[this paragraph series ladder color options subject height is refers to the total height of the ladder all straightened, type A (also called ladder) height is straight ladder in half height calculation (for example: ultra thick section straight ladder 4.7 meters =2.3+2.3 miter, is refers to the straight ladder height is 4.7 meters, vertical herringbone ladder height is 2.3 meters). In addition: iron use refers to the ladder as bridge ladder (scaffolding) two iron plates when the table is laid on the top of the! The other is not used, can according to customer needs to buy! ] have questions please contact dispensers Tel: 15293796542 e-mail