This section is from the book "The Boy Mechanic Vol. 2 1000 Things for Boys to Do", by Popular Mechanics Co.. Also available from Amazon: The Boy Mechanic, Vol2: 1000 Things for Boys to Do.
Not having a landing for my small boat, I made a series of sectional platforms, rising 2 ft. above the bottom, which served the purpose well and were inexpensive. Each section is about 15 ft. long, 3 ft. wide, and 2 ft. high. The frame is made of material 2 in. thick and 4 in. wide, and on top is a floor made of boards, while the bottom consists of 2 by 4-in. cross-pieces, nailed on 6 in. apart. Stones are laid on these crosspieces to moor it down in place. The whole landing is simple to make and it lasts a long time, as the sections can be drawn out and stored during the winter. - Contributed by Henry Briggs, Lexington, Massachusetts.
Ill: The Series of Platforms Make a Good Small-Boat Landing on a Slanting Beach