Monumental Environmental

Monumental Decks and Docks – Over 100 years combined experience

in residential and commercial deck and dock building. From land to sea, we have you covered.


Monumental Decks and Docks – We specialize in using post consumer recycled plastic lumber and/or wood decking for your most challenging home and waterfront construction jobs. We offer a custom design and build service of the highest quality of craftsmanship… no job to is too big for our team of seasoned professionals. Our main offices are based in Doylestown, Pa, between New York, New York and Philadelphia, PA in. We also have offices in Manhattan, NYC. We service locally and in surrounding states and we ship our prefabricated decks and docks nationally and overseas as well. Please contact us by filling out the quote request form or email form below, or simply give us a call. 215-534-2451

Monumental Environmental is here to support the ever growing need for global environmental preservation and more healthy lifestyle products that our planet desperately needs. Our recycled plastic lumber is an incredible product for builders and buyers across many different industries. Our product is designed to last over 300 years and is good for both residential and commercial applications. Plastic lumber is used in many situations that allow the customer a material that has benefits that normal building materials, such as wood, do not have. So not only you can use a product that reduces the amount of plastic waste, but you can also GO GREEN and have a better and longer lasting material. Its great for building docks and marinas and other oceanic and water bound structures, as well as decking and even in your home or commercial building. We offer a full design and build service, as well as an installation team available depending on the project location. Please click on the quote request button below to tell us are about your project needs.

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Monumental Lumber – Introducing The Forever Dock® Made With Post Consumer Plastic Wood Materials

Finally, A Dock Worthy Of Your Boat Crafted from Plastic Lumber, your Forever Dock® plastic lumber dock will last a life time. No more splinters, unsightly warps, splits, cracks, rot, or CCA (chlorinated copper arsinate) leaching into your water. And, perhaps best of all, no more maintaining and replacing rotted or splintered wooden boards. With a lifetime limited warranty on the plastic lumber, you’ll have peace of mind and more time to enjoy boating and other waterside activities.

Classic Permanent Colors Your boat has style and color. So should your dock. After just a few short seasons, unstained or unpainted wood docks often look unsightly. Preserving the new look of wood requires frequent, costly maintenance and eventually, replacement. Your Forever Dock® plastic dock will be built in the colors of your choice to complement your home, marina, or boat. Select from a wide range of natural wood tones, earth tones or the look of freshly painted color. The colors are permanent and run throughout the lumber. Although the materials cost more then CCA lumber, installation costs are the same. However, your Forever Dock® plastic dock is a one time installation that will look as good five, ten, thirty and fifty years from now as it does today – with no further costs.

Great For Docks, Piers, Decks, Boardwalks, and Bulkheads! Around your hot tub or pool, lake side, on the bay, or ocean front, you’ll never have to worry about the effects of water or moisture. Monumental Plastic Lumber is impervious to marine borer worms, insects, water, and chemicals. It is a solid, non-porous, non-leaching, permanently colored building product that is an environmentally friendly product!

Why use Plastic Lumber for your project? More…

Easy Installation For Do-It-Yourselfers Or The Dock Builder Of Your Choice.Working with Monumental Plastic Lumber is easy and requires only standard wood working tools and fasteners. Docks can be shipped complete or in kit form with plastic lumber, Hi Strength Steel Plate-ASTM-123 Hot Dip Galvanized Hardware and Fasteners, Galvanized Cleats, and Polyethylene Shell Foam filled Floats.

Long Bridge Park

Burlington County Parks and Recreation Dept. Mt. Holly, NJ.

This project is floating across the lake at Long Bridge Park, an elevated boardwalk with a viewing platform made from 100% recycled plastic lumber.  The advantage of our modular boardwalk system is very evident on a public prevailing wage project when we deliver the 20′ modules completely assembled, ready to install.

To discuss your plastic wood and/or wood project with our engineering staff or to request a project quote complete our Quote Request.

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243 Harvey Ave.
Doylestown, PA 18901
Phone: (215)-534-2451