The spa base is installed directly onto the deck, allowing you to install it close to a hot tub.Spa Base$199.00PriceQuantity*Add to CartDimsSpa Base: 18" x 10" x 1/8" Holes are 16" on center. InstallBolt the spa base either 12” or 16” on center, through the deck boards, into the joists. We do not supply the hardware for the spa base, because we do not know what it’s being bolted to (wood, composite, concrete, etc). If it’s being bolted to wood, use 3.5” lag bolts. If it’s being bolted to concrete, use 3.5” concrete expansion bolts. The hex screws that came with the rotating base are used to secure the rotating base to the spa base.
