If you have kids that share a small bedroom, than building a bunk bed might be a good solution. In limited space, instead of having two beds that take up most of the space in a room, bunk bed gives more room for kids to play around. Few years back I built this bed for less than $400 of material.
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Tools for this project
• 4x4x8' (x4)
• 2x4x8' (x10)
• 2x3x8' (x5)
• 1x4x8' (x24)
• 1x6x8' (x1)
• 1x4x6' (x12)
• 4'x8' Plywood 1/4" thick (x1)
• 4'x5' Plywood 1/4" thick (x1)
• 4'x5' Plywood 3/4" thick (x1)
• Finish Nails
• 2 1/2" Pocket Hole Screws
• 1 1/4" Pocket hole screws
• 2 1/2" Wood Screws
• 1 5/8" Wood Screws
• Wood Glue
Note: Lumber dimensions are listed as nominal size. See lumber sizes for actual dimensions vs nominal.
Disclosure: Some of the links on this page as well as links in “tools for this project” and “material list” sections are affiliate links.
Main Post Supports
First cut 4 main post supports that would be placed at each corner of the bed using 4x4. Using a miter saw notch 1 1/2" deep sections in two areas of each post per provided dimensions. The notch will be used to insert 2x4
Cutting Chamfer Edges
Then take 1x4 and cut it to 16" long (x20). Using a table saw chamfer edges to 45°
Attaching Chamfered Boards
Now attached 1x4 (33" long) to 2x3 (33" long) using 1 1/4" screws. Make sure that 1x4 is 3/4" in from the backside of 2x3. This will allow you to place chamfered 16 long pieces flushed to the back of 2x3. Use nail gunto attached chamfered pieces to 1x4. The last 16" board will not fit so you will need to trim it.
Building Shelves for Right side
Now we will work on the shelf. Cut 1x4 to provided dimensions and assemble it using nail gun with finish nails. Make sure that corners are 90°.
Back Cover for Shelves
Then cut 1/4" plywood to 34 1/2" x 33". Place it on top of the shelf and attach it using nail gun.
Finishing Right Side of Bunk Bed
Now attached the rail to 4x4 support post so that 2x4 is just below the upper notch. Then attached the shelf below the 2x4 using nail gun.
Now we will work on the front rail. Take 2x3 and cut it to 72" (x2). Using table saw, rip it so that its 2" wide. Also take 1x4 and cut it to 72" (x2). Now similar to step 3 cut chamfered boards to 16" (x21) and finish assembling it just like step 4. Do not attach it to 4x4 post yet, we will do that later.
Building Widow Frame
This step is optional if you want to build a window. For this step, take 2x3 and cut it to 28" and 39 1/2" (x2). Then take 1x4 and cut it to 28" (x2). Drill pocket holes as show on a picture and assemble together. Make sure that both 1x4s are attached 3/4" lower from the back side of 2x3.
Chamfered Boards Around Window
Now take 1x4 and cut them to provided dimensions and chamfer each board just like step 3. Then place these boards into the frame you built from step 11 and attach it using nail gun.
For this step we will cut 3/4" plywood and place it on top. Then cut 1/4" plywood and cover the sides. Use nail gun to attach plywood. The stair area that are against the bed do not need to be covered with plywood. If you prefer, the plywood could be covered with carpet.
Install Mattress Supports
Now take 1x4 that is 6 foot long and cut them in half so that they are 36" long. You will need 24 pieces that are 36" long. Take 12 of these boards and spread them out on 2x4 on the lower bed, then 12 boards on the upper bed. They will need to be 2 3/4" apart. Cut 2" x 1 1/2" blocks and place them between the 1x4 boards. Use nail gun to secure them to 2x4. This will prevent boards from sliding.
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