The Freight That Set the Price

The rule

Divide the delivered cost of a material into two parts: what it cost to make, and what it cost to move. Then notice that moving cost scales with weight and bulk, while making cost does not.

The consequence is a sorting rule that holds across this entire catalogue:

• Heavy and cheap stays local. Common brick, ordinary sand and gravel, rough stone. The freight on a low value heavy material swamps its price almost immediately, so it is used within a short haul of where it was produced and nowhere else.
• Light and dear travels. Sheet metal, hardware, finish work. A crate covering a large area and weighing little can cross a continent without the freight mattering.
• Heavy and dear travels selectively. Dressed stone. The freight is punishing, so it is bought in small quantities for the positions where nothing else will serve.
• Nothing at all travels when the material can be made on the spot. Concrete block. The ingredients are cheap and common, and the finished heavy unit never has to move.

Four of the eight entries in this catalogue sit in that list by name. The other four obey it too.

Why this matters more than taste

A reasonable person looking at an older commercial street assumes the materials were chosen. Somebody wanted a cream front, somebody preferred stone trim, somebody liked pressed metal.

Choice was real, and it operated inside a very narrow band set by carriage. The buff brick was available because it was made in enormous quantity and shipped as a catalogue line. The stone trim was affordable in small pieces and unaffordable in large ones. The rock faced block existed as a product precisely because it eliminated the freight.

So the honest order is: carriage decided the menu, and taste ordered from it.

What changed the menu

Rail, and then better rail. A city on a working line has a different palette from a city that is not, and a city that gains a connection changes what it is built of within a few years of gaining it.

This is checkable in a way most claims about old buildings are not. Where an insurance atlas of a city was drawn more than once across a couple of decades, the sheets record what walls were made of at each date. Comparing the earlier sheets with the later ones shows the shift from frame to masonry, and the arrival of materials that could not have been there before.

What this article deliberately does not print

A distance. Not in miles, not in hours, not as a comparison between two places.

Partly because a mileage figure implies a precision this subject does not have: a freight rate is set by tariff, class and competition, not by geometry, and two places the same distance apart can face quite different rates. And partly because printed distance is the organizing device of another publication, and this one has its own.

The rule survives without the numbers. Heavy and cheap stays home.