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Box Frame Bed

Semi Exact Logo
Select Your Bed Height & Support Spine Size
Headboard Brackets
Regular price
Regular price
Sale price

What you need to know

Box Frame Bed V2

Our Steel. Your Wood Work. Uniquely yours. See build plans for details.

New Features include:

  • New Lighter Design
  • Cork Floor protection
  • Adjustable center support spine (fits twin to King)
  • Either vertical or angled (25 degree) brackets

**Wood not included

Finishes from left to right top to bottom - Textured Matte Black, Buttercream, Moondust Grey, Glacier White, Metallic Silver, Lava Red, Casual Turtle Green, Midcentury Blue, Low Gloss Clear Coat, Raw(not included with Box Frame Bed)

A Bed For Your Changing Life

Life changes, as if we needed a reminder. Whether it's kids getting bigger or moving to a bigger / smaller space, your furniture needs flexibility and durability. 

Our Box Frame Bed brackets are ready for all the sizes, and all the moves. 

  • 12" provides for 6" of clearance
  • 15" provides for 9" of clearance
  • 18" provides for 12" of clearance

Do all the cutting and making yourself, or take our cut list to your local home improvement shop. Make in under two hours. It’s that easy.

Build Instructions


Build Instructions & Cut Lists

Spine build animation:  


You can build your bed with just a few simple tools, one sheet of plywood, and a few standard pieces of lumber.


Create a strong, sturdy bed frame with our solid steel brackets.

  • Cut wood to size, or purchase pre-cut (see cut list above). Sand lightly and remove dust. Apply finish, if desired, and let dry.
  • Set the four Box Frame Bed Brackets out, and begin by assembling the frame. Insert the two longer lengths (sides) into the brackets first, flush against the bracket corners. Then add the shorter head and foot pieces between the two side pieces, and secure with screws.
  • Add 2x4 rails to support the slats. Place rails on the inside of the brackets, flush with the bottom of the frame, and attach to the frame with screws.
  • attach center support spine to 2x4 rails at head and foot.
  • Lay the slats across the rails, starting with the head and foot ends, so the first and last slats overlap the rails. Space the remaining slats evenly, and secure the slats to the rails with a screw at each end.
  • Slot in the assembled headboard bracket, slide the headboard in, and hand tighten the knob.
  • Add your mattress on top of the slats, and enjoy your new bed!


Shipping & Returns

As a company that focuses on creating custom sizes and that manufactures to your specification, returns can get a little tricky. We can accept returns for Quick Ship items within 30 days of delivery. 

We do not currently accept international returns. 

For our full return policy, please go here.

Ships in: 4-7 Business Days

Beautiful Colors.

We've scoured the land and have come up with beautiful colors for your enjoyment. Introducing: Buttercream, Casual Turtle, Moondust, and Glacier White. All available now for the DIY Box Frame Bed kit.

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Precision Manufacturing.

Have you ever tried to make a wooden chair or a table? What's hard is getting the pieces to stay together under a load. You either need to have some really hard wood and strong joinery skills, or you need to beef up the lumber and use lots and lots of screws and glue to Frankenstein it all together. (See everyone’s first woodworking project :)

But what if we made the metal do the heavy lifting and you focused on the clean lines, the lumber species, the grain pattern? Instead of dropping a few hundred on new tools, what if you designed within the constraints most of us have, a small saw and a drill, or a way to get to Home Depot with a cut list?

That's how we approach our metal product designs. We make, so you can make it.

Most of us don't have time to learn how to make a castle joint from walnut that might end up as a $600 mistake. But we can take some walnut or birch plywood and make some pretty amazing beds with a little help from these Box Frame Bed metal corner legs.

What Others Are Building

The Semi Exact Difference

Your Ideas
You sketch it out. We help make it a reality with custom sizes and colors.
Our Inspiration
We focus on ready to make furniture that is easy and enjoyable to build.
Precise Manufacturing
We manufacture in the USA with precision equipment and a team that cares.
Shipped to You
We make every order to your custom specifications and ship to your door.