the reason many people choose to build a timber retaining wall is because of the esthetic value. while steps can be taken to make a concrete or rock retaining wall more appealing, it is difficult to make either as attractive as a timber retaining wall.
a good-looking retaining wall depends on level footings, and the best way to establish level over long distances is with a builder's level. if you're building a wall with only a couple of 4-ft. sections, you can get away with using a 4-ft. level, but for a longer wall, rent a builder's level. how to set it up:
how to build a wood retaining wall if you want to move the earth, build a retaining wallby the time you're done, you'll feel as though you've moved half the planet. because a retaining wall is going to be in contact with the ground, make sure you use lumber that's rated for ground contact. your best choice is a pressure-treated wood that has
tip: for added stability, it is wise to insert a few timbers perpendicular to the wall. called 'deadmen, the timbers extend from the retaining wall deep into the ground behind the wall. drive 2' lengths of rebar through the ends of the deadmen and into the ground.
for a basic project in zip code 47474 with 120 square feet, the cost to install a retaining wall starts at $24.70 - $33.88 per square foot*. actual costs will depend on job size, conditions, and options.
if you have your retaining wall built, figure about $15 per square face foot for a timber wall, $20 for an interlocking-block system or poured concrete, and $25 for a natural-stone wall. preparing a troublesome siteone that includes clay soil or a natural spring, for examplecan raise costs substantially.