What is CarpetLOK?

CarpetLOK is a system for installing carpet tiles.  Other methods eliminate wet glue by substituting dry adhesives, but only CarpetLOK eliminates adhesives entirely.  CarpetLOK also precisely aligns carpet tiles with raised access floor panels, which makes change easier & sharply reduces waste.   One tile; one panel; one move.

CarpetLOK is also a physical product that facilitates actual installation.  Each anchor is a small, cruciform component which integrates with the raised floor system & forms a mechanical barrier—every 8’ in both directions—which engages the carpet backing & keeps tiles in place.

How long has the CarpetLOK system been in use?

Large-scale installations commenced in 2010.

What are anchors made of?

Anchors are made in the U.S. from engineered polymers. Virgin resin is used, as the variable content of recycled plastics cannot deliver the precision required in anchor dimensions.

As each anchor weighs only 1/4 ounce, just 8 ounces will install & align 1,000 square feet of floor-covering.

Will I be able to tell anchors are in place?

No.  Anchors cannot be detected—either visually or by “feel”—once carpet is laid.

We’ve often been on site when a designer or facility manager demonstrating the system to colleagues wants to reveal an anchor…& can’t find one.  (This is the only situation in which you may need to lift extra tiles!)

How far do anchors extend above the floor panels?

The top of each anchor extends a tiny fraction of an inch, by design reaching slightly below the top of the carpet tile backing.

What keeps anchors from being damaged if run over by hard-wheeled dollies or book carts?

They’re well-protected: the top of each anchor lies within the plane of the backing material & below the carpet pile.

Note that anchors are typically exposed to an active construction environment for weeks between floor & carpet installation.  The occasional anchor gets replaced (extras are supplied), but they’re remarkably resilient.

How do I get info for my planned project?

For your 1st CarpetLOK project, we recommend reviewing the video courses on this site & browsing the documentation in our Library.  Your raised floor dealer or rep can usually answer any remaining questions…but we’re also available to help with specific application concerns;  write to support@CarpetLOK.com

Design & Installation

How are anchors attached to the floor system?

Anchors have locating studs for precise positioning on pedestal heads, but are held in place by the floor panels.  (Unless all panels at an intersection are removed, anchors stay put.)

Are more anchors better? Can I put anchors @ every intersection?

In a word…no.  It’s human nature to think “if they recommend every 8’ on center, then every 4’ will yield a ‘stronger’ or more secure installation.”  However, extensive testing—both in the lab & in the field—proves this is not the case.

The CarpetLOK grid creates “islands” of individual, unrestrained tiles between each set of anchors, & the recommended spacing allows just enough room for lateral forces to be optimally absorbed without causing tiles to dislodge.  Adding more anchors, except in special cases (such as the foot of a ramp), can negatively impact performance.

Why not put adhesive tabs (such as TacTiles) @ every intersection?

The short answer is that—just like adding more anchors—adding adhesive tabs throughout the field will negatively impact performance.  TacTiles combine individual carpet tiles into a single membrane; this can be undesirable, as it allows carpet “waves” to be propagated by rolling loads. In contrast, carpet tiles installed with the CarpetLOK system perform as individual modules & this problem is avoided.

Adhesive tabs are essential, however, for stabilizing the perimeter of every room between each wall & the 1st row of anchors, & also for securing all cut carpet tiles. Releasable adhesive can alternatively be used (sparingly).

Should CarpetLOK anchors be used on a ramped surface?

Anchors are commonly installed on ramps, & recommended to maintain carpet alignment with adjacent areas.  However, carpet installers must follow the carpet manufacturer’s glue-down installation instructions for ramps.

Is special protection required for move-ins?

No.  The same protection recommended by virtually all carpet manufacturers—laying boards of masonite or lauan plywood along the path that furniture-laden dollies will travel—works perfectly on a CarpetLOK installation.  (Light-duty Visqueen or similar plastic sheeting may also be used, but this is NOT a substitute for hardboard protection of move-in aisles.)

Can anchors be easily replaced by facility staff?

Yes.  In the unlikely event an anchor is broken during a move or by contractors working in the space, we provide a small supply of spare anchors on each job, along with simple instructions (see CarpetLOK College course #202).

Specifying & Ordering

Can I place an order just for anchors?

Generally, no.  CarpetLOK anchors should be ordered with the raised floor, or (in some circumstances) with the carpet tiles.

What brands of carpet tile can I use with the CarpetLOK system?

The sustained system performance for which CarpetLOK is known hinges on using top-quality carpet modules with sophisticated backing materials, consistently cut to extremely precise dimensions. We extensively test every carpet, in the lab & in the field, before approving it as “CarpetLOK Certified.”

To ensure that installations perform to your expectations & ours, our contract of sale requires that CarpetLOK anchors only be used with carpet tiles that have received this certification. For a current list of carpet tile brands approved for use with the CarpetLOK system, ask your Haworth raised floor rep, or contact us.

When it’s time to replace carpet, am I still restricted to approved suppliers?

While all carpet wears out, anchors don’t.  Unlike any other carpet tile installation method, CarpetLOK is installed once & can last for the life of the facility.

It’s essential that only CarpetLOK Certified replacement carpet be used for reasons cited above: strong, reliable & consistent backing performance.  The fact that completely standard carpet can be used, straight out of the box, makes replacement easier, faster, & less costly than with any other system.

My project has a mix of raised floor & slab. Do I need to order two kinds of carpet tiles?

Not at all.  Carpet tiles supplied for use with the CarpetLOK system are exactly the same as standard carpet tiles of the same brand. Any CarpetLOK-Certified 24” tile, straight out of the box, will perform equally well with CarpetLOK anchors on raised access floor, & on concrete slab.

Where slab carpet was planned in a different size, most facility managers choose to simply order all carpet as 24” tiles, making all areas interchangeable & reducing inventory requirements.

What’s the cost per square yard?

The cost of CarpetLOK anchors is generally included in the quoted price of the carpet &/or raised floor.  Material cost may be slightly higher; installed cost may be the same or lower.

Tiles with the CarpetLOK system are slightly more expensive.  However, far fewer expensive adhesive tabs are required than in a non-CarpetLOK installation, & most carpet installers find their productivity jumps between 30-50%. These factors make the system extremely competitive.

Do CarpetLOK installations really cost less over time?

Absolutely.  Occupancy cost always varies with churn rates, but the benefits of  a) much faster moves,  b) sharply reduced attic stock, &  c) little or no waste when changes are made can be very substantial.