There is something special about sleeping in an authentic antique iron bed.
Unlike a newly manufactured reproduction, an original Victorian iron bed has history. It was made by craftsmen more than a century ago, has lived a life of its own, and carries the design details, materials, and character of a bygone era. For those who appreciate genuine antiques, there is simply no substitute for the real thing.
But there is one challenge that comes with owning an authentic antique iron bed: size.
Most antique iron beds from the Victorian era were made for double-size mattresses, which were among the largest commonly available bed sizes at the time. Today, however, king-size mattresses are one of the most popular choices for homeowners who want additional sleeping space and comfort.
That leaves antique lovers with a difficult choice: settle for a smaller mattress, purchase a newly made reproduction, or find a way to convert an authentic antique iron bed to king size.
At Cathouse Beds, we pioneered our approach to converting antique iron beds to king size so that our customers can enjoy the best of both worlds: the authenticity and character of an original antique iron bed, together with the comfort and practicality of a modern king-size mattress.
Why Were Victorian Iron Beds So Much Smaller?
To understand why antique iron beds require conversion, it helps to look at how mattresses and beds were made in the 1800s.
During the Victorian era, mattress and bed dimensions were considerably different from the standardized sizes we are accustomed to today. Double-size beds represented the larger end of the market, and many of the beautiful antique iron beds we find today were designed specifically around those dimensions.
King-size mattresses simply weren’t part of the furniture landscape in the way they are today.
So when you find an extraordinary Victorian iron bed with elaborate castings, beautiful curves, unusual finials, or intricate decorative details, it was never intended to accommodate a modern king-size mattress.
That doesn’t mean the bed has to remain a double forever.
It means that, with the right approach, the bed can be carefully adapted to accommodate the way we live today.
Why Convert an Antique Instead of Buying a Reproduction?
There are many beautifully made reproduction iron beds available today. Some are excellent examples of craftsmanship and can be purchased in modern mattress sizes, including king.
But a reproduction is still a reproduction.
For the collector and antique enthusiast, there is a tremendous difference between owning an iron bed manufactured recently in the style of the Victorian period and owning an actual bed that was made and used during that period.
An authentic antique has the workmanship, materials, imperfections, wear, and history that only come with age.
That’s why our customers come to Cathouse Beds.
They aren’t necessarily looking for something that looks Victorian.
They want the real thing.
Our goal with a king conversion is therefore not to make an antique bed look different. It is to make the necessary changes while allowing the original bed to remain unmistakably itself.
Our Philosophy: Preserve the Original Design

This is perhaps the most important part of what we do.
We never re-invent the original design of an antique iron bed.
When we convert an antique from double to king size, we begin with the bed itself. Its original proportions, decorative elements, castings, scrollwork, rails, posts, finials, and overall character guide the conversion.
The additional width has to be introduced in a way that feels natural to the original design.
We like to think of it this way: if king-size beds had been offered when these beautiful Victorian beds were originally manufactured, we would like to believe that the method we use today is very close to what the original manufacturer might have done.
In other words, we aren’t trying to “modernize” the antique.
We’re simply giving it the size it might have been offered in had the mattress dimensions of today existed in the 1800s.
Adding What Is Necessary — And Nothing More
Converting a double-size antique iron bed to king requires additional width. Depending upon the design of the particular bed, this can sometimes involve adding structural components or additional decorative castings.
This is where experience and a respect for the original piece become especially important.
If additional castings are required, we select or create additions that are appropriate to the original bed — matching the style, scale, and character of the existing components as closely as possible.
The goal isn’t to draw attention to what has been added.
The goal is for the completed bed to look as though it was always intended to be that way.
That requires restraint.
It would be relatively easy to add decorative elements simply because they look attractive. But that isn’t our philosophy. Every addition has to make sense in relation to the original design.
We don’t want the conversion to become the focal point.
We want the antique to remain the focal point.
Every Antique Bed Is Different

One of the things that makes working with antique iron beds so fascinating is that no two beds are exactly alike.
There are countless variations in Victorian iron bed designs. Some are relatively simple and understated, while others feature elaborate cast-iron ornamentation, curved frames, unusual posts, decorative side rails, intricate headboards, and footboards filled with beautiful details.
Because of this, there isn’t one universal method for converting every antique iron bed to king size.
Each bed has to be considered individually.
The original construction, design, proportions, and decorative elements all need to be taken into account before determining how the additional width can be incorporated.
This is why experience matters.
A successful conversion isn’t simply about making the measurements work. It’s about understanding the design of the antique and knowing where changes can be made without compromising its character.
Respecting the Integrity of the Antique
An antique iron bed has already survived more than a century of history.
Our responsibility is to make sure that the work we do respects that history.
Throughout the conversion process, we take great care to retain as much of the original antique as possible. We don’t want to erase the evidence of its age or compromise the qualities that make it desirable in the first place.
The bed should still look and feel like the antique it has always been.
The difference is that it can now accommodate a modern king-size mattress.
This philosophy is especially important to collectors and customers who have spent considerable time searching for the right antique bed. They aren’t simply buying furniture. They are acquiring a piece of history.
A conversion should enhance the usefulness of that history — not diminish it.
From Victorian Double to Modern King
The transformation can be remarkable.
A beautiful antique iron bed that was originally built for a double mattress can be given a new life as a king-size bed without losing the qualities that made someone fall in love with it in the first place.
And that’s really what a good conversion is about.
It isn’t about changing an antique into something new.
It’s about allowing an authentic antique to continue its story.
The Victorian family who originally owned the bed could never have imagined a modern king-size mattress. Today, however, that same bed can become the centerpiece of a master bedroom, guest room, or historic home while providing the generous sleeping space that modern families expect.
See the Difference for Yourself
One of the best ways to understand our approach to antique iron bed conversions is to see the work.
We have photographs showing these beds before and after conversion, allowing you to see how the additional width has been incorporated while preserving the original design.
Look closely at the finished beds and you’ll see that the objective isn’t to create something that looks newly manufactured.
It’s to preserve what is already there.
The original character remains. The proportions remain faithful to the design. Decorative elements remain consistent with the bed’s original style. And where additional castings or components are necessary, they are chosen with the original bed in mind.
The result is an authentic antique iron bed that works beautifully with a modern king-size mattress.
Giving Antique Iron Beds a Future
At Cathouse Beds, we believe that the best antique furniture doesn’t belong behind a rope in a museum.
It belongs in a home.
It should be used, enjoyed, admired, and passed down to the next generation.
Converting an antique iron bed to king size allows that to happen.
Rather than replacing a genuine Victorian bed with a reproduction simply because a larger mattress is desired, our king conversion process makes it possible to keep the original antique and adapt it thoughtfully for modern living.
The history stays.
The craftsmanship stays.
The character stays.
Only the size changes — and only as much as necessary.
For those who appreciate the beauty and authenticity of genuine antique iron beds, that’s an important distinction.
At Cathouse Beds, our goal is simple: preserve the antique, respect the original design, and make it possible to enjoy a piece of Victorian history in a modern king-size bedroom.
After all, if they had offered king-size beds in the Victorian era, we’d like to think they might have built them much the same way we do today.
If you’d like to see more of ourpast”Before& After” king conversions….please circle back around to our website. Here is a link to visit our conversions:







