QA

Quick Answer: How To Build A 4X4 Deck

Can you build a deck with 4×4 posts?

In the past, many decks were built with 4×4 support posts (also called structural posts). But these can bow seriously, even if a deck is only 3 feet off the ground. For that reason, we strongly recommend that you use 6x6s instead, even if your building department does not demand them.

How far apart should 4×4 deck posts be?

The maximum spacing of 4×4 deck posts should be 6 feet on center, while the maximum spacing of 6×6 deck posts should be 8 feet on center.

How much does it cost to build a 4 by 4 deck?

The average cost to build a deck is $25 per square foot with most homeowners spending between $4,380 to $10,080 total. An entry level deck with basic materials costs $15 per square foot, while a deck built with premium materials costs $35 per square foot.

Are 4×4 posts strong enough for a deck?

For most decks, post size is overlooked unless an inspector notices the unusual height of a particular deck. A short 4×4 can carry an awfully big load, and many deck builders use 6×6 posts as a standard, regardless of the height or load of the deck.

Should I use 4×4 or 6×6 deck posts?

Unfortunately, a 4×4 post may not be able to withstand the weight, causing the entire porch to buckle. A 6×6 post gives you a little more long-term stability, particularly in those colder climates. Not only does it perform better when carrying heavier loads, but it also makes the heading for your roof more secure.

How many posts do I need for a 12×12 deck?

For an attached 12 x 12′ deck, you’ll need at least 3 footings, plus at least 2 more if you’re planning on building stairs with it.

What size post should I use for a deck?

Deck Post Sizing Deck posts are usually 4 feet x 4 inches, 6 feet x 6 inches or 8 feet x 8 inches as determined to be appropriate for the expected load.

Are decks supposed to shake?

If your deck gets a case of the shakes when you walk across it, there’s probably no reason for concern. Still, in some cases, the deck movement puts extra stress on the fasteners and connectors.

How do you stop a deck from bouncing?

A: A “bouncy” deck is usually caused by long joists between beams. Assuming you can access the support framing, you can strengthen the deck by installing rows of blocking cut to fit tightly between the joists, spaced every 3 to 4 feet along the span.

How do you support a deck without posts?

Instead of using footings, adding a level of gravel will give you the drainage aspect you are looking for. You can then add a frame of wood that anchors in concrete blocks that sit in the gravel, creating your new deck. Concrete blocks won’t rot, making them an ideal option for those who don’t want to use wood.

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.

What is the cheapest way to build a deck?

Choose wood, but carefully: Untreated wood decks are generally the cheapest to install, but don’t forget long-term costs. Wood decks require yearly maintenance and deteriorate quickly if they don’t get it.

What is a floating deck?

A floating deck, also called a free standing deck, is simply a deck that’s not attached to any structure, including (of course) your house. Instead, you can put your deck’s structural members — posts, girders, and joists — on precast pier blocks set directly in the ground.

Should deck joists be 2×6 or 2×8?

In general terms, joists spaced 16 inches on center can span 1.5 times in feet their depth in inches. A 2×8 up to 12 feet; 2×10 to 15 feet and 2×12 to 18 feet. The larger the deck, the larger the joists. 2×6 joists should only be used on ground-level decks that do not require, and will not provide for, any guards.

Is a 4×4 stronger than a 2×6?

The single 2×6 is 68% stronger than the 4×4 for vertical loads as you describe. However, I caution you that it may be a good idea to have someone design this beam properly so the job is done right. If you’re willing to have a 4″ wide beam, why not create a double 2×6 beam, this will be 237% stronger!Jan 1, 2007.

How much weight can a pressure treated 4×4 hold horizontally?

The amount of weight that a 4×4 can support horizontally will depend on the type of wood you are using, the grade of wood, and the length of the board itself. Your average yellow pine 4x4x8 will be able to hold up to two tons (4,000 lbs), with the correct vertical support beneath it.

How far apart do footings have to be for a deck?

The standard rule for footings is that for a basic deck, the larger the beam and footing size, the fewer footings you’ll need. If you’re building a simple deck, footings and posts should be placed less than 8 feet apart.

Should you notch deck posts?

Say “No” to notching pressure-treated deck posts. We want you to build an outdoor railing system that you, your family and guests can enjoy without worrying about safety issues. In order to do so, you need to know this building shortcut is not advisable, and we recommend avoiding it at all costs.

Is it OK to set deck posts in concrete?

A deck post should always be placed on top of footing, not inside concrete because it can break. When concrete is poured around a deck post in this way, the post will rot due to moisture buildup by the soil.