In the early years of the 20^th Century, cement was all the rage. And the idea of making your own cinder blocks (for fun and profit) apparently also became quite popular. The back pages of the 1905 issues of American Carpenter and Builder (a building magazine from that era) were filled with advertisements for block-making machines and cement-stirring machines.

Sears offered the Wizard Block Making machine which retailed for $57.50 (a bargain at twice the price!). And Sears suggested that a man could save a lot of money on building a new home if he made his own blocks. Now if a man devoted himself to making nothing but blocks and if a man had someone else preparing the cement for pouring, he could make about one every two minutes. To do this, the poured cement was loaded into a form, pressed down in this contraption and then removed. The form was not removed until the concrete had hardened a bit. That meant if you were serious about making blocks, you had to have several forms on hand.

The ad below suggests that the block could be removed immediately from the form. I’d love to know if that was accurate. Having never made a block in the Sears Roebuck Wizard Block Making Machine, I can’t say for sure.

Sears estimated that 1,300 blocks were needed for the basement of The Chelsea (one of their kit homes). The Chelsea was a modest foursquare on a short cellar. It’d be safe to assume that a Chelsea made of nothing but block would require more than 4,000 blocks. If you devoted yourself to the creation of those blocks and really hustled, you’d need about 17 eight-hour days to do nothing but work like a dog making blocks and setting forms in the sun and breaking open the forms and placing the forms back into the machine. And that’s if he had someone else preparing the cement. That’s a lot of work.

When I give talks on Sears Homes, I get a surprising number of questions about the Wizard Block Making Machine. Apparently this labor-intensive, cinder-block maker was quite a popular item for Sears.

Close-up of The Wizard

The Wizard Block Making Machine from an early 1900s Sears specialty catalogue

In what looks like a backwards evolution graphic, a man demonstrates how to use the "easy-to-use" Wizard block-making machine.

So reads a large advertisement in the 1912 issue of American Carpenter and Builder. I own a number of these architectural magazines from the early 1900s and the majority of advertisers offered products with a connection to the new and modern building miracle:  Concrete.

In 1867, Parisian gardener Joseph Monier was awarded a patent for reinforced concrete, which is concrete with embedded metal.

By the early 1900s, concrete became a hot item in the building trade. The rear pages of American Carpenter and Builder were filled with concrete products and concrete dry mixes and concrete mixers and concrete block makers. Concrete was big money. One of its biggest selling points was the fact that concrete was fireproof. In a time when fire was one of the great threats facing city residents and farm owners alike, creating a fireproof building was a big selling point.

As someone who loves to read old architectural magazines, I thought I’d seen it all - until I found this ad for concrete pine boxes. The ad promises, “Wooden boxes are rapidly becoming a thing of the past.”

Uh, it’s been almost 100 years since that statement was made and it hasn’t proven true.  “Wooden boxes” still abound.

I’d love to know how many contractors made money selling concrete caskets during the slow seasons of their building business.

Concrete pine boxes offer big profits (from 1912 American Carpenter and Builder Magazine)

Okay, so it’s from a February 1911 Ladies Home Journal, but still, it sounds so intriguing.

At first glance, I assumed that this fireproof house was 90% asbestos content, but upon reading the full article, I saw that I was wrong. It’s made of poured concrete and has lots of hollow tile, plaster (applied over metal lath), ceramic tile and block. Even the floors are poured concrete. Ater all that concrete is dried, the wooden forms are removed.

Very interesting idea for a house, and it’s nice-looking, too but good luck hanging up any pictures on the walls. Small price to pay for a fireproof house - I suppose.

A picture of the Fireproof House (from 1911 LHJ)