Concrete block retaining wall system good for any residential or commerical application. Multiple sizes, shapes, textures and colors available. Retaining Walls.

How much does Allan Block wall cost?

Allan Block SRWNatural StoneApplicationsResidential CommercialResidentialContractor Profitability↑↓Product Growth Potential↑StableAverage Costs/SQ Ft.$15 – $25$20 – $40

How long do block retaining walls last?

Using a concrete footing will actually prevent the wall from being able to naturally shift. How long will my retaining wall last? For a permanent wall structure, the general lifespan is generally between 50 and 100 years. This does, however, depend on the conditions of the soil and groundwater at your site.

Is Allen block expensive?

What Does Allan Block Cost? Though Allan Block costs vary depending on which block you chose, material costs for Allan Block are competitive with treated wood and stack rock, are less than lannon stone, boulders and other stackable masonry systems, and cost up to 30 percent less than walls requiring concrete footings.

Can you fill Allan Block with concrete?

Engineering Properties. No-Fines Concrete Backfill can be used with any of the Allan Block Retaining Wall Collections. No-Fines Concrete Backfill typically consists of cement, fly ash, water and coarse aggregate.

How many Allan blocks does a pallet have?

Pieces per Pallet64Weight per Unit57 lbs 25 kgUnit Coverage1.47 linear footPallet Coverage94 linear footWeight per Pallet3648 lbs 1600 kg

What is the cheapest material for a retaining wall?

The cheapest types of retaining walls are wood and concrete blocks, followed by concrete and stones or bricks. Each material has benefits and drawbacks, including strength, longevity, and attractiveness. For those who are planning on building their own retaining wall, it is vital to plan and research.

What do you fill Allen blocks with?

Allan Blocks requires a minimum of 16” of clear draining rock, OR 12” of No Fines Concrete directly behind the wall, AND prefers the infill soil area shown in this picture to be a compactable material such as ¾” Minus or road-base.

How much do concrete retaining wall blocks weigh?

The average weight of a retaining wall block is around 53 lbs and, per pallet, the weight is around 2190 lbs. As you can see, the blocks for a retaining wall are pretty heavy, because since they are holding on a lot of weight of the soil and water behind it, they have to be very strong.

Do you fill the holes in retaining wall blocks?

Backfilling and Compaction Fill in the area in front of the blocks with on-site soils. This will keep the base course blocks from shifting while filling and compacting. Fill the hollow cores of the base course and 12 in. (300 mm) behind the block with wall rock to the height of the block.

Article first time published on

Do you need a footing for a retaining wall?

A buried structural footing is usually required for larger retaining walls. To create this, a landscaper pours concrete below frost level (the depth to which the ground will freeze during the winter). Footings poured too shallow are prone to shifting and moving if moisture in the soil freezes and heaves.

What is the strongest type of retaining wall?

Concrete and Masonry Retaining Walls Poured concrete is the strongest and most durable choice for retaining walls. It may also be carved and formed to look like mortared stone depending on your taste.

What kind of retaining wall lasts the longest?

Timber retaining walls can last up to 40 years if the wood is high quality, while masonry walls if properly designed and installed, can last until someone decides to tear them down. Concrete block or poured concrete retaining walls are particularly long-lasting, as concrete is known for its strength and durability.

How do you compact no fines concrete?

No fines concrete can be compacted without the need of any types of concrete vibrators and can be easily done by tamping with rods.

How do you lay no fine concrete?

Begin with a coarse aggregate material with an average size of 0.75 in (20 mm) with no material less than 0.325 in (10 mm). Mix aggregate with cement in a six to one ratio. Once the cement is thoroughly mixed with the aggregate, add water in the volume indicated to the right, do not over water the mix.

What is meant by no fine concrete?

Definition of no-fines concrete : porous concrete made without the use of fine aggregate.

Does a 2 foot retaining wall need drainage?

These walls need a drainage system regardless of the wall height. If there are poor draining soils such as clay behind the wall, there needs to be drainage incorporated the wall system. Clay when wet is very weak, so it is essential to provide a way for water to escape from behind the wall.

What blocks are best for retaining wall?

Concrete blocks are ideal for building walls to hold back the soil after you dig into a slope for a pathway, patio, or another landscaping project.

How much should I charge to build a retaining wall?

On average, building a retaining wall costs $23 per square foot. For the more budget-conscious, retaining wall prices average at $19 per square foot. On the upper end, retaining wall costs are around $50 per square foot.

How long do Allan blocks last?

They won’t rot or decay. With over thirty million square feet (2.8 million square meters) of ALLAN BLOCK sold and installed, we can say they truly do last a lifetime.

How do you remove efflorescence from pavers?

1. Thoroughly clean your patio. …
2. Get your hose ready. …
3. Mix Muriatic Acid with water in a plastic watering can. …
4. Pour the Muriatic Acid mixture over a small area. …
5. Wait three minutes. …
6. Rinse the small area thoroughly with your garden hose. …
7. Repeat steps 4–6 in small sections.

Why is my brick wall turning white?

Efflorescence is a crystaline, salty deposit that occurs on the surfaces of bricks, concrete and other masonry products. It is white, sometimes a brilliant white or an off white colour. … When salt loaded water reaches the surface of the brick, air evaporates the water, leaving the salt behind.

How much does a jumbo Allan Block weigh?

AB CollectionNameSetbackWeightAB Classic6°75 lbs 35 kgAB Jumbo Junior6°35 lbs 15 kgAB Lite Stone6°35 lbs 15 kg

How much do Allen blocks cost?

For a 25′ x 3′ Allan Block retaining wall expect to pay between $12,000 – $15,000.

What are the dimensions of an Allen Block?

ALLAN BLOCK Expocrete AB Classic Retaining Wall Block- Grey – 18-in W x 12-in D x 12-in H 16209264 | RONA.

How thick is a retaining wall block?

Base thickness = 1/8 of the height of the wall but not less than 12 inches. Stem thickness = 6 inches + ¼ inch for each foot of wall height.

How much does a pallet of landscape blocks weigh?

Weight per pallet: 2190 lbs.

What is the size of a retaining wall block?

For heavy-duty walls up to 30 ft. tall, go with full-size blocks. They’re 16 to 18 in. long x 6 to 8 in.

What is a jamb block?

A concrete masonry unit which has an end slot (rabbet) for use at an opening to receive a jamb.

What type of gravel is best for retaining walls?

Due to soil erosion, your retaining wall should be built on a solid foundation made from gravel. Choose gravel that has stones sized between 1/2-inch and 3/4-inch.

What is gabion retaining wall?

A gabion wall is a retaining wall made of stacked stone-filled gabions tied together with wire. Gabion walls are usually battered (angled back towards the slope), or stepped back with the slope, rather than stacked vertically. … Galvanized steel wire is most common, but PVC-coated and stainless steel wire are also used.