Give the same construction drawing to two people.
Both may be able to read it, understand the dimensions and see what is supposed to be built.
But one of them has spent years watching drawings become buildings.
They’re not necessarily seeing the same thing.
I’ve worked in construction for over 20 years, and experience changes what you notice.
A wall on a drawing is a wall.
On site, I’m thinking about what is inside it, what runs through it, what is fixed to it and how it connects with everything around it.
A service route can look straightforward on paper.
Then you get to site.
The ceiling void isn’t as deep as expected. The pipework isn’t where somebody thought it was. Or the route works perfectly until another trade needs the same space.
That’s construction.
The Drawing Can Be Right
When something doesn’t work on site, it doesn’t automatically mean the drawing is wrong.
It may be completely correct based on the information available when it was produced.
Existing buildings are particularly good at reminding you of that.
Open up a ceiling, remove some boxing or lift a floor and sometimes you find exactly what you expected.
Sometimes you don’t.
Experience doesn’t mean you magically know what’s behind every wall.
It teaches you to allow for the possibility that you don’t.
Look at Where Things Meet
This is where I find many problems start.
Not in the middle.
At the edges.
Where does this finish?
What does it meet?
Where does the water go?
Can the pipe actually get there?
What needs to happen first?
Which trade comes next?
Can somebody get back to it for maintenance?
None of those are particularly clever questions.
But ask them early enough and they can prevent some very expensive answers later.
The edges are where construction starts talking back.
The Drawing Shows the Finish. You Have to See the Build.
Something might fit on the drawing.
That doesn’t tell you how somebody is going to install it.
How will the material get in?
Where will they stand?
What are they fixing into?
Does another trade need access first?
Will something have to be taken apart later just to maintain it?
That is buildability.
And sometimes the quickest way to understand a problem isn’t another meeting around a drawing.
Go and look at the building.
Site Knowledge Needs to Come Back
This shouldn’t become designers versus site.
Good projects need both.
The drawing carries the design intent.
Site gives information back.
Something isn’t where expected.
A detail is difficult to install.
The same problem keeps appearing.
A solution works on the first property but clearly shouldn’t be repeated another 50 times.
That information needs to travel back quickly.
Because repeating something doesn’t make it right.
It just makes it more expensive to change.
What Experience Really Adds
Construction drawings give everyone a common language.
They turn an idea into something that can be measured, priced and built.
But eventually every drawing has to leave the screen.
Someone has to measure it, cut it, fix it, connect it and finish it.
That’s where years on site change what you see.
Reading a construction drawing tells you what you’re looking at.
Experience makes you wonder what you’re not looking at.
Marlon Amele