Decking Around a Pool, and What Changes

A pool deck looks like a deck and is specified differently, because three conditions are permanently in play that a garden deck only meets occasionally.

Bare feet, all the time

Everywhere else on a deck, surface temperature is a comfort question. Around a pool it is the whole experience, because nobody is wearing shoes.

That pushes hard toward lighter colors in any material, and it is the strongest single argument against dark composite in an unshaded pool surround in this climate. The surface temperature piece covers what color does.

Constant wetting and drying

A pool deck gets wet dozens of times a day in season and dries in between. Wood in that cycle moves more than wood that gets wet in a storm and then dries out over two days, and a finish on it works harder.

It also stays damp in shaded corners, which in this humidity means algae, which around a pool is a grip problem rather than an appearance one. Textured board surfaces help. So does keeping the gaps clear so water drains and air moves.

Slip resistance

Any smooth surface is slick when wet. Around a pool that matters more, and it is worth asking specifically what the slip characteristics of a proposed board are when wet rather than assuming that a textured appearance means a textured performance.

What that means for material

There is no single right answer, but the pressures point in a consistent direction. Lighter colors over darker ones. Textured surfaces over smooth. Materials that do not splinter, since splinters and bare feet are a poor combination as a wood deck ages. And a preference for surfaces that do not need a coating, because maintaining a finish on something that gets soaked every afternoon is a losing arrangement.

The structure underneath

If the decking is raised rather than laid on grade, everything in the framing guide applies with more force, because the framing is living in a wetter environment than a normal deck. Ground contact rated material where it belongs, post bases holding wood clear of standing water, and corrosion-rated fasteners throughout are not optional details here.

A deck can undo a pool barrier

This is the part that gets designed by accident. Whatever keeps small children away from the pool, usually a fence and a self-latching gate, works on the assumption that there is nothing beside it to climb. Build a deck up against that line and the barrier now has a step at the bottom of it. The same thing happens with a bench built into the deck edge, a planter, or furniture that ends up parked in the wrong place.

So the barrier line and the deck edge get looked at together rather than separately. Where the deck has to come close, the usual answers are to raise the guard along that run, to hold the deck back far enough that the fence still stands on its own, or to bring the barrier onto the deck as part of the structure. Working it out on the drawing costs nothing. Working it out after the deck is built means rebuilding an edge.

The screened option

A screen enclosure over a pool is common in Florida for good reasons: it keeps leaves and insects out, and it changes how much of the season the pool gets used in the evening. It also changes the structure below it, because a roofed or screened enclosure brings its own loads down through whatever is carrying it. The screened porch guide covers what is involved.