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How to make a concrete POST CAP
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This project is from the House and Property Makeover series.
Introduction
When the
concrete gate posts
were first made
we didn't give too much thought as to what sort of cap would adorn the tops.
Then, while on a Sunday drive, we spotted a post with a suitable cap and took a photo: that's it to the left. The challenge was to make something similar!
This is how we made our concrete caps.
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Making the formwork
Formwork for the mold had to be made to give the desired profile (shape) to the concrete cap.
The profile (shape) was achieved by putting together an assortment of various profiled woods.
The profile of the mold was not going to be exactly the same as the cap that was being copied because the mold was subject to the profiles of
wood that could be sourced locally.
The formwork was made up in one continuous length about 2400mm (8ft) long, using a compilation of
various profiled woods.
The length was then cut into smaller segments to make the mold.
The wood used was...
Piece [a]:
140mm x 35mm (5 1/2"x 1 3/8") stock.
One of the corners were rounded (fig.4)
using a plane and sand paper.
Piece [b]:
90mm (3 1/2") wide decorative cornice trim
Piece [c]:
90mm x 45mm (3 1/2"x 1 1/2") stock with one side cut on an angle
Piece [d]:
50mm x 25mm (1"x 2") stock
Piece [e]:
90mm x 70mm (2 1/2"x 3 1/2") stock with one side cut on an angle
Assembling the formwork pieces
The pieces were then glued, temporarily nailed and clamped together (fig.1).
The nails were only used to help hold everything together until the glue dried.
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Page one: Making the formwork profile
