What a coping has to do
It sits at the junction between the pool structure and the deck, and it is the one piece of a pool surround that gets touched by hand constantly.
So it is shaped rather than cut square. The front edge is worked into a profile that overhangs the shell and gives a grip, and the piece is thick enough to take being leaned on and levered against for the life of the pool. Pool and spa paving sets out how the whole edge is assembled.
Thicker than paving, and by a long way
20 mm carries the porcelain half of this range, and the stone half runs to two full inches, with groups at 1 1/4 inch and around three quarters.
Two inches of quarried stone is four or five times an ordinary floor tile. The depth is there because a coping is a cantilever: it projects over the pool edge with nothing under the overhang, and depth is what stops it breaking off where somebody grips it.
Unfilled travertine belongs here
Honed and unfilled is a finish group on this page and it appears almost nowhere else in the catalog, since a travertine used indoors is normally filled and honed flat.
A coping is the exception. The open cavities that get filled on a floor are left open here, because a textured face is what a wet hand and a wet foot meet at a pool edge. This catalog publishes no slip figure of its own, and any class a project has to document comes from the producer.
The worked stone finishes
Tumbled is the largest stone finish here, with fine picked, flamed, brushed, sandblasted and natural faces behind it.
Every one is a way of roughening a surface. Tumbling rounds the edges and wears the face. Fine picking strikes it with a point. Flaming spalls the minerals with heat. Sandblasting cuts it with abrasive. A pool edge is the one place in a building where all five techniques are in routine use.
Porcelain and stone side by side
Porcelain is the largest material here, then travertine, marble, limestone, sandstone and granite.
Travertine has been the default pool coping for decades because it is warm underfoot, pale and textured. A porcelain coping answers the same brief in a body that takes up almost no water, and it repeats exactly from piece to piece where a stone never does. Travertine pavers and porcelain pavers carry the decks that go with each.
The colors are the warm ones
Beige leads the colors here, then gray, brown and white, with blues and multicolors behind them.
Pale and warm dominate a pool edge for a reason that is physical rather than decorative. A surface in direct sun sends back what it does not absorb, and a dark coping around a pool is the piece people put their hands and bare feet on at the hottest part of the day. It is why the traditional pool stones are cream travertines and pale limestones.
Sizes are lengths, not areas
12x24 is well ahead of anything else, then 12x48, 16x24, 13x24 and 12x12, and the boxes hold one or two pieces instead of the six or eight a floor tile comes in.
That is because coping is bought by the running foot of pool edge rather than by area. The length of the piece is the number that matters, and the perimeter of the pool decides the quantity. Corners and steps are counted separately.
The effects on the porcelain half
Limestone look leads the printed effects, then travertine, slate, wood, quartz, bluestone, stone and concrete looks.
That is a list of the stones that edged pools before porcelain existed, with travertine and limestone at the top exactly where they were. A printed coping is aiming at the material it replaced rather than at anything new. The wood look group is the exception and the one with no precedent behind it. Nobody ever edged a pool in boards that survived the water for long, so that effect is not replacing a traditional material; it exists because a boardwalk is what people picture at the edge of water, and porcelain is the first material able to deliver the picture without the rot.
