27 The successful fishermen of that day were already in

The successful fishermen of that day were already in and had butchered their marlin out and carried them laid full length across two planks, with two men staggering at the end of each plank, to the fish house where they waited for the ice truck to carry them to the market in Havana.

その日収穫のあった漁師たちはとっくに戻っていて、カジキの処理も済ませていた。彼らは、二枚の板いっぱいにカジキの身を並べ、二人で板の両端を持ってよろめきながら倉庫へと運んだ。カジキをハバナの市場に運ぶ冷蔵トラックが来るのを、そこで待つのだ。

難しい文章である。

laid full length across two planks は、難しい。
二つの板をかけて「その板いっぱいに」　という意味