FAQ: How To Build A Retaining Wall With 6×6 Timbers?

Can you use 6×6 for retaining wall?

Build the Foundation Row



Starting at one end of the trench, place a 6×6 on the ground. Make adjustments to keep the timbers level and straight (images 1 and 2). Use a small sledgehammer to shift things into place and check plumb with a level. Make sure the row is level across the entire length of the wall.

How long will a 6×6 retaining wall last?

A timber retaining wall can last a little over a decade, if treated properly. If not maintained, the lifespan of a timber wall is around 3 to 5 years.

How tall can you build a timber retaining wall?

Your walls can be as long as you want, but limit the height to 4 ft. Add more terraces as needed to retain higher slopes, stepping them back about 4 ft.

How many deadmans are needed for a retaining wall?

Install one dead man every 6 to 8 feet around the entire wall. Continue building up the retaining wall, using landscaping screws to secure each timber. Cover the ground in front of the retaining wall with 2 to 4 inches of bark mulch.

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What is the cheapest retaining wall to build?

What is the cheapest retaining wall material?

  • Treated pine and is the least expensive material.
  • Hardwood is more expensive than treated pine.
  • Railway sleepers are another – slightly more expensive – option and are built to withstand ground and water contact.
  • Concrete sleepers are more expensive.

Does a 2 foot retaining wall need drainage?

Although there are exceptions, most retaining walls require gravel backfill, soil compaction, pipe or toe drains, and weep holes. Together, these four features will provide adequate drainage for most designs. Only a few types of walls will not require all of them.

What is the easiest retaining wall to build?

For the average do-it-yourselfer, building a retaining wall is easiest when using masonry blocks that will be stacked no taller than three feet, with no mortar binding the stones or concrete members. (For a curved wall, mark instead with a garden hose or spray paint.)

What is the best retaining wall block?

Timber and inter-locking-concrete-block walls are great DIY retaining wall ideas. Mortared masonry and poured concrete ones are usually best left to a mason.

How high can a retaining wall be without engineering?

How tall is your wall? Most municipalities require a building permit and a design from a Licensed Engineer if your wall is taller than 4 feet high (measured from the bottom of the first block to the top of the last block).

How deep should the footing be for a retaining wall?

Concrete retaining wall footing size



The depth to the bottom of the base slab should be kept at a minimum of two feet. However, it should always be below the seasonal frost line, and that often is much deeper in northern climates.

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How high can I build my retaining wall?

Gravity walls can be small (under 4-feet high) or go upwards to ten feet without reinforcement. Municipalities usually require a building permit for walls taller than 4 feet.

How much does a timber retaining wall cost?

Timber retaining wall cost will also vary depending on the type of wood you use. Average prices for materials and labour are: $250 to $350 per square metre for treated timber (pine) $300 to $450 per square metre for treated timber sleepers (hardwood)

Can I use railroad ties for a retaining wall?

A retaining wall allows you to turn a useless (for landscaping purposes) slope into a terraced, flat area. And perhaps the easiest way to build such a wall is with used railroad crossties.

What is a Deadman on a retaining wall?

Railroad tie retaining wall



Some of the ties are buried back into the dirt pile, called deadmen. My husband built a retaining wall from railroad ties.

Do you need landscape fabric behind retaining wall?

Whether the wall is made from stones, bricks or wood, it is important to provide a barrier between the building blocks and the soil. Landscape fabric is thin and sturdy and is a simple way to preserve a retaining wall’s construction.

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