frequently asked questions

Fencing, Storage Sheds, Patio Covers, Decks

When DuraMax first entered the exterior vinyl building products market, we saw a huge deficiency in how consumers were being serviced in the western US. The only exterior vinyl building products available to the residents of the western US had to be shipped in from the mid-west and east-coast where all other building product extruders are located. These extruders had to ship their products great distances in order to serve the market in the west. Their fence dealers and fabricators faced shipping and inventory problems and, therefore, higher operating costs and longer lead times, which were transferred to consumers.
In addition to unnecessary shipping cost being charged to consumers, extensive research showed that the vinyl formulation used for the mid-west and the east coast was not the most effective formulation for the southwestern states. Here’s why: there are three standard test climates representing the extremes encountered in the continental United States:
1. Hot and dry, average 300 days of sun per year.
2. Hot and moist with exposure to salty air.
3. Temperature extremes, from fairly hot and moist in summer to below zero and moist in winter.
The Southwestern states receive significantly more sunlight than any other region. UV rays from the sun are the main cause of yellowing in vinyl.

DuraMax Is The Most Durable Vinyl Fence Money Can Buy

DuraMax was designed for and is manufactured in the Southwest. We’ve been manufacturing vinyl products in the Southwest since 1983 and have perfected our vinyl products to meet the demanding weather conditions of the region. Here’s how: Proprietary DuraResin Material Our proprietary DuraResin vinyl is designed for the hot Southwestern sun and has been used in many of our outdoor products since 1987. DuraResin contains over 12 parts per hundred titanium dioxide (an effective sunscreen) and highly perfected UV inhibitors and modifiers, so you can be sure you’re getting the highest quality vinyl designed to give you a permanent and durable solution for all your fencing needs. “Route and Lock” Construction All DuraMax vinyl fencing is built by routing and interlocking the different parts together. Routed and interlocked members will never pull apart or fail. When you buy DuraMax, you truly get a maintenance-free fence. No Nails, Visible Screws or Glues Screws and nails corrode and rip out. Glues that are used to hold fencing members together dry and crack after years in the sun. We never use these non-durable materials. With our “Route and Lock” construction you can be sure your beautiful investment will last forever. We Don’t Mix Regrind In Our Materials We only use the highest quality virgin vinyl materials in our residential fencing…never any regrinds or runoffs from other vinyl products. That’s how we guarantee a durable fence that won’t warp, bow, crack or deteriorate for the life of your fence. Thick Walls For Strength And Durability The walls of all DuraMax vinyl fence materials are thick for strength and durability. Thicker walled materials eliminate problems like cracking, sagging and warping over the life of the product and guarantee a truly maintenance-free fence.
Additionally, our vinyl is co-extruded to maximize strength and durability. As you will see from the diagram below, our vinyl is actually comprised of 2 “layers”. The top surface layer (cap stock) is specially formulated with the best UV resistance properties to resist yellowing. And the inner layer (substrate) is built for high rigidity, which means that our vinyl is the strongest available and will not warp.
In case you are wondering, “Is co-extrusion really necessary? Why can’t there just be one layer?” One single layer cannot have both the UV Protection needed against the intense Southwestern sun, along with maximum strength and rigidity. The chemical composition to achieve those 2 results are different.

Well, here’s a definition, courtesy of Wikipedia: TiO2 Defined: Wikipedia Titanium dioxide, also known as titanium(IV) oxide or titania, is the naturally occurring oxide of titanium, chemical formula TiO2. When used as a pigment, it is called titanium white, Pigment White 6, or CI 77891. It is noteworthy for its wide range of applications, from paint to sunscreen to food coloring.


As a pigment of high refringence, titanium dioxide is the most widely used white pigment because of its brightness and very high refractive index (n=2.4), in which it is surpassed only by a few other materials… This pigment is used extensively in plastics and other applications for its UV resistant properties where it acts as a UV reflector. … In almost every sunscreen with a physical blocker, titanium dioxide is found both because of its refractive index and its resistance to discoloration under ultraviolet light. This advantage enhances its stability and ability to protect the skin from ultraviolet light. Sunscreens designed for infants or people with sensitive skin are often based on titanium dioxide and/or zinc oxide, as these mineral UV blockers are less likely to cause skin irritation than chemical UV absorber ingredients, such as avobenzone.

Yes. Depending on circumstances and local building codes, high vinyl fencing may require reinforcement of the posts, but this is equally true for other materials.

No problem. Your local dealer/contractor knows how to use our standard vinyl components to fabricate gates.

Our standard components come in a large variety of shapes and sizes. This provides a tremendous selection of “building blocks” and permits virtually unlimited customization of your fencing. Almost any style you’ve seen in wood, metal or vinyl fencing—as well as many you’ve never seen—can be created with DuraMax.

Installation requirements are no different than for wood fence posts. If you live in an area where concrete is normally used, you would use it for vinyl as well. If concrete is not usually used for wood posts in your area, you would not use it for vinyl posts either.

Lawn equipment such as power mowers, trimmers and weed eaters can damage any fence posts—vinyl included. But since vinyl fencing consists of standardized components that are easily replaced, the damage is less of a problem than with alternative fencing materials that are variable and need to be carefully matched, or that need to be sanded, primed and painted. While all fencing is vulnerable to graffiti, vinyl is very easy to clean. In most cases, a little paint thinner does the job. In extreme cases, a pressure washer or some sandpaper may be required.

A once-a-year washing will keep your fencing looking new indefinitely. The fact that this is the ONLY maintenance needed is one of the main reasons why vinyl has been gaining in popularity. Other fencing materials require an ongoing commitment to a costly and time-consuming program of maintenance.

Under certain conditions, mold and mildew can settle on the surface of vinyl fencing. But since it cannot penetrate the surface, it is easily wiped off with detergent and water.

Wind loads vary with location and with the placement and installation of the vertical posts and horizontal rails. When the fencing is installed according to specifications, wind is never a problem. As for weathering, vinyl does not rust, and it holds up better than any alternative fencing material on the market. All components are designed to allow for normal expansion and contraction with varying temperature, and the fencing will withstand even the most extreme weather conditions. It will not deform in the hottest weather, nor will it crack or break on the coldest night. CAUTION: If you live in the Southwest, where the sun tends to be stronger than in other parts of the country, weathering due to ultraviolet radiation can be a problem—UNLESS it’s DuraMax fencing. DuraMax fencing is the only vinyl fencing manufactured in the Southwest. Its vinyl is extruded from a specially formulated DuraResin 3 material that contains 12 parts per hundred titanium dioxide, which acts as an effective sunscreen. DuraResin 3 also contains special UV inhibitors and modifiers designed to withstand strong UV sun rays. Unlike DuraMax, other brands of fencing are manufactured in regions where the sun is less intense, and they are extruded from resins that are NOT formulated to withstand intense UV.

DuraMax fencing comes with a Lifetime Transferable Non-Prorated Limited Warranty. “Lifetime” and “Non-Prorated” are clues that when we say it lasts, we mean it. And “Transferable” is a clue that when we say it adds value to your property, we back that up as well.

Your vinyl fencing is designed to last a lifetime. But lasting long is not the whole story. Another question is how long it will continue to look good. On this issue, you are apt to envy your own fencing…because the fencing will stay young-looking indefinitely.

No. The initial investment for vinyl is much less than for custom ornamental iron fencing. Compared with decent quality wood and metal fencing, the initial cost of vinyl may seem to be a bit more, but when you consider that vinyl needs no sanding, priming or painting, the installed costs are about the same. However, the most meaningful comparison for most homeowners is the total cost over the lifetime of the product or over the years that the property is owned. In the long run, vinyl is by far the most economical type of fencing you can buy. Vinyl will never fade, rot, rust, peel or look old. It resists cracking and it never needs painting, so there’s no paint to chip off. That means it never needs repainting, either or replacing due to aging or weathering.

“Vinyl ” is short for Polyvinyl Chloride, also called PVC, a plastic material widely used for applications that demand high durability. The prefix “poly” refers to the fact that the molecules are chemically linked to one another in long chains, called polymers. Although PVC is the principal ingredient in vinyl fencing, other ingredients are added to give the fencing desirable properties. For example, special ingredients, called impact modifiers, are added to improve the impact resistance of fencing. Titanium dioxide (TiO2) is a white pigment that is added for long-term resistance to ultraviolet (UV) light, a component of sunlight that tends to discolor and embrittle most substances that are exposed to sunlight over long periods of time. DuraMax specially formulates its vinyl to withstand the sunlight typically experienced in the Southwestern states, which is harsher than any other part of the country. It does this by using a higher proportion of TiO2 as well as adding special UV inhibitors and modifiers. The resulting formula, called DuraResin, unique to DuraMax products, is the only one that has been engineered as the best product in the market today!

DuraMax Building Products Deliver Strong, Durable, and Low-Maintenance Products That are the Best Value for the Money
DuraMax Building Products is a world class manufacturer that specializes in building Strong, Durable, and Low-Maintenance outdoor products that include vinyl sheds, vinyl garages, greenhouses, cabins, and vinyl fences.
DuraMax manufactures its outdoor products by combining rigid vinyl, the most durable outdoor material available today, and steel reinforcement for super strength. The combination of these high-quality materials delivers low-maintenance products that are backed by a lifetime warranty which is as strong as the products themselves.
All DuraMax products have been tested for high winds, heavy snow loads, fire resistance and other adverse conditions. DuraMax products are well-designed and include many features like extra-wide doors, shelving, windows, and much more.
If you are looking for outdoor products that can withstand the elements, provide superior value and attractiveness, then DuraMax is for you.

The 4×8 can be used as a stand alone unit in the back yard if you want. However, the door only fits on one side and accordingly will open in different directions based on which side of your home you install the shed. Make sure you check the opening direction of the door before purchasing this unit.

The shed will not leak, but after installing the roof you will need to apply silicone along the running edges of the roof ridge caps and around the washers on the roof plugs. To avoid seepage around the bottom of the shed, apply silicone to the outside or inside of the “U” channel that runs along the bottom of the shed.

Windows are sold separately. The window lets light into the shed and when slid open provide air circulation.

You can fit at least 2 windows in most sheds. For every middle panel you can have 1 window. (windows do not fit on corner panels)

The window will fit all sheds. You need to install the window in a middle panel (not a corner panel). The panel is cut using a jig saw and the window is placed between the columns. Our windows are sliding windows.

Assembly varies depending on the size of the shed, whether you have a foundation and number of extensions. Here are some estimates for some of our basic sheds: The 10×8 takes two people 4-5 hours, the 5×3 takes 1 hour, the 4×8 takes 3-4 hours; and the 8×6 takes 2 people 3-4 hours. Your choice of foundation and the number of extensions you wish to add to the shed will add to this.

We have a 15 Year Limited Warranty against manufacturing defects. While the shed will not pit, corrode or yellow, the color may shift slightly based on the intensity of the sun in your area. All parts are covered by our warranty and any defects will be replaced promptly.

If you don’t have a concrete pad, a foundation is needed on which a plywood floor can be laid. We offer a galvanized steel foundation kit that elevates the shed off the ground about 2″. It provides a level structure on which the plywood floor can be laid. It’s a quicker and easier solution than building a wood foundation with 2x4s. (our instructions do show how to build a foundation from 2×4 wood)

Yes, you can build the shed on an existing concrete pad provided its level.

Yes, our 5′ yardsaver series comes with a complete floor that can sit on most surfaces including grass or soil.

You need a level flat surface on which you can build the shed. The floor can be a level concrete pad or you can build a floor with one of 2 options: 1) build a foundation with 2×4 wood and lay a plywood floor on top or 2) purchase our ready to go foundation kit and lay a plywood floor on top. (we do not supply the plywood floor with the foundation kit)

We do not recommend painting the shed. If you insist you should use paint made specifically for PVC. However, the paint will require future maintenance and eliminate the advantages of our durable and maintenance free vinyl.

You can tear down the shed and build again. You would need additional plugs, pins, and washers. Contact us at toll-free number 1-800-483-4674 to purchase these small parts.

No, we do not assemble the sheds…the customer will assemble the shed.

The sheds are delivered to the nearest shed dealer location. They can be delivered to your home but will carry a residential drop off charge.

Depending on the weight you want to place on the shelves, you can either place the shelves on screws mounted straight into the metal columns or for heavier loads you can build the shelves up from the floor of the shed.

DuraMax does not offer any shelves. Shelves can be built from the ground up. Items can also be hung from the column supports however care should be taken not to hang too much weight especially in heavy snow areas.

The sheds come in a neutral color that is best described as ivory or eggshell.

Vinyl is a durable material that will not rust, rot or dent and never needs painting. It lasts for years. Metal rusts and dents while wood needs repainting and will eventually rot. Vinyl requires no maintenance other an occasional wipe down.

The shed walls and roof panels are made from rigid PVC which is totally maintenance free. Additives are added to ensure the panels will not warp, bend, peel, crack or yellow under the sun. For strength the roof and wall panels are reinforced by galvanized, metal profiles.

The shed comes in 4 widths with extendable depths: 10′ wide Woodbridge comes as 10’x8′, 10’x10′, 10’x13’… 8′ wide Duramate comes as 8’x6′, 8’x8′.. 5′ wide Yardsaver comes as 5’x3′, 5’x5′, 5’x8’… 4′ wide Sidemate comes only in a 4’x8′