Standard flooring plank sizes and how they change your layout
10 July 2026
Plank size looks like an aesthetic choice, but it's the third input, alongside your room and your pattern, that determines every row, cut and offcut in the layout. Two ranges at the same price per m² can produce visibly and financially different floors in the same room, purely through their dimensions.
What's on the shelves
| Material | Length | Width | Notes |
|---|---|---|---|
| Laminate (standard) | 1,280 to 1,380 mm | 190 to 245 mm | the default format |
| Laminate (long/wide) | 1,800 to 2,050 mm | 240 to 330 mm | premium ranges |
| LVT plank | 1,200 to 1,500 mm | 180 to 230 mm | rigid core slightly chunkier |
| LVT herringbone | 600 to 750 mm | 120 to 150 mm | length = 4 to 5 × width |
| Engineered wood | 1,800 to 2,200+ mm | 180 to 260+ mm | widest spread |
| Herringbone (wood) | 400 to 700 mm | 90 to 140 mm | length must divide by width |
Pack coverage follows size: standard laminate packs cover about 1.6 to 2.5 m² (usually 7 to 9 boards); wide engineered packs sometimes barely 1.5 m². The number matters for the pack maths, so never assume it, read it off the pack.
How length changes the layout
Row arithmetic: room length ÷ board length. The remainder is the end-cut, and the end-cut is the offcut that starts later rows:
- Good multiples produce offcuts near half a board, which make ideal starters.
- Bad multiples (room length just over a whole number of boards) produce stubs under the minimum piece length every single row, which are un-reusable, so waste climbs quietly by several percent.
- Longer boards make longer offcuts on average, but also lose more per discarded piece. The effect depends on your room, which is exactly the kind of arithmetic worth checking in a layout before buying.
Length also gates the stagger: the minimum joint offset (200 to 300 mm) is a bigger fraction of a short board, so short-board ranges support fewer bond fractions.
How width changes the layout
Room width ÷ board width sets the row count and the remainder that becomes the last-row rip:
- Narrow boards (≤200 mm): more rows, finer granularity, so the remainder is easier to split into two healthy edge rows.
- Wide boards (≥240 mm): fewer rows, calmer floor, but the remainder swings bigger, and a bad split costs a wide, expensive rip. In narrow rooms wide boards can end up as two rips and one full row, which looks exactly as unplanned as it is.
Pattern formats are stricter
Herringbone, basketweave and windmill require the length to be an exact multiple of the width: 5× for a 600 × 120 herringbone board, 2 to 5× for the block patterns. A range that's a few millimetres off doesn't close. The pattern pages list the requirement per pattern; check it before falling for a decor.
Try the size before you buy the size
Since the same room can waste 5% with one format and 9% with another, the cheapest hour of the project is testing your shortlisted ranges against your actual room: enter each board size in the designer and compare pack counts and last-row widths side by side. The cost guide shows what those few percent are worth in money.
Frequently asked questions
- What is the standard size of a laminate plank?
- The most common format is roughly 1,280 to 1,380 mm long by 190 to 245 mm wide, 7 to 12 mm thick. LVT planks run shorter and narrower (typically 1,200 to 1,500 mm by 180 to 230 mm); engineered wood spans the widest range, up to 2,200 × 260 mm and beyond.
- Are wider flooring planks better?
- Wider planks mean fewer rows and a calmer look, but each row is a bigger fraction of the room width, so the last-row arithmetic gets chunkier and a bad split wastes more. In small rooms, very wide planks can look out of scale.
- Does plank size affect how much flooring I waste?
- Yes, twice over. Length interacts with room length (bad multiples leave stub offcuts every row) and width interacts with room width (deciding the last-row rip). Two ranges of the same m² price can differ by several percent in real waste for your room.