Skip to Content

What is the standard rough opening for a tub?

The standard rough opening for a tub depends on the type of tub you have. For a standard alcove tub (one that is enclosed on three sides), the rough opening is usually 30″ x 60″. For drop-in tubs, the rough opening is typically bigger – usually 30″ x 66″.

For corner tubs, the rough opening is usually 30″ x 60″ on both sides. For freestanding tubs, the rough opening is usually 30″ x 72″ to accommodate the increased size. In addition to the rough opening size, you’ll also need to consider the room’s dimensions and make sure the tub fits with at least two feet of clearance from the walls and any other bathroom fixtures, cabinets or appliances.

How much space do you need to install a bathtub?

Installing a bathtub requires a fair amount of space and preparation prior to installation. The dimensions of a standard bathtub are around 60” long, 30” wide, and 14” deep. However, bathtub sizes can vary, so care should be taken to determine the exact size of the bathtub you intend to install.

The area needed to install a bathtub should allow for ample space to work and move. In addition to the standard dimensions of the tub, a minimum of six inches should be considered on each side, as well as 12 inches behind the tub.

This will give some additional space so the installer can make the necessary plumbing connections. If a lengthy installation is expected, it may be beneficial to build a wall of protection between the bathtub and the rest of the room in order to prevent potential accidents or interference with the project.

If the bathtub is intended to have a shower or tile installation, additional space should be accounted for. A minimum of 10-12” between the bathtub and any walls, as well as 3 feet from doorways, will give room for access and installation of the shower enclosure.

It is also important to consider the size of any door frames that may open into the installation space, as a standard tub may be too large to fit through a narrower door way.

Overall, the amount of space needed to install a bathtub varies based on the size of the tub and the design elements incorporated. With careful planning and measurement, you should be able to determine the amount of space needed to successfully install a bathtub in your home.

What is the rough in dimensions for a tub shower combo?

The rough in dimensions for a tub shower combo can vary depending on the specific model and the space available in the bathroom. Generally speaking, bathtub and shower rough in dimensions should be measured to match standard plumbing centre lines and the rough in should allow for the trunk line set-up.

For example, the standard rough in for a tub shower combo usually requires a 6-inch gap between the centre of the waste and vent lines and the centre of the water supply lines, and this gap should be a minimum of 12 inches from the floor.

Additionally, many tub shower combos require a 2 inch drain line and a 1/2 inch hot and cold supply line for the faucet. Make sure you measure the space in your bathroom before deciding whether a tub shower combo will fit or not.

How much space is needed between tub and drywall?

It is recommended to leave at least a half inch gap between the edge of the tub and the drywall. This gap should be filled with a flexible, waterproof caulk to ensure a water-tight seal between the tub and the drywall.

Additionally, the area of the tub that comes in contact with the drywall should have a layer of waterproof membrane or waterproofing compound applied to it to further protect the drywall and help prevent the possibility of water damage.

It is also important to check that drywall does not cover any plumbing or drain lines to allow for proper ventilation.

What is rough in for bathtub faucet?

Rough-in for a bathtub faucet is the amount of space required to safely and securely mount a faucet onto a tub. This entails measuring and marking both the wall behind the tub and the tub itself so that the installation of the faucet is accurate and stable.

Rough-in is typically measured in inches and typically includes measurements such as the center-to-center distance between the hot & cold water pipes, the distance from the wall to the hot & cold water pipes, and the distance from the floor to the centerline of the hot & cold water pipes.

The overall width and height of the faucet are also required for a proper rough-in. It is important to get the correct measurements before shopping for the faucet to ensure that the faucet fits properly and the installation is successful.

What size hole do you drill for tub faucet?

When drilling a hole for a tub faucet, the size of the hole you need to drill can depend on the type of faucet you are using. To determine the hole size that you need to drill, consult the manufacturer’s installation instructions or contact the manufacturer directly.

Generally, a 2-hole tub faucet requires two holes to be drilled, each somewhere between 1-1/4 and 2 inches in size, depending on the size of the faucet. For a 1-hole tub faucet, the hole will need to be wider or 3- to 8-inches in size.

In either case, it is important to measure and mark the area on the wall carefully, referencing the manufacturer’s instructions, before drilling. Consider masking off the area surrounding the proposed holes with painter’s tape, to avoid damaging the wall or tiles when drilling.

You will also want to use a low speed drill and the correct drill bit size to avoid damaging the faucet or creating a hole that is too big, so if you are uncertain, use a smaller bit size which can always be adjusted by using a larger bit size afterward.

How far should a tub faucet stick out?

The best practice for a tub faucet is to have the spout stick out at least 6 inches from the wall. This allows for enough room to fill a bathtub, as well as preventing water from splashing out of the tub onto the floor.

Additionally, the faucet should never be so far out that it extends into the tub, as this can cause more water to be splashed out than necessary. When determining exactly how far out the faucet should come from the wall, it is important to consider any accessories that may be attached to the faucet, such as a sprayer, as those may require additional room to fit behind the faucet.

How long should tub spout pipe be?

The length of a tub spout pipe will vary depending on the individual application, but in general, the pipe should extend far enough that it is long enough to reach the center of the tub. This ensures that when the water is turned on, it will flow evenly into the tub.

In some cases, a greater length may be needed to reach the center of the tub, so it’s important to measure both the length of the pipe needed and the distance from the pipe to the center of the tub before purchasing the spout.

Once the length has been determined, an appropriate size of pipe should be purchased for the job.

How far should a tub filler extend into the tub?

A tub filler should extend into the tub about 6″ – 8″, depending on the size and depth of the tub. For a deeper 4-6 foot deep tub, an 8″ extension from the wall is ideal. However, for a shallower tub, a 6″ extension should work just fine.

In any case, the spout should reach far enough into the tub so that you can comfortably fill it. You also want to ensure that the spout is positioned roughly 12″ – 15″ away from the faucet and drain, in order to avoid accidental splashing or any disruption to the water flow.

Having a spout that extends too far into the tub can also create a slipping hazard, so it’s important to make sure you have the correct extension for the best results.

How high is a rough in tub valve?

A rough in tub valve typically has an installation height of between 6-8 inches, depending on the size of the tub and other features. This height is measured from the finished floor up to the center of the valve.

In order to achieve an ideal installation height of 6-8 inches, many tub valves are installed into the wall studs during the framing stage before drywall is hung. This allows for a more precise and uniform installation.

Additionally, larger tubs may require a higher installation height, which may need to be installed into the rough framing. It’s important to provide the necessary clearance for the tub valve during the installation process, which can vary depending on the specific tub model.

Why is there a gap between tub spout and wall?

The gap between a tub spout and wall is necessary to prevent damage to the spout, pipes, and wall. Without the gap, water splashes could be forced up and into the spout and wall, potentially leading to costly water damage.

Furthermore, when shut off valves are behind the wall near the tub spout, the gap also provides room for those valves to be accessed and serviced if needed. Additionally, in colder climates, the gap can provide some insulation to protect the pipes and spout from freezing temperatures.

Without the gap, freezing temperatures could force water in the pipes and spout to expand and break, leading to expensive repairs.

What height should faucet be for a tub shower combination?

The ideal height for a faucet in a tub shower combination is generally between 30 to 36 inches above the floor. This measurement takes into account comfortable access for bathers of all sizes and a sensible flow of plumbing lines.

It is important to ensure that the spout is of the correct height and distance, i. e. positioned 7-8 inches above the tub rim, so that there is adequate water pressure and the bather is not splashed.

If the shower faucet is intended for a freestanding tub, it will usually recommended to be 28-34 inches above the floor. Special consideration must be given to children’s bathrooms, where comfortable access for the children must be taken into account.

It is also worth mentioning that the hot and cold water handles of the faucet should be approximately 8-12 inches apart for better usability. Ultimately, the best height for the faucet depends on the type of bath and the individual preferences of the bather.

What is the zone around a bathtub shower and what are its dimensions?

The zone around a bathtub shower is an area where no combustible materials should be stored, and it is important for safety reasons. The zone should extend to the side walls and back wall, as well as any ceiling located within the zone.

The exact dimensions of this zone will vary, depending on the make and model of the bathtub shower. Generally, the suggested distance is two feet away from the sides and back walls, and eight feet away from the ceiling.

It is recommended that any combustible items, such as towels and other fabric items, are kept outside of this zone. Additionally, anything sitting on the counter top should also be kept outside of this zone.

How do you measure a shower tub combo?

Measuring a shower tub combo requires several steps. First, measure the length, width and height of the area where the combo will be placed. Ensure these measurements include any framing or other materials that may be used in the installation.

Next, measure the depth of the area where the combo will be placed and make sure it is suitable for the size of the combo. This can be determined by using the rough-in measurements provided by the manufacturer (check the product data sheet).

After determining the size of the overall area, account for the size of the bench, the ledge area and any other features the manufacturer might include in their product. Measure any separate components, such as valves, and other supplies such as grab bars and shower heads.

Finally, ensure that there will be enough space to move around the tub and access any components, including the door and control knobs. This procedure should include measuring both sides of the door and width of the opening.

How do you rough frame a bathtub?

Rough framing a bathtub requires several steps, and it is important to carefully measure and mark the location of the bathtub before beginning the process.

Begin by preparing the wall and floor area where the bathtub will be framed. The area should be cleared of any existing plumbing and flooring, and the walls should be leveled and have a slight slope to allow water to drain.

Once the area is prepared, you will need to locate the studs in the walls and mark them. You will also need to measure and mark the area of the floor where the drain and overflow will be placed.

Next, use a chalk line to draw a line directly beneath the studs and at the bottom of the bathtub. With the lines marked, you can now start to assemble the frame for the bathtub.

Secure the top and bottom plates of the frame to the studs with nails or screws and then apply shims to ensure the studs are level and straight. Once the frame is in place, secure the two sides with additional nails and screws.

Before attaching the bathtub to the frame, make sure to test the drain and overflow to make sure that they are functioning properly. Once all checks are complete, secure the bathtub in place by using either nails or lag screws.

Finally, wrap the frame and bathtub with waterproof materials such as plastic or tar paper to ensure the frame and bathtub are properly sealed and protected.