Granite Paving Stone Price per Square Meter: Six Boxes Decide It, Not the Stone
There is no single price per square meter for granite paving. Fill the same six boxes differently for the same Sesame Black — slab yield, finishing passes, edge profile, packing, order tier, freight basis — and the quoted figure moves into another band. No numbers here: what each box is made of, how to align per-square-meter and per-container quotes, and the four items to pin down in one request.
What is the price of granite paving stone per square meter, and why do ten suppliers give ten answers?
A price per square meter is not a property of the stone. It is the output of a table. Fill six boxes differently for the same Sesame Black and the quoted figure lands in a different band: block yield, number of finishing passes, edge profile, packing, order tier and freight basis. Ask "how much per square meter" and you will get one number back. A buyer who knows the trade does not accept that number — they walk the six boxes one by one. The box that does not match is where the gap lives. Once all six match, what is left is a comparable price; before that, you are only comparing whose arithmetic is quieter.
Same Sesame Black, so why is the material cost different between two suppliers?
Material cost is set by four variables, none of which is the name of the stone. First, yield: how many square meters of rough slab it takes to produce one square meter of finished paving. Rust spots, colour veins and hairline cracks have to be cut around, and everything cut around is charged to you. Second, block grade: even one quarry face is sorted into grades — clean faces cost more, faces with mottling cost less, and a sample hides what a paved area reveals. Third, shade batching: a plaza of several thousand square meters is usually drawn from more than one extraction face, and tone drifts between faces worked months apart, so slabs must be sorted, numbered and laid to a plan. Fourth, breakage rate: the smaller the cut size and the more edges you profile, the more chipped pieces. Sesame Black is a dark stone. A tone shift that never shows on a light stone turns into a grey patch in a black field. The gap between two G654 quotes sits mostly in sorting labour and waste, not in the quarry.
How many extra passes do surface finish and edge profile each add?
Sawn is one pass of the blade: flat, with saw marks. Flamed means flame, turn, flame again, then wash. Bush-hammered means every piece goes under the hammer head. Natural split is done by splitting. Match the finish to where the stone is laid: pedestrian plazas take flamed or bush-hammered, which stay grippy in rain; vehicle entrances and ramps take bush-hammered or natural split, where the deeper texture gives tyres something to bite; polished belongs under cover only, because rain turns it into a mirror and a mirror is slippery. Edges are a separate charge: a one or two millimetre chamfer is standard, while a rounded edge or a wide bevel needs another pass on the wheel, and every pass is another setup. So do not ask "do you flame it" — ask how many flame passes, whether all four edges are treated, and whether the profile is inside the square-meter price. Edge profile is the item most often waved through as "standard practice" — ask for a dimension, not a promise.
| Finish or edge | Extra passes over sawn | Where it belongs | What to confirm when quoting |
|---|---|---|---|
| Sawn | Baseline | Site roads, over a bedding layer | Saw marks left or removed, thickness tolerance |
| Flamed | Flame, turn, flame, wash | Pedestrian plazas, stair treads | Number of passes, all four edges same colour |
| Bush-hammered | Every piece under the hammer | Vehicle entrances, ramps | Hammer density, edges done to match |
| Natural split | Split, then trim | Planters, tree surrounds, feature walls | Thickness sufficient to split, who carries breakage |
| Chamfer and edge grinding | One more wheel pass each | Every edge that shows a joint | Chamfer size, included in the price or not |
Why do 100 m², half a container and a full container make three tiers?
The three tiers are not discounts; they are three production modes, three slots in a schedule. At 100 m² you cross the minimum order line, and what it buys is a production run of your own rather than a lower figure: 20 block saws, 500,000 m² a year, a line built in 2019, and five working days for standard slabs. Below that line your stone rides in somebody else's batch and the sizes have to fit whatever slab is open. Around half a container you can hold one extraction face and finish in a single run, which keeps shade inside one batch — but it will not fill a container, so it ships with other cargo. A full container is measured against the 346 m² ceiling for 30 mm slabs laid flat: that figure is a yardstick, not a load. Cut-to-size paving on bearers, with joints left open, will not reach it, so take the actual load from the packing list — pieces × size. That container is yours alone: loading, customs and inland haulage all spread across it. Restocking is the expensive case, and the cost is shade, not size — the original face may already be worked out, and a replacement that matches in tone may not match in batch. So do not ask whether it can be rushed; ask which saw the batch is booked on and when it cuts — the schedule answers, a promise does not.
Per square meter or per container — how do you line the two up?
The two bases convert into each other, and what you need first is two figures: how many square meters actually go into that container, and what the gross weight is. Get both before you compare anything. Then work from both ends: container price divided by actual square meters gives a per-square-meter figure; square-meter price multiplied by actual square meters gives a container figure. When both land on the same number, the quotes are aligned. Cross-check the weight with density at 2.7 t/m³: square meters times thickness times 2.7, held against the gross weight the supplier declares. A supplier far off is either under thickness or inflating area. For markets quoted in sq ft, multiply square meters by 10.764 first. Terms must sit in the same segment too: an FOB square-meter price excludes ocean freight, a CIF price includes it, so strip the freight out of CIF before comparing — otherwise you are comparing ships, not stone.
Which four items must be pinned down when you request a paving quote?
Four, on one sheet, sent over to be filled column by column and returned. Do not ask "is it included" — ask "what do you write in this column". Change the question and vague answers have nowhere to hide. Thickness, finish, edge, packing and terms each have their own wording in the quotation and the contract, and are not repeated in this table. What is left is specific to paving: which area the figure settles on, who absorbs nesting waste, which tier the batch sits in, and how many square meters really go into the box. With all four filled, quotations become comparable. The third column is the price of leaving that item open — the row that does not match is the row that gets re-invoiced on arrival.
| Item to pin down | Why it must be asked | What it costs if you don't |
|---|---|---|
| Area basis | Net laid, cutting or packing list — the three differ | Each side settles on its own figure |
| Cut size and nesting waste | Which area absorbs waste, how much offcut | Offcut is billed into your square meters |
| Order tier | Rides a batch, shares a box, or a full container | Delivery follows someone else's schedule |
| Actual load per container | Pieces × size on the packing list, not 346 multiplied back | Divide by 346 and freight and unit price both misalign |