I need a shelf to hold 3 CRT monitors above my existing desk. It needs to
extend about 36" from a normal house wall and hold the weight of the
monitors. Is that enough to go on? The monitors are 2 19" and 1 21 inch. I
guess they weigh about 40 lbs each. It would be a pain to access below or
behind the current desk.
I appreciate your help as always,
Agreed. However, the CO$T of such a change-out would be very high.
If they are in good, working order, replacing them simply to achieve weight
savings would be extravagant and possibly wasteful.
If they are heavy CRTs, a good design is particularly important from a safety
standpoint. Good luck!
I would guess you are doing color critical graphic work (photographs?)
If not the suggestion to move to LCD's would be good.
If you want CRT's (some of the newer LCDs really do have great color
capabilities) then I suggest looking at some of the larger TV supply sources
and find a wall mount for TV's
Another possibility is to build small tables to hold the monitors on the
first, look into a SVGA switch so you can switch between ONE monitor.
If you must have three monitors (Why heavy CRT's?) then you'll need
some badass carriage bolts and some heavy duty supports.
Sounds to me like you need to rething your setup... I have multiple
computers at home and use a single monitor, keyboard and mouse via a
KVM switch. maybe that would be helpful.
Heat will also be an issue with that many crt's next to each other if
they're on simultaneously.
I think your missing the fact that a lot of systems these days have
multiple monitors either for more "desktop space", a panoramic gaming
view and different workspace and toolbar areas for CAD, graphics or
video. A KVM switch certainly makes sense if it's just for intermittent
management of multiple computers.
I did a very similar setup for a non linear video editing workstation.
It's been holding three 21" CRTs for at least 8 years not without issue.
What I did:
Get four of the heavy duty double slotted shelf standards and attach
them to the wall solidly. I attached them to a wall which was composed
of a double layer of 5/8" type X sheetrock with 16 1/4" toggle bolts.
Take four of the 12" long (longest I could find) shelf brackets and cut
four pieces of oak 1x2 about 24" long. Attach these 1x2s on top of the
shelf brackets (allow clearance for them to connect to the rails)
through the holes of the bracket using long machine screws and "T" nuts.
Attach these brackets to the rails on the wall and place two standard
12" deep shelf boards across them. At the front of the shelf about an
inch back drill a 3/16 hole through both the shelf and the oak 1x2.
Enlarge the hole in the 1x2 to 1/4" and install a 3/16 "T" nut from the
bottom. Get four 3/16 turnbuckles. Remove the right hand threaded eye
bolts from the turnbuckles and install with washers through the shelf
and 1x2 into the "T" nuts. Trim off excess length.
Remove the left hand threaded eye bolt from the turnbuckle and pry the
eyes open just enough to fit them through the eye bolts in the shelves
and squeeze closed again.
Get four of the smaller 8" shelf brackets, four lengths of 3/16 all
thread (~36" ea), four of the 3/16 coupling nuts for the all thread and
eight 3/16 hex nuts. On one end of each piece of all thread install a
hex nut followed by a coupling nut and tighten together to lock in place
at the end of the all thread.
Feed the all thread through the back hole of the 8" shelf brackets.
Position the 8" shelf brackets on the rails above the big shelf, high
enough up to clear the monitors you intend to put on them. Swing the all
thread to the front and align with the turnbuckles. Trim off any excess
length on the all thread and then thread into the turnbuckles. Adjust
the turnbuckles until they lift up slightly on the front of the lower
Install regular 8" shelves on the upper brackets and install more above
on the rails if desired. Place the monitors on the lower shelf.
This "suspension bridge" shelf will support your three monitors nicely
as well as monitor speakers at the ends in the case of a video
workstation. The shelves above will hold tapes, CDs, DVDs, manuals, etc.
It's also a lot less complicated to build than to describe. Painting the
hardware to match the shelves works nicely too.
Remember, the main force is not down, but OUT (from the wall). The weight
of the load puts rotational torque on the shelf. The shelf will try to move
OUTWARD not down. Assuming the anchors you choose won't bend, if you attach
the shelf such that it cannot be pulled outward or rotate on its connection,
the shelf will prevail.
Visualize a failed shelf; the disconnect damage is not some anchor sliceing
down the wall like a ripped sheet. The anchor mechanism pulled out of the
studs. I made the shelves of oak, with mitered decor. edge, and 3
shaped brackets under each shelf. I screwed metal mending plates onto
the back of each bracket so that they were fastened to the bracket and
the shelf and had one hole at top to use for bolting to the studs.
Brackets were spaced to fit the spacing of the studs. Used lag bolts to
fasten to the studs, and they didn't show with books on the shelves.
36" depth is a whole nother story - you would need some legs. How about
replacing the desktop or just laying a new counter on top of it?
I'm going to try to post a link to a drawing, if I can. I really appreciate
the help. The problem of heat hadn't occurred me. It should have because it
is already pretty hot in this small room and next summer it will be worse. I
was thinking about bolting a 1x8 into the studs and putting a heavy duty
hinge between the shelf and the 1x8 and putting legs on the shelf, maybe
with a support going at a 45 degree angle from the leg to the shelf for
support. I bet that sounds wrong but maybe after you see the drawing. Maybe
I can use the monitors just when needed to save on heat. The flat screens
have got to be cooler, no? They sure seem so. One of the suggestions, I will
need to draw out too because it is a little complicated for my beginning
skills. If I don't get back it's because I decided to forget about it
because of the heat issue, and thanks again for your input.
you have three monitors from a dual video card?
That's interesting, you may be able to consider remote control software
like VNC (freeware) or a KVM switch in order to save yourself a third
of the weight and heat.
Projectors are cheap nowadays.
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