S-420
RIGID DOCK SHELTER
W/ INTEGRATED
S-900DD DRYDOCK
®
RAIN SEAL SYSTEM
SERCO STEEL
GALVANIZED STEEL FRAMING
Installation Instructions
FORM NO: 4F-420-DD-INT-9/16
PART NUMBER: T31645
Do not install this product unless you read and
understand the Warnings and Installation
Instructions contained in this manual. Failure to
do so could result in serious injury or death.
4Front Engineered Solutions, Inc.
W183 S8253 Racine Avenue
Muskego, WI 53150
Tel: (262) 679-6200
Fax: (262) 679-6210
WARNING