How many square metres are in a box of Morbi tiles, and how do I turn boxes into square metres for a buyer's carbon figure?

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Accepted Answer

The Morbi manual defines a vitrified tile box as 4 tiles of 600 by 600 millimetres, which is 1.44 square metres. Its wall and floor boxes hold from 5 to 90 tiles by size and come to between 0.83 and 1.39 square metres, so each size needs its own conversion. A buyer's carbon question for tiles is almost always per square metre, because a square metre of floor is what the buyer covers. Morbi plants count output in boxes. The Bureau of Energy Efficiency (BEE) Morbi manual gives yearly output in boxes, and says what a box holds. That gives you the bridge. A box is not a fixed area. Among wall and floor sizes, the same count of boxes can cover 69% more floor in one size than in another, and the 1.44 square metre vitrified box is bigger still, so a plant that sells several sizes must convert size by size. Vitrified tile: one box has 4 tiles of 600 millimetres by 600 millimetres. That is 4 x 0.6 x 0.6 = 1.44 square metres. Wall and floor tile: the manual gives the tile count per box for twelve sizes in inches. Using 25.4 millimetres to the inch (my conversion), the boxes come to: 4 by 4 inch tiles, 84 to a box: 0.867 square metres a box 6 by 6 inch tiles, 44 to a box: 1.022 square metres a box 8 by 3 inch tiles, 90 to a box: 1.394 square metres a box 8 by 8 inch tiles, 25 to a box: 1.032 square metres a box 8 by 12 inch tiles, 15 to a box: 0.929 square metres a box 10 by 10 inch tiles, 13 to a box: 0.839 square metres a box 10 by 13 inch tiles, 10 to a box: 0.839 square metres a box 10 by 16 inch tiles, 8 to a box: 0.826 square metres a box 13 by 24 inch tiles, 5 to a box: 1.006 square metres a box 12 by 12 inch tiles, 10 to a box: 0.929 square metres a box 12 by 18 inch tiles, 7 to a box: 0.975 square metres a box 16 by 16 inch tiles, 6 to a box: 0.991 square metres a box The smallest box in the list is the 10 by 16 inch, 8 tile box at 0.826 square metres. The largest is the 8 by 3 inch, 90 tile box at 1.394. The largest is 1.394 / 0.826 = 1.69 times the smallest. A wall tile box is often near one square metre, which is why boxes and square metres get mixed up, but near is not equal. The manual gives a typical vitrified tile unit 755,879 to 1,376,289 boxes a year. At 1.44 square metres a box that is 1,088,466 to 1,981,856 square metres. For wall and floor tile the manual gives boxes a year (633,053 to 3,809,931 for wall tile; 1,493,322 to 4,276,309 for floor tile) but not the mix of sizes, so it cannot be turned into square metres without your own packing records. Take the packing list or dispatch record for the month, with tile size and boxes for each line. Look up tiles per box from your carton label. If it matches the manual's list, use the area above; if not, use your own, tiles per box x tile length x tile width. Add the square metres. Divide the month's gas and power carbon dioxide by that total. Keep the size mix with the result. A buyer comparing two years should see if the mix moved.

How many square metres are in a box of Morbi tiles, and how do I turn boxes into square metres for a buyer's carbon figure?

Why boxes are not enough

What the manual says a box holds

How wide the spread is

What a typical unit makes, in square metres

Steps

One month's packing list, example numbers

What Senseible does here