Instructables
Picture of Layered Platform Bed
This is how to make a platform bed to go along with this Instructable's woven headboard. Building it was actually way easier than I was anticipating, and after a somewhat fretful first night (I'd never built a bed before, and was half-expecting it to collapse on me), is pretty sturdy. It's relatively inexpensive to make: the supplies cost around $120, and can be finished in a weekend.
 
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Step 1: Supplies!

2 pieces, 1/2" x 4' x 8' hardwood plywood
2 pieces, 7/16" x 4' x 8' OSB sheathing
7 pieces, 1 x 3 x 8" lumber
3 pieces, 2 x 4 x 10" lumber
3 rolls of 1" wood veneer
1 box, 2" #8 screws
Wood glue
Clamps
Sandpaper
Wood stain (optional)
Finish
1" furniture sliders

Step 2: Cuttin' Wood!

Hardwood Plywood
Cut the sheets into:
2 pieces, 15 x 81"
2 pieces, 15 x 61"
4 pieces, 15 x 20"
4 pieces, 15 x 25"

OSB Sheathing
Cut the sheets into:
2 pieces, 30 x 80"

1x3s
Trim to 5' length

2x4s
Cut to:
2 pieces, 4.5' length
2 pieces, 6' length

Step 3: Platform!

Picture of Platform!
Once you've got the OSB cut to the right size, you're pretty much done with it until it comes time to put everything together. Unless you want to make it fancy, that is.

I spray-painted the top of each piece black, to kinda make it less obvious when in use (there's about a 1/2" gap between the mattress and the frame when it's all assembled). Doesn't need to be pretty, just not looking like its cheap pressboard self.

I then took 2 pieces of leather, about 1 x 4", folded that in half, superglued it to itself, then superglued it to the top of each platform half to make a little handle to help get it up off the support beams. I also put a couple small nails through each strap to give it a little better grip.
Malkenite1 year ago
My only comment would be that there is a weakness in the center of the bed where the two platform pieces meet since the underlying supports are only 1x3s. I would suggest going back and supporting the 1x3s with perpendicular boards running the length of each 1x3 and secured 6-8 time per 1x3. This should give you more support in the middle.
jmacfarlane (author)  Malkenite1 year ago
It certainly doesn't hurt to have more support, but it's not necessary with this design, as the platform is distributing the weight to the supports evenly. If increasing the width to accommodate a king-size mattress, you should absolutely include a perpendicular support beam in the middle.