Framing Installation for a Jacuzzi

Level Framing

• The most important aspect to framing any tub in--Jacuzzi or not--is to ensure that the tub frame is completely level as it is attached to the wall studs of the home and the subfloor. Tubs are meant to be installed level, with a predefined angle already cast in the bottom of the tub to drain the water.

The Base

• Including space for the mortar or mud base is a necessary part of framing for a Jacuzzi tub. Most tubs require the use of mortar or some type of mud (such as drywall mud) under the base of the tub, usually 2 to 3 inches thick, which helps support the weight of the tub. This has to be added to the overall height of the tub frame when you are building the initial frame for the Jacuzzi.

Deck Space

• Personal preference more than anything else dictates the actual size of your deck upon which the Jacuzzi rests. While some people prefer to build the frame just large enough to support the tub, others prefer a couple feet of space surrounding the actual tub so that you have a deck platform that surrounds the tub. Plywood, OSB and concrete underlayment for the tile are placed on top of this platform, and then the Jacuzzi is installed.

Doubling Up

• The larger the tub, the more weight it will need to support. While most Jacuzzi tubs can be supported by a single row of framing built around the edge of the tub out of 2-by-4-inch boards, if you have an oversize tub you may want to consider doubling up on the framing. By doubling the framing (putting two rows side by side) you add increased strength to help support the weight of a larger tub (such as one large enough for two people) along with the mortar base beneath.