Dating Square Nails They explain that since nails in antique furniture often fall out, the piece may have empty nail holes left in it. If the hole is square, the furniture was possibly made before 1800. Rectangular holes may indicate that the piece was built from 1800 to the 1880s.

When were square nails used in furniture making?

Furniture predating 1790 will include “rose-head” nails identified by their irregular, rose-shaped heads. They were made individually by blacksmiths. Square-head nails were made from the late 1700s until about 1830.

How old is my square nail?

In general, any nail with molds seams or grinding marks should be considered of recent manufacture. Some genuinely old cut nails with hand forged heads may have burrs along the edges of their shanks. These burrs should not be confused with grinding marks that appear in the middle of the shanks and heads.

When were square nails last used?

Until about 1800, nails were hand-forged – tapered square shafts and hand-hammered heads. During the 1800s, cut nails have tapered rectangular shafts and rectangular heads. In the 1900s, the round wire nail with straight sides and a round head are the standard.

What kind of nails should I use for hardwood flooring?

As for wood flooring fasteners, youll use nails or staples. Staples are generally a cheaper choice of fastener, but 16-, 18-, or 20-gauge flooring nails or “cleats” are the choice of pros. They allow for wood flooring expansion and contraction, also providing great holding power.