Simple Bunk Beds (Twin over Twin)

Step 1

Build two simple beds, but construct the beds with both footboards to the top bunk, and both headboards to the bottom bunk. Notice how the header for the bottom bunk is shown in purple? That’s because the easiest way to join these two beds is to attach the bottom bunk’s headers to the bottom of the top bunk, as shown in the above diagram. Then when you assemble the bunk beds, simply screw through the top of the header into the top of the bottom bunk headboard. Super easy! To do this, first attach the bottom bunk’s header to the legs of the bottom bunk using 3 – 4″ screws per leg. Predrill first. When you assemble the beds, make sure you countersink and predrill the header into the bottom bunk’s 1×6 trim. Also for each of the legs, screw at an angle from the top of the header into each of the bottom bunk’s legs. In this method, you can also unassemble the bunk beds and use as twin sized beds later.

Step 2

In addition to the bunk beds, I also drew up plans for the guardrails and the ladder. You can adjust the length of the guardrails and width of the ladder as you see fit. These measurements are similar to the Land of Nod Simple Bunk Bed Guard Rails and ladder.

Cutting List for 1 Guardrail

A) 3 – 1×3 @ 44 3/4″ (Rails) B) 2 – 1×3 @ 14 1/2″ (Outer Posts) C) 4 – 1×2 @ 2 1/2″ (Spacers) D) 2 – 1×3 @ 10 1/2″ (Inside Posts) This cut list and instructions is for 1 guardrail, 44 3/4″ long. You may wish to increase the length of the guardrail to fit your needs. You may also wish to sand all of your pieces prior to building the guardrail. Attach the top rail, spacer, middle rail, spacer, and bottom rail to the outer posts as shown above. Keep the top rail flush with the top of the outer posts. Use 1 1/4″ nails and glue. Nail from the inside into the inside edge of the outer posts. Keep end edges flush. Check for square (See HOW-TO section)

Step 4

Inner Post. Attach the inner post to the Guard Rail. Attach the inner post as shown above. Keep outside edges flush. Use 2″ Nails and glue.

Step 5

Step 6

Treads. Use 3″ screws (2 per tread per side) to screw the treads in place as shown above. Predrill and countersink your screws. To attach the ladder to the bunk bed, simply predrill and screw through the top of the sides into the side rails of the top bunk.

Finishing

Sand all surfaces, starting with a medium grit and finishing with fine. Wipe off the dust, fill any holes or gaps with wood filler, and sand smooth once dry. Apply primer if you're painting, then finish with your choice of paint or stain and seal with a durable clear topcoat. For outdoor projects, use exterior-rated primer, paint or stain, and sealer so the piece stands up to the weather.