My partner and I were lucky enough to move into a beautifully renovated 1914 Spanish Mission house in September 2017, and since then have set about turning it into a home. A few window locks, a side gate to keep the dog in, getting all the original internal doors swinging smoothly and a few new bathroom fixtures.... and we were done!
With no kids yet, we have a few spare rooms, so I decided to turn what was a formal lounge into a home office.
dressy estate agent "before shot"
After some inspiration from a local trendy cafe, it was straight onto pinterest and google and then down to bunnings with some measurements and plans in hand to pick up a few bits and pieces.
20mm Galvanised pipe
Acacia bench/panel 2200 x 600 x26
Then off to complete our gumtree purchase/pick-up and we were ready to begin:

First step was to pull apart the filling cabinet sand back flaking paint & rust then taping up the shiny bits ready for primer and paint.
sanded and taped up
first coat of primer
The galvanised pipe comes with an oily coating and barcode stickers, which had to be soaked and scrubbed off with hot soapy water and turpentine:
hot soapy soaking
more buckets
on the turps
115 pieces all up
Then it was time for a basic assembly for a test fit...
constructing the legs
shelf supports coming together
test fit - frame
test fit - desktop 
Next step was some basic asembly and to prime and paint all the pipe and fittings - 115 pieces all up! 😲
homemade mini spray-booth
primer
2nd coat of primer
more priming
priming shelf uprights
After the last coat of primer it was time for 2-3 coats of matt black spray enamel.
last coat of primer 
Once all the coats of spray enamel had dried it was onto final assembly.
THE FILLING CABINET was the easiest job with just a soak and wpe down of the polished handles and fittings in vinegar solution.
THE DESK legs and feet were adjusted for level, a few mini coach screws from underneath the table top and that was done.
BOOKSHELF was the last to be assembled ... First the uprights were grouped in 4's of the same height to aid in levelling the unit, then with only 96 holes drilled and filled with 96 specially ordered matt black nuts and bolts it was all done...AND....
The final product is below....
Lower leg & footing
Leg upright
Shelves


Only additional bit of work was to bring in an electrician who put in some down lights:
