Construction Information For Beginners (written by Auratus)

Construction
Well,
if you queue up say 16 buildings for construction all at once,
it'll be sometime before any are done. Some less important
ones may even finish before certain others that were queued
sooner. The trick is to find an order that also steady construction
will other needed things are happening.
For
example, grain farms take a little while to get started, so
don't build it, the mill, water hut, and baker all at once.
Let the farm get built first. Do other things, then come back
to finish the grain industry. Don't get more than 5 or so
buildings queued up at once. If you do, pause them until the
proper time.
Build
a few small towers, but don't go gun-ho on them until you
have a solid wood and stone industry going. Lastly, if you
have very few builders and diggers get more. 15 to 20 of each
works well for me. Get more from loose hammers and shovels
on the ground... or make more hammers and shovels at the proper
time as implied below.

Anyway...
I generally go about it like this (order is priority):
Lumber
Industry: 1 saw mill, 2 choppers, 1 forester;
Stone:
2 stone collecting huts and/or 1 or 2 stone mines if food
is available for the miners. A
small or medium residence if the population starts low;
Lumber:
another set (1 saw/ 2 choppers), plus 3 foresters;
Fish:
two fishing huts if rods are available (queue fish distribution
to all mines); a storage house (for loose
tools to see what I have that might be hidden); a grain farm;
an iron ore mine; a coal mine; an iron smith; a tool smith;
a wind mill; a water hut; a bakery; another medium residence;
a weapons smith if hunters are not available; two hunters;
another grain farm;
Stone:
check supply of it and build more stone collectors if needed;
another bakery; a large residence; the list goes on.
Eventually
I'll have 5 coal mines, 2 iron mines, 3 gold mines, 4 gold
smiths, 4 iron smiths, 3 weapons smiths, 2 or 3 barracks,
and two complete sets of eye-catchers.

Plus... build a mana
economy depending on the scenario and need.
Now,
of course the priority may need to be adjusted per the scenario
or map circumstances. This build-out is what I generally go
for on most maps. I increase it when it seems needed.
Many
folks build much more! So don't hang your hat on it, but many
of the scenarios can be won with it. Also, all my maps are
designed around this build-out. It results in a fair game
that doesn't require soldier numbers up into the thousands.
I try to keep that from happening on my maps due to the slow-down
effect on most people's computers from having so many soldiers
around on either the player's side and/or the AI's side.