How to Build a Deck on a Modular Home

Adding a deck to your modular home can give you an outdoor space to relax and have somewhere to entertain.

You can choose to do a small deck or a large deck, and you can also choose to have that deck covered or uncovered.

How To Build a Deck on a Modular Home

When you want to learn how to build a deck on a modular home, there are many steps you will need to take to build your own deck on your modular home.

Doing it yourself can help you to save money.

It is important to remember, though, if you find yourself in over your head, to call a professional deck builder.

When doing it yourself, there are several things you will need to decide:


One of the first things you will need to figure out is how much you want to spend on building your deck.

Check out wood prices and other material prices to get a good idea of how much you are going to have to spend.


Determining the size of your deck will be the next thing you will need to determine. This will all depend on your personal preferences.

You can do the deck the entire length of your modular home, or you can just do it in whatever size you wish.

When determining the size, figure out what you will be doing on your deck.


You will need to determine whether or not you want your deck on the front, back, or side of your modular home.

Most people place their deck on the backside of your modular home so that they have some privacy when they entertain.

Color or stain

After you figure out the location and size of your new deck, you will want to determine exactly what color or stain you want it.

If you prefer a natural wood look, you can just stain your deck.

If you want your deck to match the color of your modular home, you can easily paint it. Just make sure that you sand it well and ensure that you are using quality paint.

Covered or uncovered

If you want, you can put a roof over your deck. A roof can help to provide shade and protection from the elements.


If you have never built a deck before, you can look up plans online that will show you exactly how you should build your deck.

You can also watch videos on YouTube.

Materials Needed For Your New Deck

Building your deck may seem like a huge undertaking, but as long as you have the right materials and plans, you will have no trouble creating a great-looking deck.

Some of the materials you will need include:

  • Tape measure
  • Level
  • Wood
  • Gravel
  • Weed blocker
  • Lumber
  • Deck pliers
  • Deck screws
  • Stain or paint
  • Sealant
  • Drills
  • Sanders
  • Roofing material

You will also need more materials, and you will have to consult your plan to make sure that you have everything you need before you get started on your deck-building project.

The Steps To Building Your Deck

Once you have made sure that you have a plan and gathered your materials, there is one step left that you will need to take before starting your deck build.

Call your county or city and see if you need to have any permits.

Certain areas will require permits and inspections for decks, while others will not.

In learning how to build a deck on a modular home, it is important to have the necessary permits to ensure that you do not have to tear down the deck and rebuild.

1. Putting Down Gravel And Weed Barrier

Once you have chosen the location, have all your materials, and have any permits, you can now begin your deck build.

The first thing you will do is to dig your holes for the footings.

Once you have dug your holes, you will want to place gravel at the bottom of each hole. This will prevent sliding.

Once you have your footers in place, you will want to put down a weed barrier so that weeds do not grow up through your deck boards.

2. Adding Your Footings and Jousts

Once you have the holes dug, you can add the footings and the joist.

You will want to ensure that everything is level. If you do not, it could make your deck planks be off.

Once you have placed your footers, make sure that they are buried and secure in the ground.

3. Prepping Your Deck Planks

Prepping your deck planks will help to ensure that your deck lasts for many years.

You will want to ensure that you cut the wood to fit your deck and then treat the underside with a waterproof seal to prevent mold and mildew from growing on it.

Only do the underside at this time.

4. Laying Your Deck Planks

You can now start to lay your deck planks. Use a spacer to ensure that the planks are spaced easily.

You will want to take your time to make sure that you get everything even. If one of your boards gets off, the whole project can be off.

5. Do The End-Caps and Build Steps

Once you have your planks laid, you can now add end-caps to the deck to give it that finished look. After you do the end-caps, if you plan to add steps, you can do this now.

6. Adding a Roof

At this point, you can determine whether or not you want to add a roof.

Adding a roof to your modular home’s deck will be a bit more difficult, especially if you have no experience in roofing.

If you do not want to tackle this yourself, call a professional roofing company to help you with your roofing needs.

7. Stain or Paint Your Deck

Before you can stain or paint your deck, you will want to sand your deck and then clean it thoroughly. You will then need to wait for it to dry, and then you can paint or stain the deck.

8. Adding Screen

If you have put a roof on and you wish to screen in your deck, you can do so now. You will need to have a frame and attach the screen to your deck structure.

Once you have finished your screen, you are done with your project. Now, all there is left to do is to add some furniture and enjoy your new deck.

Frequently Asked Questions

What size deck will work best for my modular home?

Any size that you want. Keep in mind that if you live in a neighborhood with an HOA, there may be certain size regulations, especially if you put it on the front.

Is it better to stain or paint my deck?

Either one is fine and will work well to protect your deck.

How do I properly maintain my deck to make it last for years?

Deck maintenance is imperative to ensure that your deck lasts for many years.

You will want to make sure that you seal it, keep an eye out for pests like termites and wood ants, and you will want to make sure that you clean it regularly.

Do I have to add a roof?

No, the roof is not necessary if you do not want it.

Final Thoughts

Adding a deck to your modular home can give you a wonderful place to entertain and relax.

Adding a deck can also add a good amount of value to your home and can be a huge selling feature if you decide to sell in the future.