A curious trend I have noticed in universities and research libraries is to provide larger desks for those with a computer than those without. With a computer the desks seem to be about 1200 x 800 mm per person, without a computer 900 x 700 mm. The computer keyboard, processor and screen takes up space and so it would seem to make sense to provide a larger desk, but even so, the computer desks are much larger. This may just be because they are newer. After looking around it would seem reasonable that if you have just the computer and keyboard on the desk (no processor) box, then a 900 x 600 mm desk is adequate.
If there are two rows of desks pushed back to back, with the seating staggered (that is the people on one side do not directly face those opposite) then it should be possible to reduce the depth of the desk to 450 mm. For privacy and noise reduction, the usual library carrels could be used, but the monitors themselves will form a a partition down the centre of the desk.
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