SOLVED: Engineered Floor Joists Vs. 2×10: Which One Suit Your House?

As they affect the stability of the entire structure, support joists require special attention from homeowners during most renovation projects. Nowadays, once it comes to support joists, people have a wide range of options but few prove as good as engineered floor joists and 2×10. Both types of joists have top-notch capabilities so everyone should have an easy time adapting them to their households. Nonetheless, despite the comparable performance of engineered floor joists and 2×10, one topic still piques the curiosity of numerous homeowners: engineered floor joists vs. 2×10.

Breakdown Of The Joists 

k.engel.constructionLong span 2x10 floor joists require IBS2000 bridging, 2 rows to meet this span requirements even on 12oc.… | Строительство, Деревянные дома, Дом

Unable to make up your mind between engineered floor joists and 2×10 so you could use a couple of insights? In that case, this article is exactly what you need. Down below, you would find virtually all the information about the joists that you must consider before reaching a decision.

Engineered Floor Joists and 2×10: Overviews

Engineered Floor Joists: In layman’s terms, an engineered floor joist is a type of joist consisting of varieties of wood layered in many directions. As a result, engineered floor joists manage to keep the weight down but their strength is as good as that of other types of joists. Furthermore, engineered floor joists only cost several bucks per square foot. That is by all accounts a big plus if you own a big house and your budget for the renovation is kind of tight.

2×10: As the name suggests, 2×10 is a type of joist that makes use of multiple 2×10 wood boards to provide support to the structure. Thanks to the resilience of wood boards, the level of support of 2×10 is outstanding. Usually, people use 2×10 in locations that happen to feature timber frames to maintain uniformity. Last but not least, homeowners have been using 2×10 for quite some time so a lot of stores carry it and that guarantees great availability.

A Comparison Of The Joists 


Different stores offer different prices but in most of the cases, the cost of a 2×10 is several times that of an engineered floor joist. As a result, in terms of affordability, the majority of modern homeowners regard engineered floor joists as the winner in engineered floor joists vs. 2×10.

Ease of use

Light and compact, engineered floor joists have forgiving handling characteristics which is why people don’t have to do much to get them into position. Besides that, it’s possible to adjust engineered floor joists on-site without requiring engineers. For 2×10, it incorporates heavy wood boards that require time and effort to set up. In times of need, homeowners could also adjust 2×10 but the range of adjustment is small due to the limited maneuverability of the wood boards.


Compared to other types of joists, engineered floor joists appear young but nowadays, the average stores sell them many lengths. In the case of 2×10, the maximum length that people can get from stores in the neighborhood is only 16 feet. Therefore, if you look for 2×10 that feature a length of 20 feet, 24 feet and above then you have to pay a visit to lumber yards.


Overall, in the event of a fire, both engineered floor joists and 2×10 would catch on fire unless homeowners take measures to prevent that. That being said, owing to the construction of engineered floor joists, flame could spread quickly and lead to total collapses. About 2×10, the lack of cross-sections means it poses less of a risk to the structure during a fire in the immediate terms. Unsurprisingly, once it comes to safety, most people consider 2×10 to be the one that comes out on top in engineered floor joists vs. 2×10.


Engineered floor joists deal with water splashes well so they rarely experience warping in use. For 2×10, the odds of it warping when exposed to water tend to be high. That is why if you use 2×10 for your support joists, you have to keep water out at all costs.

Choosing Between Engineered Floor Joists And 2×10: A Homeowner’s Guide 

Engineered I-Joists - Paragon Engineered Timber Ltd

With so many differences in preferences, it’s natural that people have conflicting opinions about engineered floor joists and 2×10. However, if you want to make sure that your money is well-spent, take a look at the following hints

  • Take the wallet into account: If you have money to spend, you could use whatever type of joist you like. On the other hand, if your wallet is not exactly fat, you should go for engineered floor joists and save money for more pressing needs.
  • Give the house some thought: Well, with proper installation, both engineered floor joists and 2×10 could blend in with the surrounding. Nonetheless, if you care about the aesthetics of your house then it’s a good idea to use 2×10 to support sections that integrate wood.
  • Keep the scale in mind: For small-scale projects, minor differences exist between engineered floor joists and 2×10 regarding installation. Still, as the scale of the project increases, you have to think about using engineered floor joists to cut down the time and effort that go into the setup process.


Deck Joist Sizing & Spacing |

What is the weight limit of a 2×10?

Generally speaking, a 2×10 that is set up properly could hold 1,200 pounds with relative ease. Depending on the environment, the weight limit of 2×10 may drop as time passes by. In any case, you need to avoid pushing close to the weight limit of 2×10 if you can help it.

How long could a 2×10 span?

When the need arises, a 2×10 is able to span as long as 15 feet without any support whatsoever. That is going to be more than enough for today’s residence.

Is it possible to repair damaged joists?

Assuming that you know what must be done, you could repair damaged joists by yourself. The repair of damaged joists usually involves “sistering”: the tying of a new joist beside the damaged joist which improves the strength of the support. If you lack confidence in your skill, feel free to hire professionals to handle the repair.

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