N
InsightHorizon Digest

Can you extend a deck

Author

Andrew Mccoy

Updated on April 09, 2026

One of the great joys of decking is its flexibility. As your needs change, you might start thinking your initial deck is too small and feel that you want to extend it. This is simply a matter of adding on another sub-frame. … To extend your deck up a slope, you can start the new sub-frame on top of the last.

Can you extend an existing deck?

However, the good news is that if the original deck is structurally sound, you could consider simply extending the existing deck. … You could consider widening or lengthening the deck on its current level. Many people like to add new levels to the deck, connected by stairs.

How do I make a small deck bigger?

Installing diagonal deck panels will help make your small deck appear bigger in the eyes. A diagonal floor will give the illusion that the area is spacious since it will elongate space and make it seem more open. You can also opt for cable style railings instead of hand rails.

How much does it cost to extend a deck?

How much does a deck extension cost? Adding onto an existing deck runs $15 to $50 per square foot. It depends on your location, the type of materials, and how complex the design is.

How do you add support to an existing deck?

  1. Mark the post’s corner on the footing. The support post’s side should be flush with the outside of the beam or doubled header.
  2. Draw the outline. …
  3. Heavy-duty hammer drill. …
  4. Sleeve anchors. …
  5. Mark for the hole. …
  6. Drill the Hole. …
  7. Tap the anchor in. …
  8. Tighten the bolt.

Does a deck add value to a house?

Here’s a good one: many homeowners recoup a significant amount of the money they invest in their deck because the deck adds to the resale value of their home. … In fact, a survey from Home Remodeling magazine found that composite decks return about 74% of their original cost and wood decks return about 87%, on average.

How can I make my deck post taller?

There are three different ways to extend your wooden fence post. The two easy ways are adding metal tie fastener to both posts on the front and back or adding a wood face board on the front and back of both posts.

How long does a deck last?

A deck made of untreated wood can last anywhere from 10 to 30 years. Decks made of treated wood and composite materials can last as long as 50 years. Many composite decks come with a 20-year warranty – and often a lifetime guarantee.

Is it cheaper to build your own deck?

For basic deck designs using the least expensive lumber, you can expect to pay from about $8 to $10 per square foot (depending on the material) of deck area if you do the work yourself or pay about $30 per square foot if the material is professionally installed.

How big is too big for a deck?

Size of Your Home Most builders suggest that your deck should be no larger than 20 percent of the house’s* square footage. This is so that the deck does not overwhelm a home visually. This, of course, is up to you. If you feel you need a larger deck that takes up more of your yard space, feel free!

Article first time published on

What is a good size deck for entertaining?

However, the average size of a deck should range between 300 and 400 square feet. Larger decks can be constructed with multi-level designs and bigger square footage depending on the space available. Generally, a deck should be wider and the longer side should be proportionate to the house.

How do I extend my porch?

  1. Create a porch-extending patio by sinking concrete pavers or flagstones in the lawn adjacent to your porch. …
  2. Drop pavers or stones close to each other on the lawn, allowing 1 to 2 inches between them for a grassy border. …
  3. Rake the soil flat to make a shallow hole the same depth as the paver or stone.

Can you enclose a deck?

Fully enclosing a deck requires the addition of a roof of some kind. Is your existing deck’s foundation designed to bear the additional load of an attached roof? If not, then you will need to bring the foundation up to local building code standards before you can proceed.

How do you attach a 4x4 to an existing deck?

The quickest and most secure way to mount a wooden 4×4 or 6×6 deck post to an existing deck surface is via a Titan Post Anchor. Titan Anchors provide a solid, powder-coated steel connection point for your wooden post to attach to surface below.

How much does it cost to reinforce a deck?

National average cost$500Low-end cost range$48-$150High-end cost range$1,800-$3,000

Can you add flashing to an existing deck?

Installing deck flashing is not that difficult to do, even if the deck is already built. You will need to remove a deck board, or a section of deck boards pending if the deck boards run parallel or perpendicular to the deck ledger board.

Can I extend a 4x4 post?

What Is the Strongest Way to Join 2 4X4 Wood Posts? Joining 4x4s together to extend their length can be as easy as a butt joint or as complex and elaborate as a keyed, double tenoned scarf joint.

Does a deck raise your taxes?

How much will a deck affect taxes and resale value? According to IRS guidelines, building a deck is a capital improvement and may increase local property taxes. Taxes vary from city to city, so check with the local tax assessor before beginning construction or repair.

Are decks a good investment?

A deck is an overall solid investment that increases the value of your home, even in a down housing market. You can expect to recoup at least 70-80% of your building expenses when you go to sell your home.

Is a deck or patio more expensive?

Patios are generally less expensive than decks, but the ROI on a new deck addition runs greater than one on a patio. However, both additions can offer a great experience depending on what you’re looking for.

How much would it cost to rebuild a deck?

Rebuilding the Whole Deck: If the deck is old or decrepit, removal costs $5 to $15 per square foot, so taking down a 10 x 12-foot deck would set you back about $1,200. A new wood deck costs an average of $14,360, according to Remodeling magazine, and a new composite deck is over 5 grand more at $19,856.

What is the labor cost to build a deck?

Labor Cost to Build a Deck The cost of labor to build a deck ranges from $8 to $22 per square foot. It will depend on several factors. For instance, the size, materials used, the level built on. It will also depend on the conditions of the area and any additional features such as built-in seating or stairs.

How long does it take to build a deck yourself?

The average deck runs about $7,000. You can save most of that cost by putting in some serious time and sweat equity. A 12 x 24-foot one typically requires two people to complete and will take anywhere from one to three weeks depending on experience and skill level.

How do I extend the life of my wood deck?

  1. Sweep and Wash Weekly. The surfaces of your deck collect dirt, debris, pollen, and other grime on a daily basis. …
  2. Plants and Shrubs. …
  3. Power Wash. …
  4. Sand and Repaint or Restain. …
  5. Check for Rot and Cracks.

Can I just replace deck boards?

If your existing deck is old, shabby and a maintenance nightmare, you don’t have to tear it all down and start over. Chances are that the structural parts are still in good shape. If so, you can simply remodel it with new decking, rails and stairs, and save tons of money over the cost of a complete rebuild.

How can I make my wood deck last longer?

  1. Give the deck a good scrub as needed. Two rounds of cleaning and rinsing with ordinary soap and warm water will give your deck a nice facelift. …
  2. Every two to three years, hire a professional to clean and reseal it. Treating a deck only lasts a few years. …
  3. Restain the deck when necessary.

Is a 10x12 deck big enough?

A good size deck starts at 12 feet by 12 feet but can be as small as 8 feet by 8 feet for limited specialty use, such as a sitting area or a barbeque area just outside of the kitchen. Also deck should be no larger than the largest room in the house and not exceed 20% of the house square footage.

What is a typical deck size?

The average deck size is between 300 and 400 square feet. Generally, a deck should be wider than it is deep, with the longer dimension running along the house. With large decks, consider making them multi-level designs. This will help break up the look and designate areas for certain activities.

How much does the average deck cost?

The average price range of building a new deck in the United States can be anywhere between $4,000 and $11,000. Including materials and labor, a standard deck will cost roughly $30-$60 per square foot. That means, for a standard 14 x 20 foot deck, you can expect to pay around $6,000.

How can I do decking cheaply?

  1. Plastic or PVC Decking might be a good option if you want to cut down on the cost. …
  2. Rubber Paving is another popular option in British gardens. …
  3. Concrete and Stone Decking is also a popular alternative, though many people may see this as a simple alternative to a patio.

Can I build my own deck?

It may seem overwhelming at first, but if you have the time and a solid understanding of basic construction principles, you can build a pretty incredible deck all on your own. Just keep in mind that while a DIY deck project might be a great option for some, it’s not the solution for everyone.