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7th Avenue Modular Sectional Sofa Review: 8 Real World Tests

Derek Hales

Written By: Derek Hales

Updated on:

7th Avenue
92 Performance
100 Design
95 Quality
62 Assembly
70 Shipping
87.0 Overall Score
Tested With Scoring System 1.1

Best For

  • Highly modular with the option for user customization.
  • Comfortable and plush cushions for maximum comfort
  • Covers can be removed and machine washed.


  • Long assembly time
  • Shipped in many individual boxes
  • Shipping and return costs vary by location.

Our Verdict

As a lounging sofa, 7th Avenue created the perfect extra deep modular sofa that made even our testing staff not want to get up. Its deep seating, memory foam cushions, and solid build quality give the 7th Avenue Modular Sofa the perfect level of comfort, support, and durability we look for in a sofa.

The only issue we found with the 7th Avenue Modular Sofa was the setup. It took more time than we anticipated and the instructions were slightly confusing. However, 7th Avenue does have optional white glove assembly / setup for $100. In my view, that is an absolute no brainer to purchase. The sofa itself is fantastic, the only real pain point is the setup process.

Type: Modular Sectional
Seats: 3-seats
Dimensions: 132″ x 47″ x 24″

In This Review
Performance | Design | Quality | Assembly | Size | Shipping & Returns | Product Evolution | Comparison | FAQs

Video Review

YouTube video

Performance Summary

At Modern Castle we test 8 different factors that impact the performance, build quality, and usability of the sofa. Below is a complete list of our testing categories and their performance.

7th Avenue Laying Down
7th Avenue Laying Down
Test TypeTest Data
SupportVery Good
Assembly DifficultyFair
Assembly Time2.5 hours
Shipping Costs$99-$199
Return Costs$99-$199


The 7th Avenue Modular Sofa has exceptional performance as a lounging sofa. With its down alternative and memory foam layered cushions, it provided a well-balanced blend of support and comfort.




Very Good



When I first sat down on the modular sectional, I could instantly feel relief and comfort from these cushions. The cushions had a good balance of support and plushness that made even our heaviest tester not want to get up. Overall, we rated the comfort as exceptional for this modular system.

7th Avenue Relaxing
7th Avenue Relaxing

Another benefit of the system being modular is the ability to add additional filling to the cushions. The sofa comes with multiple mini packs of cushioning material that can be added to the back cushions or pillows to reach your desired firmness.


While sitting on the sofa, there was not a lot of bounce between our testers. Instead, when you first sit down, the cushions form to your bottom and support every inch of your body to prevent bouncing back up.


The 7th Avenue Modular Sofa does have some sinkage to it, however, this isn’t a bad thing. Since the model we tested had the extra deep seats, sinking into the cushions and the back pillows is inevitable.

7th Avenue Sinkage
7th Avenue Sinkage

The sinkage only added to comfort the longer we laid on the couch. It wasn’t so soft that we were absorbed into the cushions. In addition, it wasn’t so firm that it felt like the ground. It was a perfect balance, in my opinion.

Pressure Relief

Pressure relief was excellent for the 7th Avenue Modular Sofa. No matter which way you lay or sit on the sofa, the cushions and pillow will mold around your body to give you maximum relief.

7th Avenue Inside Cushion
7th Avenue Inside Cushion


The 7th Avenue Modular Sofa has a wooden base that offers the cushions, side arms, and back paneling good support. The base keeps movement to a minimum as all the panels, base, and seats are securely connected.

7th Avenue Sitting Upright
7th Avenue Sitting Upright


The 7th Avenue Modular Sofa is one of the softer sofas we have tested to date. Coming in with a 4 on the firmness scale, this sofa feels like you’re sitting on a cloud.

7th Avenue Firmness Chart
Firmness Scale


The design of the 7th Avenue Modular Sofa is excellent for the owner to design a unique sofa for their needs. With all of the 7th Avenue sofas based on this universal design, there is no limit to the layout and design of your sectional.

7th Avenue Sideview
7th Avenue

As we were assembling the sofa, we couldn’t help but think of ideas and ways that rearrange the pieces to meet different needs.


The legs are quite short for this sofa. There is little clearance between the couch and the flooring. It almost gives off the appearance that the sofa is on the ground. Unfortunately, you won’t be able to get a vacuum cleaning head underneath this sofa.

7th Avenue Legs
7th Avenue Legs

Base / Seat

The base has a wooden frame and is lightweight enough to move around. It has multiple connection points on all four sides, again offering the owner multiple design options for each piece. One of the main options, being the extension piece, makes a normal base seat into an extended deep seat.

7th Avenue Corner Seat
7th Avenue Corner Seat

Be careful though, depending on which base seat you order (regular or extra deep), you will only receive a cushion cover for that size base seat. For example, if you decide a few months down the road to turn your regular seat into a deep seat and purchase the extension, both the cushion and the cushion cover will not be big enough to fit the extension.


The arms come in two different sizes: one for the regular-sized couch (39”), and another for the extra deep design (47”). We reviewed the extra deep model, which requires the extra deep arms. With this couch being modular, it did come with the option to add the shorter arms, and not make the extra deep version.

7th Avenue Sideview
7th Avenue Sideview


The back of the 7th Avenue Modular Sofa has a lower design that hides the backboards below the pillows. In my opinion, this gives the sofa excellent lounging capabilities since the pillows can move and flex beyond the boundaries of the backboard.

7th Avenue Backside Couch
7th Avenue Backside Couch

However, it does make it slightly uncomfortable if you were planning on sitting upright. Since there is a short backboard, there is no support for upper parts of your back.


For each base block that you order, the 7th Avenue Modular Sofa comes with an extra-plush pillow. They have convenient zippers on the bottom that make it easy to adjust for your desired comfort level. The pillows do come with extra padding, which can be added to the pillows or back cushions to increase their firmness.

7th Avenue Pillow Size Comparison
7th Avenue Pillow Size Comparison

Quality Test

Our build quality test is a subjective test where we examine and assess the major material and design components of the sofa. Specifically, we are looking for build and design issues that are more likely to break and/or be difficult to use.

7th Avenue Base
7th Avenue Base
PartBuild Quality
Fabric CoverExcellent
Cushion MaterialExcellent
Back CushionsExceptional

The build quality of the 7th Avenue Modular Sofa was excellent. The base, arms, and backing all fit together without any major wobbling or feeling they are not securely attached. The base seats felt well constructed and built for repeated use.

7th Avenue Pillow Filling
7th Avenue Pillow Filling

Our only recommendation is to be wary of choosing lighter color fabrics. During assembly, the covers get dirty fast. Every hand-print and small dirt debris stuck to the cover and was easily visible with the white color fabric we tested.



Assembly took a significantly longer than anticipated. Instead of paper instructions that detail how to assemble the furniture, 7th Avenue has links to videos on YouTube that go through the setup. This did lead to some confusion on parts and which ends connect.

Setup Time

2.5 hours

Setup Difficulty


While assembling and connecting the base seats with the extensions, we required some “force” to get the pieces to connect. At several points during the assembly process it required 3 people working together to press the pieces together before joining them with the screw.

We recommended having at least two people for assembly to help push together and connect the pieces.

Overall, we were quite disappointed with the setup difficulty and setup time. This is easily the most difficult to assemble sofa we’ve tested to date.

Optional White-Glove Setup – 7th Avenue sells optional professional setup for $100 extra. Given that difficulty of assembling the sofa this extra cost feels like an absolute no brainer to us. I would recommend it to anyone buying this sofa.

Size & Options

Size can vary depending on the set up and so can the options. Our model that we tested was the Extra Deep 3 seater sofa. Below are the specifications of the 7th Avenue Modular Sofa.

AttributeMeasurement (metric)
Overall length132″ (335 cm)
Overall depth47″ (119 cm)
Overall height24″ (61 cm)
Seat depth32″ (81 cm)
Seat height18″ (46 cm)
Armrest height24.5″ (62 cm)
Leg height2.0″ (5 cm)
7th Avenue Seat Pillow Size Comparison
7th Avenue Seat Pillow Size Comparison

You can choose between 6 different color options – Pure White, Natural White, Oatmeal Beige, Heather Grey, Charcoal Black, and Graphite Grey.


Shipping & Returns

Shipping is an additional consideration when purchasing the 7th Avenue Sofa. Shipping rates do vary across the United States from $99 to $200 (the costs below are estimates). Their warehouse is located in Los Angeles, CA and does offer local delivery within 60 miles. For international shipping, you will need to contact 7th Avenue directly for shipping estimations.

Shipping Costs


Return Costs


7th Avenue does offer a free 10-day return with 100% money back guaranteed. They ask that you keep the original packaging for returning the items. This is so they can send you the labels and you won’t need new shipping material. However, you will still need to pay for the cost of return shipping.

7th Avenue Base And Couch
7th Avenue Base And Couch

Additionally, they offer a free fabric exchange to change the color in the event you don’t love the color you initially purchased.

Product Evolution

With the company being founded in June 2022, this is their flagship product and first product series. The 7th Avenue Modular Sofa has multiple variations and options that will fit all your sofa needs. They have a long list of modular setups and options for attachments to make the sofa one of a kind.

How does 7th Avenue compare?

Below is a complete list of our sofa tests and critical product data compared side by side to the average based on all of our sofa tests to date.

Test TypeTest DataAvg. Data
SupportVery GoodExcellent
Assembly DifficultyFairExcellent
Assembly Time2.5 hours52 minutes
Overall Length132″ (335 cm)92.3″ (234.3 cm)
Overall Height24″ (61 cm)29.6″ (75.3 cm)
Overall Weight0 lbs. (0 kg)144 lbs. (65 kg)
Shipping Costs$150$56
Return Costs$150$153

Compared to several of the other modular sofas and sectionals we have tested to date, the 7th Avenue received high scores in comfort and quality of material. We have tested others with similar build quality, however, those were pre-built and did not have the same user design options.

7th Avenue Mid Section
7th Avenue Mid Section

Because of the modular nature, it took a considerable amount of time to set up compared to others we have tested. But in the end, the longer assembly time proves worth it once you take your first seat on the 7th Avenue Modular Sofa.

Other Sofas to Consider

Linsy Rubik 3

Linsey Rubik 3

The Linsy Rubik 3 is a modular sectional designed to fit a wide range of rooms and homes.

Overall, the Rubik 3 is a solid choice for a sofa. It can fit just about any space with the right configuration.

25 Home Salo Antique

25Home Furniture

The 25Home Salo Antique Industrial Sectional is a deep seated sofa that is great for lounging.

Overall, if you like to lounge on the sofa rather than sit, the Salo is a solid option.


What is the lifespan of a modular sofa?

According to 7th Avenue, the sofas are built to last for 8 to10 years.However, with 7th Avenue, every part can be replaced if damaged. When the covers get dirty beyond a simple washing cycle, you can simply purchase a new set of covers.

Why choose a modular couch?

This is really a personal preference mixed with space availability. Modular sectionals and sofas can be designed to fit your specific needs and design requirements in each room. But they require more assembly time on average.

Are the covers on the 7th Avenue Sofa water resistant?

Yes. According to their website, the sofa covers are water repellent and stain resistant.

Are the covers machine washable?

Yes! All the covers on the sofa can be removed and washed in a washing machine.

About Derek Hales

Derek HalesDerek Hales is the Founder and Editor-in-Chief of He has been featured in Fast Company, Reader's Digest, Business Insider,, She Knows, and other major publications. Derek has a Bachelor's Degree in Business Administration from Kansas State University. Hales has been testing and reviewing products for the home since 2014.