How to Make a Split King Bed

A split king bed offers many advantages over a regular king-sized bed. It provides two separate mattresses that can be adjusted individually to provide the best possible comfort for two different sleepers. This makes it ideal for couples with different sleeping preferences or those who simply want more control over their beds. Moreover, since the mattresses are split, it’s much easier to move and transport than a regular king bed.

How to Make a Split King Bed

A split king bed is a great solution for couples who want their own mattress but need to save space in the bedroom. A split king bed consists of two twin mattresses placed side by side on the same frame, allowing each person to adjust their own mattress firmness without disturbing their partner. This type of setup is also known as a dual king or a “split” mattress. In this blog post, You will learn how to make a split king bed in detail.

Tools You Will Need

  • 2 Twin XL Mattresses or Split King
  • Appropriate box spring for your mattress size
  • Bed frame to fit the measurements of 2 twin XL mattresses side by side.
  • A King Size Headboard – if needed
  • Measuring Tape
  • L brackets (if needed)
  • Drill and drill bits
  • Hex head screws and bolts
  • Drill bit screwdriver attachment
  • Phillips screwdriver

Step-by-Step Processes for How to Make a Split King Bed

Step 1: Inspect Your Bed Frame

If you’re using a traditional bed frame, ensuring your king-sized frame can be split is important. You’ll need to look for two separate rails that are connected with only one center support piece. A split king bed frame should have at least four posts – two on each side of the bed for extra stability.

Step 2: Choose Your Mattress

The next step is to choose your mattress. You’ll need to find a king-size mattress that can be split into two twin-size mattresses. Ensure the mattress you choose is compatible with your bed frame and supports your sleeping habits. Once you’ve chosen your mattress, it’s time to start assembling the bed frame. Ensure all your parts are in working order and properly secured. Use a level to ensure that your bedframe is even on both sides if necessary.

You'll Need to Find a King-size Mattress

Step 3: Place the Mattress

Now that your bed frame is prepared, it’s time to lay down your mattresses. Place them side-by-side and make sure they are evenly aligned. If you’re using a split box spring, you’ll need to place it in between the two mattresses. Now that the mattress is placed installing the bolts is time. Starting at one end of the bed, insert a bolt into the center support piece and then secure it with a washer and nut. Repeat this process for each side of the bed until all four bolts are securely in place.

Step 4: Secure the Rails

Once you’ve secured all four bolts, it’s time to attach the rails. Place the two separate rails onto their respective sides of the bed and secure them with screws. Make sure that all of the screws are tightly secured before moving on. Next, you’ll need to attach the center support piece between the two rails. This will ensure that the bed is sturdy and secure. Place the center support piece and then screw it into place with screws on both sides.

Step 5: Add the Bed Slats

Now you’ll need to add the bed slats. Begin by placing them side-by-side, making sure they are evenly spaced apart and that each one is securely fastened. When you’re finished, the bed should be ready to go. The last step is adding a sheet set and comforter or blanket to complete your split king bed. Choose a comfortable sheet set that will match the rest of your bedding, and then tuck it into place.

Safety Precautions for How to Make a Split King Bed

  1. Make sure the mattress is on a flat and even surface before assembly to ensure stability.
  2. Wear gloves while assembling the bed frame to prevent cuts or scratches from sharp edges.
  3. Read all instructions carefully beforehand and follow each step as directed to ensure proper construction.
  4. Verify that all parts are present and in working order before beginning the assembly.
  5. Use a power drill to ensure each bolt is securely tightened in place.
  6. Recheck bolts and check for loose screws or nuts after assembling, making sure everything is secure.
  7. Place mattresses on the bed frame according to recommended measurements for a split king bed.
  8. Make sure to use the appropriate tools and materials for assembling a split king bed, such as wood screws and nuts.

The right tools, knowledge, and safety precautions are essential to ensure success when Making a Split King Bed.

Place Mattresses on the Bed

How Often Should You Inspect the Bed Frame for Wear and Tear? 

It is important to inspect your king-size bed frame for signs of wear and tear to maintain its overall integrity. How often you should check depends on how frequently it is used and the material it’s made from. Generally, a wooden or metal bed frame should be inspected at least once every couple of months. 

If your bed frame is made from a more delicate material, such as fabric or leather, inspect it at least once every month to ensure it’s in good condition. If you find any signs of wear and tear, take the necessary steps to repair it immediately in order to avoid further damage. Regular inspections will help ensure that your split king bed is a comfortable and safe place to sleep.

How Do You Prevent Squeaks and Creaks When Using a Split King Bed? 

When making a split king bed, paying attention to all the details is important. Doing so will ensure that your new bed is comfortable, durable, and free from annoying creaks and squeaks. Here are some tips on how to prevent squeaking and to creak when using a split king bed:

  • Use only high-quality materials when constructing your bed frame and mattress. Poorly made parts can cause creaking and squeaking over time. Be sure to check the manufacturer’s recommendations for which materials should be used when building a split king bed.
  • Ensure that all of your screws, bolts and other hardware are properly secured. Loose hardware can lead to bed frameshifting, resulting in a squeaking bed.
  • Tighten all nuts and bolts on a regular basis – at least once every few months – to ensure that they do not get loose, causing creaky noises when you move around in your sleep.
  • Use lubricant on moving parts, such as slats and hinges. This will help to reduce any squeaking or to creak that could occur when the bed is in use.
  • Place a mattress pad between the mattress and box spring to provide an extra layer of cushioning, which can help to prevent some creaks and squeaks that may occur due to movement.

By following the tips above, you can ensure that your split king bed is comfortable, squeak, and creak-free.

Tighten All Nuts and Bolts on a Regular Basis

How Do You Maintain Your Split King Bed Over Time? 

Maintaining your split king bed over time is important for ensuring high comfort and longevity. Regularly vacuuming the mattress and box springs will help to keep dust mites away and prolong the life of your bed. Additionally, spot-cleaning any stains on the fabric with an appropriate cleaner can help keep it looking new for years to come. 

It’s also important to keep the bed frame and foundation in good condition by regularly checking for loose bolts or screws and tightening them as necessary. Finally, flipping and rotating the mattress every few months can help even out wear and tear from regular use. With proper care and maintenance, your split king bed should remain comfortable for years to come.

In addition to the steps outlined above, it’s also important to properly care for your bedding and linens. Regularly washing sheets, pillowcases, and mattress protectors can help keep them clean and sanitary. This will also extend their lifespan, so you won’t have to replace them as often. Caring for your bedding and linens on a regular basis will ensure your split king bed is more comfortable and lasts longer.

How Long Should You Expect Your Split King Bed to Last? 

A well-maintained split king bed can last for many years. To ensure your bed’s longevity, it’s important to provide regular maintenance, such as rotating and flipping the mattress every few months. Additionally, you should also clean your sheets regularly to maintain their quality. You may also want to invest in a mattress cover or pad to protect your mattress from dirt and dust. You can expect your split king bed to last up to 10 years with proper care.

Split king beds are a great option for sleepers who want the comfort of two separate mattresses while still maintaining a traditional look in their bedroom. Making your split king bed is relatively easy with the right materials and tools. With some patience and a bit of know-how, you can create your own split king bed in just a few simple steps. With the proper maintenance and care, your split king bed will provide many years of comfortable sleep.

 Bed Will Provide Many Years of Comfortable Sleep


In conclusion, making a split king bed is not as hard as it may seem. All you need is two separate mattresses, an adjustable base or frame and some extra accessories to make the perfect split king bed for your bedroom. With these tips in mind, you can now easily transform any room into the ultimate sleeping paradise.

Be sure to take the time to measure your space and find the right bed frame, mattress, and accessories to ensure everything fits together. If you need help selecting pieces or have any questions, don’t hesitate to reach out to a professional for guidance. A split king bed is ideal for people who need personalized comfort and adjustability in their sleeping setup. I hope this article has been beneficial for learning how to make a split king bed. Make Sure the precautionary measures are followed chronologically.

Angela Ervin

Angela Ervin

Angela is the executive editor of DIY quickly. She began her career as an interior designer before applying her strategic and creative passion to lifestyle and home. She has close to 15 years of experience in creative writing and online content strategy for housekeeping, home decorations as well as other niche efforts. She loves her job and has the privilege of working with an extraordinary team. She lives with her husband, two sons, and daughter in Petersburg. When she's not busy working she spent time with her family.

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