Double bed frame planI also have a plan of this bed with 3d drawings
Bill of materialsThe bill of materials below assumes all the lumber is of good quality. You should buy extra wood to be able to leave out pieces with defects in them, as construction lumber is often full of ugly defects. Generally, its best to buy wider pieces of lumber and rip them into narrower pieces. You end up with higher quality lumber that way, as smaller pieces of lumber are cut from the smallest trees and are prone to warpage. It may be better to buy six 2x8x8' instead of the parts marked with an asterisk, and cut t he appropriate sized parts from those.
Cross sectionNote how the slats rest on the ledge on the inside of the side rails.
A rabbet in the end of the slats ensures that not too much height is used up by the slats.
The holes for the dowels are best drilled by clamping the horizontal and the post together, and drilling the hole through both parts at once from the outside, as shown below.
FootboardThe foot board is nearly the same as the head board, just shorter. If you who prefer to stick their feet off the end of the bed, leave out the top horizontal part, and make the posts just 18" long.
Bed railThe bed rail has a series of blocks on the ledge to support the slats. The purpose of these blocks is to keep he slats from sliding around.
Its best to glue and screw the 1.5"x1.5" support rail for the slats onto the main part of the rail, to make sure that it's attached solidly.
SlatsCut the slats from 2x4 lumber. Make 12 slats, each 53.75" long.
Final assemblyBed frames are designed to be taken apart for moving. Unscrewing the side rails to move this bed.
The slats are placed between the bed rails, and are only held in place by gravity. The
blocks on the bed rails prevent them from sliding around.
Also read my Building a bed page on building a twin size version of this bed plan for more guidance.