It's about as heavy as a Blue Whale.
It's about two-thirds as heavy as a House.
In other words, the weight of a House is 1.49 times 2,560 firkins.(149 sq. m, single-level, unfurnished)
A 149 sq. m (1,600 sq. ft), single-story, unfurnished house (without extensive masonry) of the type commonly found in America would weigh approximately 3,820 firkins, based on the weight of the included materials. In contrast, a yurt — a type of dwelling structure popular among nomadic peoples of East Asia — typically weighs less than 11.3 firkins.
It's about one-and-a-half times as heavy as The Space Shuttle.
In other words, the weight of The Space Shuttle is 0.67 times 2,560 firkins.(for Endeavour, a.k.a. OV-105, a.k.a. Orbiter Vehicle-105) (empty weight, excluding main engines)
When empty, the space shuttle Endeavour weighs 1,700 firkins. The shuttle's spacious cargo bay carried the Chandra X-ray Observatory into orbit in 1999 — a payload that weighed 480 firkins.
It's about one-fifth as heavy as Christ the Redeemer (statue).
In other words, 2,560 firkins is 0.165 times the weight of Christ the Redeemer (statue), and the weight of Christ the Redeemer (statue) is 6.06 times that amount.(a.k.a. O Cristo Redentor, a.k.a. Christo redemptor) (Rio de Janeiro, Brazil)
Christ the Redeemer weighs 15,600 firkins. The statue overlooks the city of Rio de Janeiro from atop the 709.9-meter (2,329 ft) granite peak in the Tijuca Forest National Park.
It's about nine-and-a-half times as heavy as an Anchor of a Cruise Ship.
In other words, 2,560 firkins is 9.25 times the weight of an Anchor of a Cruise Ship, and the weight of an Anchor of a Cruise Ship is 0.108 times that amount.(for QE2 forward anchor, a.k.a. RMS Queen Elizabeth 2)
Each of the forward anchors of the RMS Queen Elizabeth 2 weighs 277 firkins. The anchor of the QE2 now sits in front of the Holyrood Church in Southampton, England, United Kingdom, along a pedestrian tourist route known as "the QE2 mile."
It's about one-fifteenth as heavy as a Tree (Sierra Redwood).
In other words, the weight of a Tree (Sierra Redwood) is 13 times 2,560 firkins.(a.k.a. Giant Sequoia, a.k.a. Sierran redwood, a.k.a. Wellingtonia, a.k.a. "Big Tree", Sequoiadendron giganteum)
The weight of wood in a Giant Sequoia is 32,000 firkins. General Sherman, a specimen in Sequoia National Park in Visalia, California, is the largest tree in the world by volume, with an estimated weight of about 47,000 firkins.
It's about fourteen times as heavy as an Elephant.
In other words, 2,560 firkins is 13.91 times the weight of an Elephant, and the weight of an Elephant is 0.07189 times that amount.(for African bush elephant, Loxodonta africana) (Adult, bull)
A bull African bush elephant weighs between 184.1 firkins. Among African elephants, both males and females have tusks (female Asian elephants lack tusks) which can grow to 3 m (10 ft) and weigh up to 2.205 firkins.