Choosing between 8mm and 12mm laminate flooring? Thickness matters for the height and construction of your finished floor, but it does not tell you everything about wear resistance, moisture protection or sound. Compare the complete product and installation system before paying for a thicker board.
First, check what the measurement includes
Millimeters describe thickness. Ask whether the advertised measurement covers the laminate board alone or includes attached padding. Compare like with like: a board plus a pad is not the same specification as a board of that total thickness without a pad. Laminate is also available in sizes other than 8mm and 12mm.
What can change when the board is thicker?
A thicker board can feel more substantial, but core construction, the locking joint, approved underlayment and a properly prepared subfloor all affect the result. Neither thickness will fix a floor that is outside the manufacturer’s flatness tolerance. Extra-soft padding is not a substitute for preparation and may be incompatible with the locking system.
Finished height is often the practical deciding factor. Include underlayment when checking transitions to tile, door clearance and appliance removal space. A thicker floor can create a different height at a doorway even when the room itself looks unchanged.
What thickness does not prove
- Wear and scratch performance: compare the product’s AC abrasion rating, surface specifications and warranty. A 12mm board is not automatically more scratch resistant than an 8mm board.
- Water protection: thickness does not establish waterproof performance. Read the named collection’s water warranty, installation requirements and exclusions.
- Quietness: sound depends on the floor assembly, including the slab or wood subfloor, underlayment and ceiling below. Do not assume a thicker board meets a condominium’s requirements. Ask for the relevant test report and building approval.
- Appearance: texture, print variation, bevels and sheen are design choices available across different constructions. Compare physical samples.
Heating, comfort and price
If you have radiant heating, confirm that the exact product and underlayment are approved together and follow their temperature and thermal-resistance limits. Thickness alone is not enough to choose a heating-compatible floor.
Compare installed totals rather than assuming every 12mm option costs more. Removal, disposal, preparation, transitions and baseboards can change the project price. Review JV’s flooring installation scope and ask which items apply to your estimate.
Compare actual specifications, not just a thickness label
For example, our listing for SFI Ecolam Saguaro specifies 6.3mm thickness and AC3, while SFI Splashcore Winchester specifies 10mm total thickness and attached underlayment. These are examples of why the board, pad and performance information must be read separately; they are not an 8mm-versus-12mm performance test. Confirm current specifications and availability before ordering.
Which should you choose?
Choose the product that meets your room’s use, installation conditions, finished-height needs and budget. If both candidates satisfy those requirements, compare the samples, warranty coverage and complete installed price. Our laminate buying guide explains the other selection criteria.
Browse laminate flooring options, then request an estimate with the products you are comparing. JV Wood Floors & Cabinets can help you check the details before you commit.