "T": 9838},
{"P": [11, 10], "Q": 10, "T": 2317},
{"P": [11, 10], "Q": 10, "T": 9838},
{"P": [11, 4], "Q": 10, "T": 2329},
{"P": [11, 4, 7], "Q": 10, "T": 2329},
{"P": [11, 1], "Q": 10, "T": 2329},
{"P": [11, 1, 5], "Q": 10, "T": 2329},
{"P": [11, 8], "Q": 10, "T": 2329},
{"P": [7, 4, 11], "Q": 3, "T": 2348},
{"P": [4, 11], "Q": 3, "T": 2348},
{"P": [11, 2, 12], "Q": 10, "T": 2329},
{"P": [5, 1, 11], "Q": 3, "T": 2348},
{"P": [8, 11], "Q": 3, "T": 2348},
{"P": [13, 8, 11], "Q": 3, "T": 2348},
{"P": [2, 11], "Q": 3, "T": 2348},
{"P": [12, 2, 11], "Q": 3, "T": 2348},
{"P": [3, 11], "Q": 3, "T": 2348},
{"P": [6, 3, 11], "Q": 3, "T": 2348},
{"P": [10, 11], "Q": 3, "T": 2348},
{"P": [9, 10, 11], "Q": 3, "T": 2348},
{"P": [11, 2], "Q": 10, "T": 2329},
{"P": [11, 3, 6], "Q": 10, "T": 2329},
{"P": [11, 10], "Q": 10, "T": 2329},
{"P": [11, 10, 9], "Q": 10, "T": 2329},
{"P": [11, 3], "Q": 10, "T": 2329},
{"P": [1, 11], "Q": 3, "T": 2348}]}