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Murphy Bed #1: Building a Murphy Bed from scratch

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Blog entry by Jim Jakosh posted 07-10-2013 10:57 PM 8855 reads 4 times favorited 20 comments Add to Favorites Watch
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We need a Murphy bed next winter in Arizona and I did not want to buy the hardware. That takes all the fun out of designing it yourself and costs $360. So I looked at a lot of bed designs and settled on one that used HD pivots, gas springs for counterbalance and a swing out leg support rather than the fold down kind.
The parameters were a twin mattress (7×39 x 75), had to flip long ways and enough room inside for making the bed. Then I had to decide on the pivot points, the foot pivot center and the gas spring attachment points.

I started with this drawing of the swing pattern:

Then I made a mock up of the pivot section and used the other end for the swing leg development.

I cut some steel and started making the components. I made a pattern of the swing leg and bent some tubing and solid round bar to combing for each curved leg. The tubing has solid in both ends and is welded together.


After It was tried out and proven, I started on the full size parts. I did make one mistake in clearance for the gas spring. I only left a 1” space between the inside of the vertical wall and the outside of the mattress frame. It should have been 1 1/2” so I had to relocate the gas spring on a bracket in the corner.
This is the bracket in the inside corner and the shot of the pivot mounted without the wall on yet.
(You have to right mouse and hit view image to see that ball and bracket)

Most of the sizes of everything was planned. The walls are 3/4×13 x 85 1/2.
The bed board is 3/4×44 1/2×80 The Frame for the mattress is 3/4X 5 except the end which is 3/4×4 to clear the swing foot. It is designed with 1/4” clearance on the sides. 1” on the bottom and 1/2” on the top.

The handles and stops were the only things that were designed on the fly ( like I usually do things) but this had to be predetermined everywhere.

The pivot is 10 1/2” up from the floor. The travel of the gas spring needs to be at least 11 11/16- the springs are 12” travel and 45#. I had 90# springs and they seemed to be too much on my mock up so I returned them. I think the correct force for this would be around 70#. That was information that I could not find anywhere and it is not in the literature for the purchased packages and they would not tell me on the phone.
All the parts are made from 3/4 red oak plywood and edgebanded with 3/8” solid oak. The bed box is fastened together with Kreg pocket screws ( lots of them) . When it is re assembled in Az., I will put a bead of glue under all the frame sides before screwing it down. The frames also have blind dowels in them for locating before screwing them in place.

When assembling the bed to the sides, the outer frame has to be apart so the pivots can fit into the bushings and then get caps screwed on on the inside then the bottom, back and top box are screwed to the vertical sides to make the outer frame.

To assemble the gas springs, they hook over a 10mm ball on each end and the bed has to be pushed back about 3” into the frame to hook the top ends on without pressure on them. For that, the stops have to be removed before you hook them on. The stops have blind dowels and 4 screws each.

The handles were made last out of cherry and are blind doweled in location and have 6 screws holding each of them on.

Here is the finished bed assembled in the garage because my shop ceiling is too low.
The handles are spaced apart because there may be trim added to make the bed look like 2 doors with handles

The stop:

The foot and its bracket:

The gas spring at rest:

The gas spring compressed

The mounting of the top box ( the bottom is not installed yet). I have 2 removable dowels on each side and six screws on each side:

Here is the foot pulled inside when the bed is raised into the store position:

I’ll post this as a project when it is finished and installed at the High Chaparral in Arizona city

......................Cheers, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!



20 comments so far

View FirehouseWoodworking's profile

FirehouseWoodworking

635 posts in 2017 days


#1 posted 07-11-2013 12:01 AM

This looks very interesting, Jim. I will be looking forward to further installments. Well done, sir!

Cheers!

-- Dave; Lansing, Kansas

View doubleDD's profile (online now)

doubleDD

2779 posts in 787 days


#2 posted 07-11-2013 01:00 AM

Great project Jim. Always wanted one at a young age. They look cool. Will be waiting for the final results.

-- --Dave, Downers Grove, Il. When you run out of ideas, start building your dreams

View Joe Lyddon's profile

Joe Lyddon

7928 posts in 2796 days


#3 posted 07-11-2013 01:25 AM

I like it…

Cool the way the legs fold into it…

Have to study it more… later…

Thank you.

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

View Roger's profile

Roger

15261 posts in 1548 days


#4 posted 07-11-2013 01:42 AM

So, a Murphy bed is for swingin??? LOL Looks like you’ve got a good start on it.

-- Roger from KY. Work/Play/Travel Safe. Kentuk55@bellsouth.net

View sedcokid's profile

sedcokid

2686 posts in 2343 days


#5 posted 07-11-2013 02:06 AM

Great looking bed Jim, and a great lookin project too! Nice engineering job!

Thanks for sharing

-- Chuck Emery, Michigan,

View Bob Collins's profile

Bob Collins

1586 posts in 2428 days


#6 posted 07-11-2013 03:26 AM

That’s a great project Jim, shows your all round skills with wood and metal. Hope it is comfortable once it gets to AZ.

-- Bob C, Australia. I love sharing as long as it is not my tools

View MShort's profile

MShort

1729 posts in 2162 days


#7 posted 07-11-2013 03:31 AM

Wow Jim,, You are the master at everything. Cool project.

-- Mike, Missouri --- “A positive life can not happen with a negative mind.” ---

View Ken90712's profile

Ken90712

15304 posts in 1933 days


#8 posted 07-11-2013 08:26 AM

Nice work great design…

-- Ken, "Everyday above ground is a good day!"

View Jim Jakosh's profile

Jim Jakosh

12319 posts in 1850 days


#9 posted 07-11-2013 11:52 AM

Thank you all for the nice comments. This was fun to make but it took up my whole shop. Now comes the staining and finishing part . I hope the humidity drops for that part of the project…...

cheers, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View stefang's profile

stefang

13623 posts in 2078 days


#10 posted 07-11-2013 12:47 PM

Makes me tired just looking at it Jim (been working in the garden all morning). You are obviously a metal worker and a woodworker. A great combination as can be seen from this nice project!

-- Mike, an American living in Norway.

View harry1's profile

harry1

520 posts in 1029 days


#11 posted 07-11-2013 01:35 PM

Now THAT is a PROJECT! You really are amazing Jim. Should I advise you when the house next door comes back on the market, we could have a great time.

-- Harry, Western Australia

View Jim Jakosh's profile

Jim Jakosh

12319 posts in 1850 days


#12 posted 07-13-2013 02:02 PM

Thank you all for all the nice comments. If I was in Az, I could now put the bed together. It is all stained and clear lacquered. Thanks to the shadow of the motorhome, I finished the last piece( the bed board) this morning before the sun could get up high enough to blister the new finish.

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View Joe Lyddon's profile

Joe Lyddon

7928 posts in 2796 days


#13 posted 07-13-2013 05:27 PM

COOL way to handle the situation!

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

View Grumpy's profile

Grumpy

19693 posts in 2595 days


#14 posted 07-14-2013 03:31 AM

Well done Jim.

-- Grumpy - "Always look on the bright side of life"- Monty Python

View mafe's profile

mafe

9668 posts in 1833 days


#15 posted 07-17-2013 04:01 PM

Jim, you are one of.
I need a Murphy – I’ll make it – and so on.
Look really fine, I look forward to see it, when finished.
Best thoughts,
Mads

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

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