2 Answers. Show activity on this post. All tubs come with “rough in” size specifications which indicate necessary framing/opening dimensions for your unit specs. They can often be found online.

What are the rough in dimensions for a tub?

60 inches long(5ft), 30 inches wide (2.5ft) with a water depth of 16 inches (1.3ft). Small sizes start at 45 inches long (3.75 ft), 30 inches wide (2.5 ft) with 14 inches of water depth (1.16ft).

What is the rough in for a tub drain?

Plumbing Rough-In

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. The drain will also require a P-trap and must be vented; specific requirements for the trap, drain line and vent will vary by local building codes.

How much space do you need to install a bathtub?

Bathtubs. While there are no code requirements for tub size, minimum clear floor space alongside a bathtub should be at least 60 inches long (the length of a standard tub) and 30 inches wide.

What are the standard dimensions of a tub?

Standard tubs usually have external measurements around 60 inches long, 30 inches wide and 14 to 16 inches high. When shopping for a soaking tub, find a tub that measures between 60 inches long and 72 inches long. Persons over six feet tall may want to consider an oversized bathtub for the most comfort.

How far away from wall should tub drain be?

Bathtub Drain Measurements

The drain hole should be a minimum of 12 inches away from the wall and 9 inches in scope. To rough in the drain, use a 1.5-inch pipe.

How much drop does a tub drain need?

¼ inch per foot

Improper drain slope

But do you know the proper slope? The ideal slope of any drain line is ¼ inch per foot of pipe. In other words, for every foot the pipe travels horizontally, it should be dropping ¼ inch vertically.

How much space do you need for a tub and shower?

For a shower, to be installed, at least 30-36 square feet is required. For a full bath consisting of both a shower and a bathtub, you will need at least 40 square feet.

How is a bathtub measured?

The basin length should be measured at its widest point in the middle of the tub, from left to right. The length always refers to the longest point of the tub. To find the basin width, measure from the midpoint of the length of the tub, front to back.

How deep should a bath be?

While standard tubs hold up to 30cm/12″ of water, a good soaking bathtub will hold at least 35cm/14″. For most adults, the ideal water depth will be between 43cm/17″ and 50cm/20″. The tub itself should be around 50cm/20″ to 60cm/24″ deep.

How high off the floor should a water supply line be?

The water supply line runs out of the wall into a hole in the back of the vanity, typically placed at a height of 22 to 24 inches from the finish floor.

How far can tub drain be from vent?

For a 1 ½-inc pipe the vent should be 42 inches away at the most while a 2-inch pipe must have a maximum distance of 5 feet. For pipes that have a diameter of 3 inches the distance is 6 feet and for a 4-inch pipe the most it should be away from the vent is 10 feet.

How do you rough a shower tub combo?

Quote from the video:
Quote from Youtube video: Before we cover in tile. So here's the mixer here it'll say which sides up and down this is right here shower up tub down so it would sit this way your tub spout shower spout.

How high should a rough in tub shower valve be?

A height of 28 inches, or 2 feet 4 inches, is standard for valves in bathtub shower units. For shower stalls, install the valve at the standard height of 48 inches, or 4 feet. Install faucets at the same height as the valve, equidistant from the valve.

How far should shower valve sticks out from wall?

wall position, including tile (2-1/16″ [52mm]). The center line of the supply and discharge piping should be a maximum of 2-3/16″ (56mm) and a minimum of 1-7/16″ (37mm) behind the finished wall surface.

How do you frame a tub?

Quote from the video:
Quote from Youtube video: Make sure that you measure the bathtub. And make sure that you allow at least a minimum of a quarter of an inch. For the bathtub installation. Make it a quarter of an inch larger.

Does a bath need a frame?

The main job of the feet is to not only give a stable base between the bath and floor but to also allow the bath to be adjusted so that you can level it up. Aside from the galvanised frame and feet in most situations the bath is also fitted with a wooden frame to give it additional rigidity and strength.

How do you build a tub surround?

Drop in tub surround with full access

  1. Step 1: Frame out surround. …
  2. Step 2: Install proper substrate on framing. …
  3. Step 3: Install finished surround material. …
  4. Step 4: Finish top deck. …
  5. Step 5: Place tub and Shim/level. …
  6. Step 6: Secure the bottom of the tub. …
  7. Step 7: Install drain/overflow. …
  8. Step 8: Install high flow tub filler.