Bathtub Rough In Plumbing

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Bathtub rough in plumbing. Once you ve assembled and installed the guts of the bathtub the rest of the bathtub plumbing rough in is straightforward. The bathroom plumbing rough in dimensions you need to know. You ll rough in the tub drain with 1 1 2 inch pipe with male threads that extend 1 2 inch above the level of the floor. But it doesn t have to seem so daunting.

Get the rough in right and you are 90 percent of the way there. There are generally accepted plumbing rough in measurements for sinks toilets and tub showers. The center of the lav s drain is located 18 approximately above the finished floor. Specific requirements for the trap drain line and vent will vary by local building codes.

The last step of connecting the sink toilet or tub is almost superfluous. The p trap usually fits snugly in the space between the floor joists and you connect the drain to the rest of the bathroom plumbing and the vent to the vent network. The drain will also require a p trap and must be vented. The bathroom sink rough in dimensions are as follows.

Also notice the drain is centered right in the middle of this 30 inch vanity. Now that the plumbing is roughed in you can finish the rest of the bathroom get approval from an inspector move forward with the toilet install and hook it up to the drain and supply lines.