Bathroom Supply Line Height

Getting the bathroom rough-in plumbing right is important. Find the standard dimensions for toilets, sinks, tubs, and showers with this guide. Make an accurate plumbing rough-in using the correct dimensions for the bathroom fixture supply lines, drain lines and clearance from obstructions.

The proper placement of drain and water supply lines in a bathroom ensure proper functioning of the sink in your bathroom vanity, and place you in compliance with local residential building codes. When installed at the correct height, these lines allow you to easily hook up basins, toilets and any other fixtures needing a supply of water. Water supply risers from the shower valve to the shower head outlet, whether exposed or concealed, shall be attached to the structure using support devices designed for use with the specific piping material or fittings anchored with corrosion-resistant screws of a minimum nominal length of 3/4 inch (19 mm).

The toilet supply line height should be 8¼ inches above the floor. It's often placed between 5 and 10 inches above the floor. The water supply line is placed 2″ to 3″ higher than the drain pipe for sinks.

As for the bathroom, it's 80″ for the shower, 20 to 22″ for the spout, and 4″ above the tub rim. The rough-in measurement for bathroom sinks is the distance from the base of the floor to the sink. Most plumbers use a height measurement of 18 to 20 inches for sink drain lines and 20 to 22 inches for the water supply pipe.

This article will explain the correct dimensions for your bathroom sink drain pipes, water supply pipes, and other essential parts in DIY Plumbing. What is the Right. The usual heights and dimensions for plumbing fixtures, drains, plumbing vents, plumbing cleanouts and plumbing supply lines for rough-in for toilets, countertop or drop-in lavatory, pedestal lavatory, bathtub, shower and kitchen sink.

Includes the heights for shower curtain rods, toilet paper holder and towel bar. Master the art of bathroom plumbing! Discover precise dimensions for toilets, sinks, showers, and tubs. DIY or call us at 951-309-8548 for expert help!

Learn the key bathroom rough-in plumbing dimensions for toilets, sinks, showers, and tubs. Get expert tips to achieve a smooth installation. Supply line (height): Ideally, 8 1/4 inches above the floor; cold-water-only pipe creates one hole between 5 and 10 inches above the floor Supply line (horizontal): Measured from centerline running vertically through the center of the toilet, supply line hole should be 6 inches to the side of centerline; check toilet to confirm location water.