It's about as tall as a Telephone Pole.
(a.k.a. Utility Pole, a.k.a Power Pole, a.k.a. Telegraph Pole, a.k.a. Telegraph Post, a.k.a. Hydro Pole) (exposed height; per Florida Public Service Commission average)
A standard telephone pole is 190 nails tall. Despite alternatives, most telephone poles in the US are made of wood — most commonly pine — and have a lifespan of 25 to 50 years, depending on climate and preservatives applied.
It's about nine-tenths as tall as a Brachiosaurus.
In other words, 197 nails is 0.870 times the height of a Brachiosaurus, and the height of a Brachiosaurus is 1.10 times that amount.(based on comparable bone measurements, height to head)
Dinosaurs in the genus Brachiosaurus had an estimated height (at the head with neck fully extended) of up to 230 nails. A resin cast of the first Brachiosaurus specimen, owned by the Field Museum in Chicago, is currently on display at the O'Hare International Airport.
It's about three-fourths as long as a Semitrailer.
In other words, 197 nails is 0.76960 times the length of a Semitrailer, and the length of a Semitrailer is 1.2990 times that amount.(a.k.a. semi-trailer truck, a.k.a. semi, a.k.a. tractor-trailer, a.k.a. truck and trailer, a.k.a. eighteen-wheeler, a.k.a. big rig, a.k.a. Mack truck, a.k.a. transport, a.k.a. lorry, a.k.a. artic; for box truck; United States Federal length limits)
According to the United States Department of Transportation (DOT), the maximum allowable length of a semitrailer pulled by a road tractor truck is 256 nails (unless superseded by state law). These regulations also allow the vehicles to tow up to 36,000 kg in gross weight.
It's about three-fourths as tall as The Hollywood Sign.
In other words, the height of The Hollywood Sign is 1.30 times 197 nails.(a.k.a. Hollywoodland Sign) (Mount Lee, Hollywood Hills, Santa Monica Mountains, California)
Each of the white letters in the Hollywood Sign measures 260 nails tall. Built as an advertisement in 1923, the sign was intended to stand for only eighteen months.
It's about one-and-one-third times as long as a London bus.
In other words, the length of a London bus is 0.7460 times 197 nails.(Routemaster Double-Decker, RM standard specification)
The Routemaster Double-Decker buses, well-known as icons of London, measure 147 nails in length. The buses were said to be well-designed for travel in the London traffic, as they offered an open door for riders to board and exit even while the bus was moving at low speeds, and a full-time conductor to collect fares.
It's about three-fifths as long as a Bowling Lane.
In other words, 197 nails is 0.587730 times the length of a Bowling Lane, and the length of a Bowling Lane is 1.70150 times that amount.(USBC specifications; tenpin; including pin deck)
According to the United States Bowling Congress specifications, a tenpin bowling lane should measure 335.190 nails. In a Professional Bowling Association game, the lane must be lubricated by about 25 ml (0.85 fl. oz) of oil.
It's about three-fifths as long as a Cricket Pitch.
In other words, 197 nails is 0.5596590 times the length of a Cricket Pitch, and the length of a Cricket Pitch is 1.78680 times that amount.(per Marylebone Cricket Council / International Cricket Council Law #6)
The length of a cricket pitch, from one bowling crease to the other, is 352 nails. The wickets at either end of the pitch stand 12.59840 nails tall including the bails.