Granite Countertop Laminated Edge Price: What the Four Quote Lines Cover
A granite countertop laminated edge price cannot be compared metre against metre, because each quote packs a different set of lines into that metre: strip material, bonding and joint, shaping and polishing, ends and corners. A 30mm slab with a 30mm strip reads as 60mm from the front, and 3.6m of running edge takes about 5.8kg of stone on a 30mm x 20mm strip, cut from the same slab.
What does a granite countertop laminated edge price per metre actually include?
There is no single figure, because each supplier puts a different set of lines inside that metre: some quote the strip alone, some swallow the shaping and polishing, and ends and corners are billed separately. Split the quote into four lines and the numbers line up. (1) Strip material, cut from the same slab rather than bought in. (2) Bonding and the joint, including colour-matched adhesive, clamping and curing time. (3) Shaping and polishing, because the front edge is re-formed after lamination; this is the line most often hidden behind the word included. (4) Ends, corners and cut-out edges, charged per piece or per metre. Whichever line is missing is where the price is low. Match the line count first, then compare the figures.
Why thicken a 30mm top to 60mm, and what happens if you do not?
Lamination buys visual thickness, not load capacity. Load goes through the cabinets and the support battens; the strip is bonded under the top and changes only what you see from the front. Both routes read as 60mm, but they do not take the same stone: a 30mm slab with a 30mm-high strip 20mm deep uses 0.03 x 0.02 x 1 = 0.0006 m3 per metre, about 1.62kg at a granite density of 2.7 t/m3, while a 20mm slab needs a 40mm strip to reach 60mm and uses 0.04 x 0.02 x 1 = 0.0008 m3, about 2.16kg. With the strip depth at 20mm in both cases the bond area is the same, 0.02 m2 per metre; what differs is strip height and the weight of stone. Without lamination a 30mm top reads from the living room as a thin sheet sitting on the doors. A front apron hides the gap between top and cabinet, but not the thickness of the top itself; they are two separate items, and the next section separates them. Thickness here is glued on: a starved bond or an uneven glue line shows as a light and dark band along the front, which looks worse than a thin edge.
How is a laminated edge different from a front apron on the quote?
A laminated edge, also called a built-up edge, is a strip bonded under the top and running the full length of the front; from the front you see a stone section. A front apron is a panel hung down from the front edge, and from the front you see a stone face; its job is to close the gap between top and cabinet. You can do either one alone, or both together. A quote that says laminated while the shop builds an apron is a common mismatch, because both are described as making the front look thicker. The test is simple: is the front a section or a face, and does a horizontal joint appear where the two meet? Lamination sets thickness only, not edge profile; whether the front is finally bullnosed or chamfered, and what radius, is covered in the bullnose guide.
| Item | Laminated edge | Front apron |
|---|---|---|
| Where it sits | Bonded under the top, full length of the front | Hung down from the front edge to the cabinet line |
| What you see | A stone section, so the top reads as one thick slab | A stone face; the top keeps its original thickness |
| What it solves | A front edge that looks too thin | An open gap between top and cabinet |
| How it is quoted | Strip, bonding and shaping as separate lines | Per metre or per piece, with the drop height stated |
How much stone does one laminated edge take? Work it from the section.
Fix the geometry first, then the numbers. The example is a 2400mm x 600mm top installed against a wall, which is an assumption and not a standard value: the long edge against the wall does not count, the front is 2.4m, and the two ends, 0.6m each because that is the depth of the top, are exposed, so the running edge is 2.4 + 0.6 + 0.6 = 3.6m. Keep the 30mm x 20mm section: 0.03 x 0.02 x 3.6 = 0.00216 m3, which at 2.7 t/m3 is about 5.8kg, the same as 1.62 x 3.6. In slab area, a 20mm wide strip takes 0.02 m2 per metre, again assuming 20mm width and no saw kerf, so 3.6m takes 0.072 m2, about 5% of the 1.44 m2 top itself (2.4 x 0.6). How to count: wall edges do not count, every exposed edge does, which means the front plus the two ends. On an L-shape, measure continuously along both legs and stop each leg at the corner point, so the outside corner adds no extra run; the inside corner is where the two back edges meet the wall, has no exposed edge, and is not counted.
The strip is not the top slab, so how is colour variation controlled?
The strip exposes non-face stone along its whole length, and raking light finds any colour difference there first. Put three requirements in the order. First, the strip comes from the same slab or the same block batch, not from whatever is left in the yard. Second, dark stone needs a tinted adhesive: on Sesame Black G654, a black ground with fine light spots, an adhesive that dries lighter becomes a bright line that draws the eye more than the stone itself. Third, polish direction matches the top; strips are usually polished vertically and tops horizontally, and the reflection breaks into two bands. Light colours are not safe either: adhesive that dries yellow shows on a white ground, and more so with time.
Which five questions keep the final invoice from growing after delivery?
Five, asked one by one; whichever cannot be answered is where the extra charge will come from. (1) Does this metre include shaping and polishing? The front edge is re-formed after lamination, so if it is excluded it is added later. (2) How are ends and corners charged, per piece? A 2.4m top has two ends, and a corner top also has an inside and an outside corner. (3) Which slab does the strip come from, the same batch or another? A strip from another batch cannot hide under raking light. (4) Is the corner mitred or simply butt-jointed? A mitre means a 45 degree cut, one more operation and one more glue line. (5) What is the minimum run per top, and does the 100 m2 minimum order apply? We work to a 100 m2 minimum and ship in 5 days, so ask early whether a small order can be batched with another.