What is the best material to fill behind a retaining wall?

• <div><p>Sand and gravel are two suitable options for filling behind a retaining wall. If you’re building your own retaining wall, you’ll complete this part of the process—known as backfilling—after you finish laying the blocks. Make sure not to skip it—otherwise, you could wind up with drainage issues, which can cause your retaining wall to collapse.</p></div>

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Q: Why do retaining walls lean?

• <div><p>Failure to compact the soil during construction is the most common cause of leaning retaining walls. In addition, poor drainage can lead to excessive water pressure behind a retaining wall, pushing against it until it begins to move forward away from the soil it is holding back.</p></div>

Q: How do professionals ensure durability in wall construction?

• <div><p>Through proper drainage solutions and compacting the foundation soil.</p></div>

Q: How tall can a railroad tie wall be?

• <div><p>Generally, a railroad tie retaining wall consisting of a single line of ties should be between <b>3 and 4 feet tall</b>&mdash;and the height often tops out at around 6 feet. You can go taller, but you may need additional footings and reinforcements, including a second layer of railroad ties to support the added weight of the soil it&rsquo;s holding back.</p></div>

Q: How long does a retaining wall last?

• <div><p>The lifespan of a retaining wall varies based on its particular material, whether it was properly installed, how well it&rsquo;s maintained, and your local climate. Concrete, stone, and brick retaining walls last the longest, with concrete lasting between 50 and 100 years on average. Brick tends to last the longest, with a minimum of one century, under the right conditions. </p><p>Timber retaining walls can start to deteriorate at 20 years, depending on the wood quality, but in the best case, they can last 40 years. Pressure-treated wood retaining walls last 30 years on average.</p></div>

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Last update on December 12, 2025

Reviewed in December 2024
Great customer service Fast installation Affordable service Skyline tore off and re did the asphalt roof on my house after wind and hail damage. I was so impressed I hired them to also do my garage and shed. These guys do great work.
SKYLINE RESTORATION INC
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Reviewed in October 2023
My mom needed an 86 inch TV mounted to the wall. If you are looking for someone who is professional, prompt, communicative, knowledgeable and has great rates- Omer is your man. We will definitely be using him again!
Smart Homes Security and IT Services
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Reviewed in June 2023
David was personable, prompt, and precise in his installing of a deadbolt and door knob. I would hire him for other work, as well! 5/5
David J. Soukup Construction, Inc.
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Reviewed in November 2022
The windows are awesome! I can see out now and clean easily! The installers were kind and efficient. Their carpentry skills are top-notch!
Renewal by Andersen
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Reviewed in July 2021
Timing from when I received the quote and scheduling the work was just as Mr. Skinner told me. The contractors came with the list of installation and removal of old equiptment that Mr Skinner and I put together with a smile and the attude of getter done. Thank you again BCarney
Sears Home Services - Kansas City HVAC
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Reviewed in November 2020
We had storm damage due to the Derecho. Aurelio did our estimate himself. He was very professional and explained what was needed clearly. It was immediately evident that he knew exactly what he was talking about. He got us worked into the schedule faster than expected due to material...
Affordable Roofing and Exteriors INC
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Reviewed in August 2020
Miguel fit me in to his tight schedule when my former contractor was unable to do the job as promised. I was desperate to complete a closet project prior to having closet organizers installed. Miguel was professional, polite and available when contacting was necessary. The job was completed on...
Dr. Home
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Reviewed in February 2020
Phil and his crew rearranged their current jobs to ensure that our floors were refinished in time to get the painting done before our move-in date. We also asked them to remove all the baseboards and quarter round - which was good thing because then we could see how poorly the flooring had been...
Oak Wood Floor
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Reviewed in February 2020
Marco is professional and responsive, and his work is very good. WE hired Penagos Painting to completely repaint the interior of a house and its garage that we had just purchased. They did a really good job covering the awful paint on our textured walls, and repainted the trim and doors in...
Penagos Painting
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Reviewed in May 2018
A home we had bought needed radon mitigation to reduce the radon level below the EPA recommended 4 pCi/L level. Being an older home which had been extensively added onto by previous owners, the construction which included approx. 1/3 over a small basement, 1/3 over two separate areas of concrete...
Neighbors Heating Cooling Plumbing & Geothermal
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