Grain Bag & Storage & Bags and Floor Space

Bags = total grain ÷ bag fill weight, rounded up. So 30 tonnes (30,000 kg) of wheat in 50 kg bags needs ceil(30,000 ÷ 50) = 600 bags. Always round up because a part-full bag still occupies a whole bag. Enter your tonnage and the weight you fill each bag to and the tool counts them for you.

Floor area = number of columns (stacks) × the footprint of one bag laid flat × an aisle factor. A 50 kg bag laid flat covers roughly 0.36 m². The tool divides bags into stacks of a safe height, multiplies the column count by the bag footprint, then adds aisle space (default +30%) so you can walk, inspect and load. It reports area both with and without aisles.

Bags can't fill a shed wall to wall — you need walkways between stacks and a gap from the walls for inspection, aeration and forklift or labour access. A +30% aisle allowance is a common planning figure for manual stacks; mechanised warehouses with racking or wide aisles may need more. The tool shows the tighter no-aisle area too, so you can see the difference.

Keep stacks to a safe height so the bottom bags don't burst or compact and the stack stays stable — for hand-stacked jute or woven bags this is often around 15–20 bags or up to head height, lower for heavy or weak bags. Over-tall stacks crush lower bags, restrict airflow and are a falling hazard. The tool divides your bags into columns using your chosen bags-per-stack.

Bags sitting directly on a concrete floor draw up moisture and sweat, and bags pressed against walls get damp and hide pests. Stack on dry wooden or plastic pallets, leave a gap from the walls, and keep aisles between stacks. This keeps the grain dry, lets air move, and makes it easy to inspect every face of every stack.

FIFO — first in, first out — means you dispatch the oldest bags first so nothing sits forgotten and spoils. Arrange and label stacks by intake date, keep older lots accessible near the door, and rotate stock. Combined with good aisles, FIFO stops you finding a mouldy, weevil-ridden stack at the back of the shed months later.

It depends on the fill weight: a tonne is 1000 kg, so at 50 kg per bag a tonne is 20 bags, at 40 kg it's 25 bags, and at 25 kg it's 40 bags. The tool reports bags per tonne for your chosen bag weight, which is handy for quoting, transport planning and labour estimates.

A filled bag's footprint depends mainly on the bag size and how it's laid, not strongly on the grain inside, so the ~0.36 m² figure for a flat 50 kg bag is a reasonable planning default for cereals and pulses. Bulkier light grain may bag larger for the same weight; if your bags differ, adjust the inputs to match what you actually use.

Yes — it works for wheat, paddy, maize, rice, sorghum, gram, soybean or any bagged commodity. The maths is about weight, bag fill and footprint, not the crop, so just set your tonnage, bag weight and stack height and the bag count and floor area follow.

They're solid planning figures for laying out a godown or shed. Real area depends on your exact bag size, stacking pattern, aisle width, doors, columns and any racking. Use the result to size the building and check stack heights, then fine-tune on the floor — leave a margin rather than packing to the last centimetre.