How many 600 × 600 tiles are needed for 1000 square feet?

About 259 tiles before wastage, since each tile covers roughly 3.87 square feet including a 2 mm joint. With an eight percent cutting allowance the order rises to around 280 tiles, or 70 boxes of four.

How much tile wastage should I allow?

Five to ten percent is common for straight layouts in regular rooms, and more for diagonal patterns, small bathrooms or rooms with many obstructions. Add a spare box for future repairs regardless.

Does the calculator cover skirting and wall tiles?

Not directly, but you can run it again with the skirting or wall area entered as the area. Skirting is usually cut from full tiles, so allow for the offcut you cannot use.

How much extra tile should I buy?

Enough to cover cutting waste plus attic stock for later repairs. The wastage percentage handles cutting; the attic stock is a judgement, and buying it in the same batch matters because shade varies between production runs. Diagonal and patterned layouts cut far more heavily than a straight grid.

Tile calculator — tiles, boxes and area for a floor

Convert a floor area and a tile size into the number of tiles, the boxes to order and the purchase area, with the grout joint accounted for.

Area

Floor areayou enter

Area unityou enter

Tile

Tile lengthyou enter

Tile widthyou enter

Grout jointyou enter

Rectified vitrified tiles use 2 mm or less; ceramic tiles commonly 3 mm.

Ordering

Cutting and breakageyou enter

Diagonal layouts and small rooms with many cuts need more. Order one extra box for future repairs.

Tiles per boxyou enter

From the supplier's packing. Enter zero if you are buying loose.

Result — calculated from your inputs

Tiles to order278 tiles

Boxes70 boxes

Purchase area1,077.25 sq ft

Working

Floor area1,000.00 sq ft

Tile face area3.8750 sq ft

Tiles before wastage257

Tiles including wastage278

Continue to a full site assessment

A calculator answers one question. A DevPartner assessment carries planning capacity, programme, cost, revenue, deal structure and cash flow through one deterministic model and freezes a versioned decision report.

Nothing from this calculator maps into the assessment intake, so you will start from a blank site. No opportunity is created until you save one.

Continue to a full site assessment See a sample decision report

How this calculator works

module area = (tile length + joint) × (tile width + joint)
tiles       = floor area ÷ module area, rounded up
order       = tiles × (1 + wastage %), rounded up
boxes       = order ÷ tiles per box, rounded up

You enter: A value you supply. Nothing is assumed for you.
Calculated: Arithmetic on your inputs, shown in the working.
Assumption: A factor or allowance you can change — mix ratios, wastage, dry-volume factors.
Approximation: Geometry or method that approximates reality; labelled wherever used.
Verify locally: Planning parameters, statutory rates and structural design must come from the authority or a qualified professional.

The joint changes the count

Tiles are sold by face size but laid on a module that includes the grout joint. A 600 × 600 mm tile at a 2 mm joint occupies 602 × 602 mm of floor. Over a thousand square feet that difference is worth several tiles — small, but the direction matters: ignoring the joint over-orders slightly, while ignoring wastage under-orders substantially.

Purchase area here is reported on face area, because that is how tiles are priced and how the supplier's box coverage is stated.

Order the extra box

Tile production runs vary in shade. A replacement bought two years later will not match, whatever the model number says. Standard practice is to order at least one full box beyond the calculated requirement and store it on site for repairs.

Layout drives wastage more than room size does. A diagonal or herringbone layout, many small rooms, or a room whose dimensions are an awkward multiple of the tile module can push cutting waste well above ten percent.

Worked example

100 sq m of floor laid in 600 × 600 mm tiles with a 2 mm joint uses a 602 × 602 mm module, so about 277 tiles are needed before wastage. At 8% for cutting and breakage that becomes 300 tiles, which at four tiles per box is 75 boxes.

Purchase area is reported on the tile face, because that is how tile is sold — the joint is mortar, not tile.

Mistakes in tile ordering

Ignoring the grout joint, which understates the module and therefore the coverage per tile.

Ordering the exact calculated quantity with no attic stock. Later batches differ in shade and a single cracked tile becomes a visible repair.

Using floor area alone for a diagonal or patterned layout, which cuts far more heavily at the perimeter.

Limits and assumptions

Wastage depends on room shape, layout, tile size and the tiler. Small rooms with many cuts consume proportionally more than a large open floor.

Skirting, thresholds, adhesive and grout quantities are not calculated here.

Frequently asked questions

How many 600 × 600 tiles are needed for 1000 square feet?: About 259 tiles before wastage, since each tile covers roughly 3.87 square feet including a 2 mm joint. With an eight percent cutting allowance the order rises to around 280 tiles, or 70 boxes of four.
How much tile wastage should I allow?: Five to ten percent is common for straight layouts in regular rooms, and more for diagonal patterns, small bathrooms or rooms with many obstructions. Add a spare box for future repairs regardless.
Does the calculator cover skirting and wall tiles?: Not directly, but you can run it again with the skirting or wall area entered as the area. Skirting is usually cut from full tiles, so allow for the offcut you cannot use.
How much extra tile should I buy?: Enough to cover cutting waste plus attic stock for later repairs. The wastage percentage handles cutting; the attic stock is a judgement, and buying it in the same batch matters because shade varies between production runs. Diagonal and patterned layouts cut far more heavily than a straight grid.