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Question DetailsAsked on 6/28/2013

ball park for wood pool deck

10 by 12 on grass coming off other side of 3 stairs
high deck connected to above ground pool .nothing fancy also will be fenced with half foot rail all around

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1 Answer


I got lost - 10x12 on grass, but you also said high deck - ? Or was that both - on-grade deck plus a high deck ?

For on-grade wood deck supported on concrete blocks or pads (no deep foundation) probably about $10-15/SF.

If high deck at pool rim level, then should have piers in the ground for stability under playing users, and about 3-1/2 foot high railing (varies a bit by local code) - probably closer to $20-30/SF including railings, stair.

Both without any permit cost (if needed), and assuming not rigidly connected to house or pool, so minor movement over the course of the year OK.

I would be careful of what material you use - the pool chlorine and acid from dripping water off users will corrode fasteners and brackets, and can also cause running and deterioration of any preservative or finish which can then track on feet, or stain pool sides (inside and out) if elevated to pool rim level. Therefore, I would require stainless fasteners, corrosion-resistant pre-painting and post-fastening touchup of metal support brackets with something like a marine metal paint, or even better a two-component epoxy designed for industrial plant use (commonly known as dairy and packing plant epoxy paint). For timbers I would use plastic or copper preservative treated timber (the green, not brown product), and for decking and rails, considering the water exposure and desire for splinter-free walking, I would use plastic like Trex or equal. If you use wood, I would use one that does NOT have nasty splinters or readily raised grain when wet (which fir, cedar, and redwood all do) - perhaps a tropical wood such as Ipe, Teak or Mahogony, though the latter's splinters really burn and fester up if you do get one. For more info on decking material alternatives and tropical decking woods, google this phrase -

tropical decking woods

Here is a convenient recent comparison of deck prices (for the decking materials purchase cost only) -

Plastic decking like Trex, or tropical hardwoods, will double to triple the decking material cost and raise installation cost a bit as predrilling is recommended, though total cost impact on the total project probably 1.5-2 x higher respectively.

One alternative to the higher-priced decking would be to use cheap deck boards like treated timber or cedar or even marine plywood, and then cover the entire deck with a waterproof-backed textured pool liner or mat draped over the entire top surface and draped down onto and nailed into the fascia boards of the deck with a 2x4 batten strip screwed into the deck through strip and mat around the edges. The mat would need to be totally waterproof or the board underneath will rot very quickly. About $0.50-1.00/SF for the mat, with probably a 3-5 year life, or about $2/SF for a heavy duty liner like Hypalon impoundment liner with about 10-15 year life. Of course, you would have to consider the likelihood of kids cutting the mat by accident with roughhousing if you go with the lighter duty pool-liner thickness.

One other alternative, if you are house handy, would be to use unfinished but sealed cedar or redwood and just hit the deck boards with a belt sander every season start, with fresh sealer.

Answered 7 years ago by LCD

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